[44] | 1 | <?php
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| 2 | /**
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| 3 | * WordPress DB Class
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| 4 | *
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| 5 | * Original code from {@link http://php.justinvincent.com Justin Vincent (justin@visunet.ie)}
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| 6 | *
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| 7 | * @package WordPress
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| 8 | * @subpackage Database
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| 9 | * @since 0.71
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| 10 | */
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| 11 |
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| 12 | /**
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| 13 | * @since 0.71
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| 14 | */
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| 15 | define('EZSQL_VERSION', 'WP1.25');
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| 16 |
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| 17 | /**
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| 18 | * @since 0.71
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| 19 | */
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| 20 | define('OBJECT', 'OBJECT', true);
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| 21 |
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| 22 | /**
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| 23 | * @since {@internal Version Unknown}}
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| 24 | */
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| 25 | define('OBJECT_K', 'OBJECT_K', false);
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| 26 |
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| 27 | /**
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| 28 | * @since 0.71
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| 29 | */
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| 30 | define('ARRAY_A', 'ARRAY_A', false);
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| 31 |
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| 32 | /**
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| 33 | * @since 0.71
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| 34 | */
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| 35 | define('ARRAY_N', 'ARRAY_N', false);
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| 36 |
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| 37 | /**
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| 38 | * WordPress Database Access Abstraction Object
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| 39 | *
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| 40 | * It is possible to replace this class with your own
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| 41 | * by setting the $wpdb global variable in wp-content/db.php
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| 42 | * file with your class. You can name it wpdb also, since
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| 43 | * this file will not be included, if the other file is
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| 44 | * available.
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| 45 | *
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| 46 | * @link http://codex.wordpress.org/Function_Reference/wpdb_Class
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| 47 | *
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| 48 | * @package WordPress
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| 49 | * @subpackage Database
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| 50 | * @since 0.71
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| 51 | * @final
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| 52 | */
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| 53 | class wpdb {
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| 54 |
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| 55 | /**
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| 56 | * Whether to show SQL/DB errors
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| 57 | *
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| 58 | * @since 0.71
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| 59 | * @access private
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| 60 | * @var bool
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| 61 | */
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| 62 | var $show_errors = false;
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| 63 |
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| 64 | /**
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| 65 | * Whether to suppress errors during the DB bootstrapping.
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| 66 | *
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| 67 | * @access private
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| 68 | * @since {@internal Version Unknown}}
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| 69 | * @var bool
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| 70 | */
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| 71 | var $suppress_errors = false;
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| 72 |
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| 73 | /**
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| 74 | * The last error during query.
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| 75 | *
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| 76 | * @since {@internal Version Unknown}}
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| 77 | * @var string
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| 78 | */
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| 79 | var $last_error = '';
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| 80 |
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| 81 | /**
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| 82 | * Amount of queries made
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| 83 | *
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| 84 | * @since 1.2.0
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| 85 | * @access private
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| 86 | * @var int
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| 87 | */
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| 88 | var $num_queries = 0;
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| 89 |
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| 90 | /**
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| 91 | * Saved result of the last query made
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| 92 | *
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| 93 | * @since 1.2.0
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| 94 | * @access private
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| 95 | * @var array
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| 96 | */
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| 97 | var $last_query;
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| 98 |
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| 99 | /**
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| 100 | * Saved info on the table column
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| 101 | *
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| 102 | * @since 1.2.0
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| 103 | * @access private
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| 104 | * @var array
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| 105 | */
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| 106 | var $col_info;
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| 107 |
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| 108 | /**
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| 109 | * Saved queries that were executed
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| 110 | *
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| 111 | * @since 1.5.0
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| 112 | * @access private
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| 113 | * @var array
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| 114 | */
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| 115 | var $queries;
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| 116 |
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| 117 | /**
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| 118 | * WordPress table prefix
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| 119 | *
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| 120 | * You can set this to have multiple WordPress installations
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| 121 | * in a single database. The second reason is for possible
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| 122 | * security precautions.
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| 123 | *
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| 124 | * @since 0.71
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| 125 | * @access private
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| 126 | * @var string
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| 127 | */
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| 128 | var $prefix = '';
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| 129 |
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| 130 | /**
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| 131 | * Whether the database queries are ready to start executing.
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| 132 | *
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| 133 | * @since 2.5.0
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| 134 | * @access private
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| 135 | * @var bool
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| 136 | */
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| 137 | var $ready = false;
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| 138 |
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| 139 | /**
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| 140 | * WordPress Posts table
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| 141 | *
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| 142 | * @since 1.5.0
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| 143 | * @access public
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| 144 | * @var string
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| 145 | */
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| 146 | var $posts;
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| 147 |
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| 148 | /**
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| 149 | * WordPress Users table
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| 150 | *
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| 151 | * @since 1.5.0
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| 152 | * @access public
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| 153 | * @var string
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| 154 | */
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| 155 | var $users;
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| 156 |
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| 157 | /**
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| 158 | * WordPress Categories table
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| 159 | *
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| 160 | * @since 1.5.0
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| 161 | * @access public
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| 162 | * @var string
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| 163 | */
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| 164 | var $categories;
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| 165 |
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| 166 | /**
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| 167 | * WordPress Post to Category table
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| 168 | *
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| 169 | * @since 1.5.0
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| 170 | * @access public
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| 171 | * @var string
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| 172 | */
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| 173 | var $post2cat;
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| 174 |
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| 175 | /**
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| 176 | * WordPress Comments table
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| 177 | *
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| 178 | * @since 1.5.0
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| 179 | * @access public
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| 180 | * @var string
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| 181 | */
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| 182 | var $comments;
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| 183 |
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| 184 | /**
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| 185 | * WordPress Links table
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| 186 | *
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| 187 | * @since 1.5.0
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| 188 | * @access public
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| 189 | * @var string
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| 190 | */
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| 191 | var $links;
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| 192 |
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| 193 | /**
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| 194 | * WordPress Options table
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| 195 | *
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| 196 | * @since 1.5.0
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| 197 | * @access public
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| 198 | * @var string
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| 199 | */
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| 200 | var $options;
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| 201 |
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| 202 | /**
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| 203 | * WordPress Post Metadata table
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| 204 | *
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| 205 | * @since {@internal Version Unknown}}
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| 206 | * @access public
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| 207 | * @var string
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| 208 | */
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| 209 | var $postmeta;
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| 210 |
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| 211 | /**
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| 212 | * WordPress User Metadata table
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| 213 | *
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| 214 | * @since 2.3.0
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| 215 | * @access public
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| 216 | * @var string
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| 217 | */
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| 218 | var $usermeta;
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| 219 |
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| 220 | /**
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| 221 | * WordPress Terms table
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| 222 | *
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| 223 | * @since 2.3.0
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| 224 | * @access public
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| 225 | * @var string
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| 226 | */
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| 227 | var $terms;
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| 228 |
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| 229 | /**
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| 230 | * WordPress Term Taxonomy table
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| 231 | *
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| 232 | * @since 2.3.0
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| 233 | * @access public
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| 234 | * @var string
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| 235 | */
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| 236 | var $term_taxonomy;
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| 237 |
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| 238 | /**
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| 239 | * WordPress Term Relationships table
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| 240 | *
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| 241 | * @since 2.3.0
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| 242 | * @access public
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| 243 | * @var string
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| 244 | */
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| 245 | var $term_relationships;
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| 246 |
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| 247 | /**
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| 248 | * List of WordPress tables
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| 249 | *
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| 250 | * @since {@internal Version Unknown}}
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| 251 | * @access private
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| 252 | * @var array
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| 253 | */
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| 254 | var $tables = array('users', 'usermeta', 'posts', 'categories', 'post2cat', 'comments', 'links', 'link2cat', 'options',
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| 255 | 'postmeta', 'terms', 'term_taxonomy', 'term_relationships');
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| 256 |
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| 257 | /**
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| 258 | * Format specifiers for DB columns. Columns not listed here default to %s. Initialized in wp-settings.php.
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| 259 | *
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| 260 | * Keys are colmn names, values are format types: 'ID' => '%d'
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| 261 | *
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| 262 | * @since 2.8.0
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| 263 | * @see wpdb:prepare()
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| 264 | * @see wpdb:insert()
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| 265 | * @see wpdb:update()
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| 266 | * @access public
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| 267 | * @war array
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| 268 | */
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| 269 | var $field_types = array();
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| 270 |
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| 271 | /**
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| 272 | * Database table columns charset
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| 273 | *
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| 274 | * @since 2.2.0
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| 275 | * @access public
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| 276 | * @var string
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| 277 | */
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| 278 | var $charset;
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| 279 |
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| 280 | /**
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| 281 | * Database table columns collate
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| 282 | *
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| 283 | * @since 2.2.0
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| 284 | * @access public
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| 285 | * @var string
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| 286 | */
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| 287 | var $collate;
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| 288 |
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| 289 | /**
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| 290 | * Whether to use mysql_real_escape_string
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| 291 | *
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| 292 | * @since 2.8.0
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| 293 | * @access public
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| 294 | * @var bool
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| 295 | */
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| 296 | var $real_escape = false;
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| 297 |
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| 298 | /**
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| 299 | * Connects to the database server and selects a database
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| 300 | *
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| 301 | * PHP4 compatibility layer for calling the PHP5 constructor.
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| 302 | *
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| 303 | * @uses wpdb::__construct() Passes parameters and returns result
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| 304 | * @since 0.71
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| 305 | *
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| 306 | * @param string $dbuser MySQL database user
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| 307 | * @param string $dbpassword MySQL database password
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| 308 | * @param string $dbname MySQL database name
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| 309 | * @param string $dbhost MySQL database host
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| 310 | */
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| 311 | function wpdb($dbuser, $dbpassword, $dbname, $dbhost) {
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| 312 | return $this->__construct($dbuser, $dbpassword, $dbname, $dbhost);
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| 313 | }
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| 314 |
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| 315 | /**
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| 316 | * Connects to the database server and selects a database
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| 317 | *
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| 318 | * PHP5 style constructor for compatibility with PHP5. Does
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| 319 | * the actual setting up of the class properties and connection
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| 320 | * to the database.
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| 321 | *
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| 322 | * @since 2.0.8
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| 323 | *
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| 324 | * @param string $dbuser MySQL database user
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| 325 | * @param string $dbpassword MySQL database password
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| 326 | * @param string $dbname MySQL database name
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| 327 | * @param string $dbhost MySQL database host
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| 328 | */
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| 329 | function __construct($dbuser, $dbpassword, $dbname, $dbhost) {
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| 330 | register_shutdown_function(array(&$this, "__destruct"));
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| 331 |
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| 332 | if ( defined('WP_DEBUG') and WP_DEBUG == true )
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| 333 | $this->show_errors();
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| 334 |
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| 335 | if ( defined('DB_CHARSET') )
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| 336 | $this->charset = DB_CHARSET;
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| 337 |
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| 338 | if ( defined('DB_COLLATE') )
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| 339 | $this->collate = DB_COLLATE;
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| 340 |
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| 341 | $this->dbh = @mysql_connect($dbhost, $dbuser, $dbpassword, true);
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| 342 | if (!$this->dbh) {
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| 343 | $this->bail(sprintf(/*WP_I18N_DB_CONN_ERROR*/'
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| 344 | <h1>Errore nello stabilire una connessione al database</h1>
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| 345 | <p>Ciò significa che le informazioni sul nome utente o sulla password presenti nel file <code>wp-config.php</code> non sono corrette o che non Ú possibile contattare il server del database a <code>%s</code>. Il che potrebbe voler dire che il database server del fornitore di hosting non Ú attivo.</p>
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| 346 | <ul>
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| 347 | <li>Si Ú sicuri di disporre del nome utente e della password corretti?</li>
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| 348 | <li>Si Ú sicuri di aver digitato correttamente il nome dell\'host?</li>
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| 349 | <li>Si Ú sicuri che il server del database sia funzionante?</li>
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| 350 | </ul>
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| 351 | <p>Nel caso non si abbia certezza sul significato di questi termini Ú opportuno contattare il proprio host. Se si ha bisogno di ulteriore aiuto Ú sempre possibile visitare il <a href=\'http://www.wordpress-it.it/forumt/\'>Forum di supporto italiano su WordPress</a>.</p>
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| 352 | '/*/WP_I18N_DB_CONN_ERROR*/, $dbhost));
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| 353 | return;
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| 354 | }
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| 355 |
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| 356 | $this->ready = true;
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| 357 |
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| 358 | if ( $this->has_cap( 'collation' ) ) {
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| 359 | if ( !empty($this->charset) ) {
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| 360 | if ( function_exists('mysql_set_charset') ) {
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| 361 | mysql_set_charset($this->charset, $this->dbh);
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| 362 | $this->real_escape = true;
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| 363 | } else {
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| 364 | $collation_query = "SET NAMES '{$this->charset}'";
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| 365 | if ( !empty($this->collate) )
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| 366 | $collation_query .= " COLLATE '{$this->collate}'";
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| 367 | $this->query($collation_query);
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| 368 | }
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| 369 | }
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| 370 | }
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| 371 |
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| 372 | $this->select($dbname);
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| 373 | }
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| 374 |
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| 375 | /**
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| 376 | * PHP5 style destructor and will run when database object is destroyed.
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| 377 | *
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| 378 | * @since 2.0.8
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| 379 | *
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| 380 | * @return bool Always true
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| 381 | */
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| 382 | function __destruct() {
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| 383 | return true;
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| 384 | }
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| 385 |
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| 386 | /**
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| 387 | * Sets the table prefix for the WordPress tables.
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| 388 | *
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| 389 | * Also allows for the CUSTOM_USER_TABLE and CUSTOM_USER_META_TABLE to
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| 390 | * override the WordPress users and usersmeta tables that would otherwise be determined by the $prefix.
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| 391 | *
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| 392 | * @since 2.5.0
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| 393 | *
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| 394 | * @param string $prefix Alphanumeric name for the new prefix.
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| 395 | * @return string|WP_Error Old prefix or WP_Error on error
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| 396 | */
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| 397 | function set_prefix($prefix) {
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| 398 |
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| 399 | if ( preg_match('|[^a-z0-9_]|i', $prefix) )
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| 400 | return new WP_Error('invalid_db_prefix', /*WP_I18N_DB_BAD_PREFIX*/'Prefisso database non valido'/*/WP_I18N_DB_BAD_PREFIX*/);
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| 401 |
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| 402 | $old_prefix = $this->prefix;
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| 403 | $this->prefix = $prefix;
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| 404 |
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| 405 | foreach ( (array) $this->tables as $table )
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| 406 | $this->$table = $this->prefix . $table;
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| 407 |
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| 408 | if ( defined('CUSTOM_USER_TABLE') )
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| 409 | $this->users = CUSTOM_USER_TABLE;
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| 410 |
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| 411 | if ( defined('CUSTOM_USER_META_TABLE') )
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| 412 | $this->usermeta = CUSTOM_USER_META_TABLE;
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| 413 |
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| 414 | return $old_prefix;
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| 415 | }
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| 416 |
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| 417 | /**
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| 418 | * Selects a database using the current database connection.
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| 419 | *
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| 420 | * The database name will be changed based on the current database
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| 421 | * connection. On failure, the execution will bail and display an DB error.
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| 422 | *
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| 423 | * @since 0.71
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| 424 | *
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| 425 | * @param string $db MySQL database name
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| 426 | * @return null Always null.
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| 427 | */
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| 428 | function select($db) {
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| 429 | if (!@mysql_select_db($db, $this->dbh)) {
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| 430 | $this->ready = false;
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| 431 | $this->bail(sprintf(/*WP_I18N_DB_SELECT_DB*/'
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| 432 | <h1>Impossibile selesionare il database</h1>
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| 433 | <p>È stato possibile connettersi al server del database (il che significa che il nome utente e la password sono ok) ma non Ú stato possibile selezionare il database <code>%1$s</code>.</p>
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| 434 | <ul>
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| 435 | <li>Si Ú certi che esista?</li>
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| 436 | <li>L\'utente <code>%2$s</code> ha i permessi di usare il database <code>%1$s</code>?</li>
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| 437 | <li>Su alcuni sistemi il nome del database va fatto precedere dal nome utente, così da avere un formato simile a username_wordpress. Potrebbe essere questo il problema?</li>
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| 438 | </ul>
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| 439 | <p>Se non si sa come impostare un database sarebbe opportuno <strong>contattare il proprio host</strong>. Se tutto questo fallisce Ú possibile trovare aiuto sul <a href=\'http://www.wordpress-it.it/forumt/\'>Forum di supporto italiano su WordPress</a>.</p>'/*/WP_I18N_DB_SELECT_DB*/, $db, DB_USER));
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| 440 | return;
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| 441 | }
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| 442 | }
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| 443 |
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| 444 | function _weak_escape($string) {
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| 445 | return addslashes($string);
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| 446 | }
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| 447 |
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| 448 | function _real_escape($string) {
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| 449 | if ( $this->dbh && $this->real_escape )
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| 450 | return mysql_real_escape_string( $string, $this->dbh );
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| 451 | else
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| 452 | return addslashes( $string );
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| 453 | }
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| 454 |
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| 455 | function _escape($data) {
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| 456 | if ( is_array($data) ) {
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| 457 | foreach ( (array) $data as $k => $v ) {
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| 458 | if ( is_array($v) )
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| 459 | $data[$k] = $this->_escape( $v );
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| 460 | else
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| 461 | $data[$k] = $this->_real_escape( $v );
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| 462 | }
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| 463 | } else {
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| 464 | $data = $this->_real_escape( $data );
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| 465 | }
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| 466 |
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| 467 | return $data;
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| 468 | }
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| 469 |
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| 470 | /**
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| 471 | * Escapes content for insertion into the database using addslashes(), for security
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| 472 | *
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| 473 | * @since 0.71
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| 474 | *
|
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| 475 | * @param string|array $data
|
---|
| 476 | * @return string query safe string
|
---|
| 477 | */
|
---|
| 478 | function escape($data) {
|
---|
| 479 | if ( is_array($data) ) {
|
---|
| 480 | foreach ( (array) $data as $k => $v ) {
|
---|
| 481 | if ( is_array($v) )
|
---|
| 482 | $data[$k] = $this->escape( $v );
|
---|
| 483 | else
|
---|
| 484 | $data[$k] = $this->_weak_escape( $v );
|
---|
| 485 | }
|
---|
| 486 | } else {
|
---|
| 487 | $data = $this->_weak_escape( $data );
|
---|
| 488 | }
|
---|
| 489 |
|
---|
| 490 | return $data;
|
---|
| 491 | }
|
---|
| 492 |
|
---|
| 493 | /**
|
---|
| 494 | * Escapes content by reference for insertion into the database, for security
|
---|
| 495 | *
|
---|
| 496 | * @since 2.3.0
|
---|
| 497 | *
|
---|
| 498 | * @param string $s
|
---|
| 499 | */
|
---|
| 500 | function escape_by_ref(&$string) {
|
---|
| 501 | $string = $this->_real_escape( $string );
|
---|
| 502 | }
|
---|
| 503 |
|
---|
| 504 | /**
|
---|
| 505 | * Prepares a SQL query for safe execution. Uses sprintf()-like syntax.
|
---|
| 506 | *
|
---|
| 507 | * This function only supports a small subset of the sprintf syntax; it only supports %d (decimal number), %s (string).
|
---|
| 508 | * Does not support sign, padding, alignment, width or precision specifiers.
|
---|
| 509 | * Does not support argument numbering/swapping.
|
---|
| 510 | *
|
---|
| 511 | * May be called like {@link http://php.net/sprintf sprintf()} or like {@link http://php.net/vsprintf vsprintf()}.
|
---|
| 512 | *
|
---|
| 513 | * Both %d and %s should be left unquoted in the query string.
|
---|
| 514 | *
|
---|
| 515 | * <code>
|
---|
| 516 | * wpdb::prepare( "SELECT * FROM `table` WHERE `column` = %s AND `field` = %d", "foo", 1337 )
|
---|
| 517 | * </code>
|
---|
| 518 | *
|
---|
| 519 | * @link http://php.net/sprintf Description of syntax.
|
---|
| 520 | * @since 2.3.0
|
---|
| 521 | *
|
---|
| 522 | * @param string $query Query statement with sprintf()-like placeholders
|
---|
| 523 | * @param array|mixed $args The array of variables to substitute into the query's placeholders if being called like {@link http://php.net/vsprintf vsprintf()}, or the first variable to substitute into the query's placeholders if being called like {@link http://php.net/sprintf sprintf()}.
|
---|
| 524 | * @param mixed $args,... further variables to substitute into the query's placeholders if being called like {@link http://php.net/sprintf sprintf()}.
|
---|
| 525 | * @return null|string Sanitized query string
|
---|
| 526 | */
|
---|
| 527 | function prepare($query = null) { // ( $query, *$args )
|
---|
| 528 | if ( is_null( $query ) )
|
---|
| 529 | return;
|
---|
| 530 | $args = func_get_args();
|
---|
| 531 | array_shift($args);
|
---|
| 532 | // If args were passed as an array (as in vsprintf), move them up
|
---|
| 533 | if ( isset($args[0]) && is_array($args[0]) )
|
---|
| 534 | $args = $args[0];
|
---|
| 535 | $query = str_replace("'%s'", '%s', $query); // in case someone mistakenly already singlequoted it
|
---|
| 536 | $query = str_replace('"%s"', '%s', $query); // doublequote unquoting
|
---|
| 537 | $query = str_replace('%s', "'%s'", $query); // quote the strings
|
---|
| 538 | array_walk($args, array(&$this, 'escape_by_ref'));
|
---|
| 539 | return @vsprintf($query, $args);
|
---|
| 540 | }
|
---|
| 541 |
|
---|
| 542 | /**
|
---|
| 543 | * Print SQL/DB error.
|
---|
| 544 | *
|
---|
| 545 | * @since 0.71
|
---|
| 546 | * @global array $EZSQL_ERROR Stores error information of query and error string
|
---|
| 547 | *
|
---|
| 548 | * @param string $str The error to display
|
---|
| 549 | * @return bool False if the showing of errors is disabled.
|
---|
| 550 | */
|
---|
| 551 | function print_error($str = '') {
|
---|
| 552 | global $EZSQL_ERROR;
|
---|
| 553 |
|
---|
| 554 | if (!$str) $str = mysql_error($this->dbh);
|
---|
| 555 | $EZSQL_ERROR[] = array ('query' => $this->last_query, 'error_str' => $str);
|
---|
| 556 |
|
---|
| 557 | if ( $this->suppress_errors )
|
---|
| 558 | return false;
|
---|
| 559 |
|
---|
| 560 | if ( $caller = $this->get_caller() )
|
---|
| 561 | $error_str = sprintf(/*WP_I18N_DB_QUERY_ERROR_FULL*/'WordPress errore sul database %1$s per la query %2$s fatta da %3$s'/*/WP_I18N_DB_QUERY_ERROR_FULL*/, $str, $this->last_query, $caller);
|
---|
| 562 | else
|
---|
| 563 | $error_str = sprintf(/*WP_I18N_DB_QUERY_ERROR*/'WordPress errore database %1$s per la query %2$s'/*/WP_I18N_DB_QUERY_ERROR*/, $str, $this->last_query);
|
---|
| 564 |
|
---|
| 565 | $log_error = true;
|
---|
| 566 | if ( ! function_exists('error_log') )
|
---|
| 567 | $log_error = false;
|
---|
| 568 |
|
---|
| 569 | $log_file = @ini_get('error_log');
|
---|
| 570 | if ( !empty($log_file) && ('syslog' != $log_file) && !@is_writable($log_file) )
|
---|
| 571 | $log_error = false;
|
---|
| 572 |
|
---|
| 573 | if ( $log_error )
|
---|
| 574 | @error_log($error_str, 0);
|
---|
| 575 |
|
---|
| 576 | // Is error output turned on or not..
|
---|
| 577 | if ( !$this->show_errors )
|
---|
| 578 | return false;
|
---|
| 579 |
|
---|
| 580 | $str = htmlspecialchars($str, ENT_QUOTES);
|
---|
| 581 | $query = htmlspecialchars($this->last_query, ENT_QUOTES);
|
---|
| 582 |
|
---|
| 583 | // If there is an error then take note of it
|
---|
| 584 | print "<div id='error'>
|
---|
| 585 | <p class='wpdberror'><strong>WordPress database error:</strong> [$str]<br />
|
---|
| 586 | <code>$query</code></p>
|
---|
| 587 | </div>";
|
---|
| 588 | }
|
---|
| 589 |
|
---|
| 590 | /**
|
---|
| 591 | * Enables showing of database errors.
|
---|
| 592 | *
|
---|
| 593 | * This function should be used only to enable showing of errors.
|
---|
| 594 | * wpdb::hide_errors() should be used instead for hiding of errors. However,
|
---|
| 595 | * this function can be used to enable and disable showing of database
|
---|
| 596 | * errors.
|
---|
| 597 | *
|
---|
| 598 | * @since 0.71
|
---|
| 599 | *
|
---|
| 600 | * @param bool $show Whether to show or hide errors
|
---|
| 601 | * @return bool Old value for showing errors.
|
---|
| 602 | */
|
---|
| 603 | function show_errors( $show = true ) {
|
---|
| 604 | $errors = $this->show_errors;
|
---|
| 605 | $this->show_errors = $show;
|
---|
| 606 | return $errors;
|
---|
| 607 | }
|
---|
| 608 |
|
---|
| 609 | /**
|
---|
| 610 | * Disables showing of database errors.
|
---|
| 611 | *
|
---|
| 612 | * @since 0.71
|
---|
| 613 | *
|
---|
| 614 | * @return bool Whether showing of errors was active or not
|
---|
| 615 | */
|
---|
| 616 | function hide_errors() {
|
---|
| 617 | $show = $this->show_errors;
|
---|
| 618 | $this->show_errors = false;
|
---|
| 619 | return $show;
|
---|
| 620 | }
|
---|
| 621 |
|
---|
| 622 | /**
|
---|
| 623 | * Whether to suppress database errors.
|
---|
| 624 | *
|
---|
| 625 | * @param unknown_type $suppress
|
---|
| 626 | * @return unknown
|
---|
| 627 | */
|
---|
| 628 | function suppress_errors( $suppress = true ) {
|
---|
| 629 | $errors = $this->suppress_errors;
|
---|
| 630 | $this->suppress_errors = $suppress;
|
---|
| 631 | return $errors;
|
---|
| 632 | }
|
---|
| 633 |
|
---|
| 634 | /**
|
---|
| 635 | * Kill cached query results.
|
---|
| 636 | *
|
---|
| 637 | * @since 0.71
|
---|
| 638 | */
|
---|
| 639 | function flush() {
|
---|
| 640 | $this->last_result = array();
|
---|
| 641 | $this->col_info = null;
|
---|
| 642 | $this->last_query = null;
|
---|
| 643 | }
|
---|
| 644 |
|
---|
| 645 | /**
|
---|
| 646 | * Perform a MySQL database query, using current database connection.
|
---|
| 647 | *
|
---|
| 648 | * More information can be found on the codex page.
|
---|
| 649 | *
|
---|
| 650 | * @since 0.71
|
---|
| 651 | *
|
---|
| 652 | * @param string $query
|
---|
| 653 | * @return int|false Number of rows affected/selected or false on error
|
---|
| 654 | */
|
---|
| 655 | function query($query) {
|
---|
| 656 | if ( ! $this->ready )
|
---|
| 657 | return false;
|
---|
| 658 |
|
---|
| 659 | // filter the query, if filters are available
|
---|
| 660 | // NOTE: some queries are made before the plugins have been loaded, and thus cannot be filtered with this method
|
---|
| 661 | if ( function_exists('apply_filters') )
|
---|
| 662 | $query = apply_filters('query', $query);
|
---|
| 663 |
|
---|
| 664 | // initialise return
|
---|
| 665 | $return_val = 0;
|
---|
| 666 | $this->flush();
|
---|
| 667 |
|
---|
| 668 | // Log how the function was called
|
---|
| 669 | $this->func_call = "\$db->query(\"$query\")";
|
---|
| 670 |
|
---|
| 671 | // Keep track of the last query for debug..
|
---|
| 672 | $this->last_query = $query;
|
---|
| 673 |
|
---|
| 674 | // Perform the query via std mysql_query function..
|
---|
| 675 | if ( defined('SAVEQUERIES') && SAVEQUERIES )
|
---|
| 676 | $this->timer_start();
|
---|
| 677 |
|
---|
| 678 | $this->result = @mysql_query($query, $this->dbh);
|
---|
| 679 | ++$this->num_queries;
|
---|
| 680 |
|
---|
| 681 | if ( defined('SAVEQUERIES') && SAVEQUERIES )
|
---|
| 682 | $this->queries[] = array( $query, $this->timer_stop(), $this->get_caller() );
|
---|
| 683 |
|
---|
| 684 | // If there is an error then take note of it..
|
---|
| 685 | if ( $this->last_error = mysql_error($this->dbh) ) {
|
---|
| 686 | $this->print_error();
|
---|
| 687 | return false;
|
---|
| 688 | }
|
---|
| 689 |
|
---|
| 690 | if ( preg_match("/^\\s*(insert|delete|update|replace|alter) /i",$query) ) {
|
---|
| 691 | $this->rows_affected = mysql_affected_rows($this->dbh);
|
---|
| 692 | // Take note of the insert_id
|
---|
| 693 | if ( preg_match("/^\\s*(insert|replace) /i",$query) ) {
|
---|
| 694 | $this->insert_id = mysql_insert_id($this->dbh);
|
---|
| 695 | }
|
---|
| 696 | // Return number of rows affected
|
---|
| 697 | $return_val = $this->rows_affected;
|
---|
| 698 | } else {
|
---|
| 699 | $i = 0;
|
---|
| 700 | while ($i < @mysql_num_fields($this->result)) {
|
---|
| 701 | $this->col_info[$i] = @mysql_fetch_field($this->result);
|
---|
| 702 | $i++;
|
---|
| 703 | }
|
---|
| 704 | $num_rows = 0;
|
---|
| 705 | while ( $row = @mysql_fetch_object($this->result) ) {
|
---|
| 706 | $this->last_result[$num_rows] = $row;
|
---|
| 707 | $num_rows++;
|
---|
| 708 | }
|
---|
| 709 |
|
---|
| 710 | @mysql_free_result($this->result);
|
---|
| 711 |
|
---|
| 712 | // Log number of rows the query returned
|
---|
| 713 | $this->num_rows = $num_rows;
|
---|
| 714 |
|
---|
| 715 | // Return number of rows selected
|
---|
| 716 | $return_val = $this->num_rows;
|
---|
| 717 | }
|
---|
| 718 |
|
---|
| 719 | return $return_val;
|
---|
| 720 | }
|
---|
| 721 |
|
---|
| 722 | /**
|
---|
| 723 | * Insert a row into a table.
|
---|
| 724 | *
|
---|
| 725 | * <code>
|
---|
| 726 | * wpdb::insert( 'table', array( 'column' => 'foo', 'field' => 1337 ), array( '%s', '%d' ) )
|
---|
| 727 | * </code>
|
---|
| 728 | *
|
---|
| 729 | * @since 2.5.0
|
---|
| 730 | * @see wpdb::prepare()
|
---|
| 731 | *
|
---|
| 732 | * @param string $table table name
|
---|
| 733 | * @param array $data Data to insert (in column => value pairs). Both $data columns and $data values should be "raw" (neither should be SQL escaped).
|
---|
| 734 | * @param array|string $format (optional) An array of formats to be mapped to each of the value in $data. If string, that format will be used for all of the values in $data. A format is one of '%d', '%s' (decimal number, string). If omitted, all values in $data will be treated as strings.
|
---|
| 735 | * @return int|false The number of rows inserted, or false on error.
|
---|
| 736 | */
|
---|
| 737 | function insert($table, $data, $format = null) {
|
---|
| 738 | $formats = $format = (array) $format;
|
---|
| 739 | $fields = array_keys($data);
|
---|
| 740 | $formatted_fields = array();
|
---|
| 741 | foreach ( $fields as $field ) {
|
---|
| 742 | if ( !empty($format) )
|
---|
| 743 | $form = ( $form = array_shift($formats) ) ? $form : $format[0];
|
---|
| 744 | elseif ( isset($this->field_types[$field]) )
|
---|
| 745 | $form = $this->field_types[$field];
|
---|
| 746 | else
|
---|
| 747 | $form = '%s';
|
---|
| 748 | $formatted_fields[] = $form;
|
---|
| 749 | }
|
---|
| 750 | $sql = "INSERT INTO `$table` (`" . implode( '`,`', $fields ) . "`) VALUES ('" . implode( "','", $formatted_fields ) . "')";
|
---|
| 751 | return $this->query( $this->prepare( $sql, $data) );
|
---|
| 752 | }
|
---|
| 753 |
|
---|
| 754 |
|
---|
| 755 | /**
|
---|
| 756 | * Update a row in the table
|
---|
| 757 | *
|
---|
| 758 | * <code>
|
---|
| 759 | * wpdb::update( 'table', array( 'column' => 'foo', 'field' => 1337 ), array( 'ID' => 1 ), array( '%s', '%d' ), array( '%d' ) )
|
---|
| 760 | * </code>
|
---|
| 761 | *
|
---|
| 762 | * @since 2.5.0
|
---|
| 763 | * @see wpdb::prepare()
|
---|
| 764 | *
|
---|
| 765 | * @param string $table table name
|
---|
| 766 | * @param array $data Data to update (in column => value pairs). Both $data columns and $data values should be "raw" (neither should be SQL escaped).
|
---|
| 767 | * @param array $where A named array of WHERE clauses (in column => value pairs). Multiple clauses will be joined with ANDs. Both $where columns and $where values should be "raw".
|
---|
| 768 | * @param array|string $format (optional) An array of formats to be mapped to each of the values in $data. If string, that format will be used for all of the values in $data. A format is one of '%d', '%s' (decimal number, string). If omitted, all values in $data will be treated as strings.
|
---|
| 769 | * @param array|string $format_where (optional) An array of formats to be mapped to each of the values in $where. If string, that format will be used for all of the items in $where. A format is one of '%d', '%s' (decimal number, string). If omitted, all values in $where will be treated as strings.
|
---|
| 770 | * @return int|false The number of rows updated, or false on error.
|
---|
| 771 | */
|
---|
| 772 | function update($table, $data, $where, $format = null, $where_format = null) {
|
---|
| 773 | if ( !is_array( $where ) )
|
---|
| 774 | return false;
|
---|
| 775 |
|
---|
| 776 | $formats = $format = (array) $format;
|
---|
| 777 | $bits = $wheres = array();
|
---|
| 778 | foreach ( (array) array_keys($data) as $field ) {
|
---|
| 779 | if ( !empty($format) )
|
---|
| 780 | $form = ( $form = array_shift($formats) ) ? $form : $format[0];
|
---|
| 781 | elseif ( isset($this->field_types[$field]) )
|
---|
| 782 | $form = $this->field_types[$field];
|
---|
| 783 | else
|
---|
| 784 | $form = '%s';
|
---|
| 785 | $bits[] = "`$field` = {$form}";
|
---|
| 786 | }
|
---|
| 787 |
|
---|
| 788 | $where_formats = $where_format = (array) $where_format;
|
---|
| 789 | foreach ( (array) array_keys($where) as $field ) {
|
---|
| 790 | if ( !empty($where_format) )
|
---|
| 791 | $form = ( $form = array_shift($where_formats) ) ? $form : $where_format[0];
|
---|
| 792 | elseif ( isset($this->field_types[$field]) )
|
---|
| 793 | $form = $this->field_types[$field];
|
---|
| 794 | else
|
---|
| 795 | $form = '%s';
|
---|
| 796 | $wheres[] = "`$field` = {$form}";
|
---|
| 797 | }
|
---|
| 798 |
|
---|
| 799 | $sql = "UPDATE `$table` SET " . implode( ', ', $bits ) . ' WHERE ' . implode( ' AND ', $wheres );
|
---|
| 800 | return $this->query( $this->prepare( $sql, array_merge(array_values($data), array_values($where))) );
|
---|
| 801 | }
|
---|
| 802 |
|
---|
| 803 | /**
|
---|
| 804 | * Retrieve one variable from the database.
|
---|
| 805 | *
|
---|
| 806 | * Executes a SQL query and returns the value from the SQL result.
|
---|
| 807 | * If the SQL result contains more than one column and/or more than one row, this function returns the value in the column and row specified.
|
---|
| 808 | * If $query is null, this function returns the value in the specified column and row from the previous SQL result.
|
---|
| 809 | *
|
---|
| 810 | * @since 0.71
|
---|
| 811 | *
|
---|
| 812 | * @param string|null $query SQL query. If null, use the result from the previous query.
|
---|
| 813 | * @param int $x (optional) Column of value to return. Indexed from 0.
|
---|
| 814 | * @param int $y (optional) Row of value to return. Indexed from 0.
|
---|
| 815 | * @return string Database query result
|
---|
| 816 | */
|
---|
| 817 | function get_var($query=null, $x = 0, $y = 0) {
|
---|
| 818 | $this->func_call = "\$db->get_var(\"$query\",$x,$y)";
|
---|
| 819 | if ( $query )
|
---|
| 820 | $this->query($query);
|
---|
| 821 |
|
---|
| 822 | // Extract var out of cached results based x,y vals
|
---|
| 823 | if ( !empty( $this->last_result[$y] ) ) {
|
---|
| 824 | $values = array_values(get_object_vars($this->last_result[$y]));
|
---|
| 825 | }
|
---|
| 826 |
|
---|
| 827 | // If there is a value return it else return null
|
---|
| 828 | return (isset($values[$x]) && $values[$x]!=='') ? $values[$x] : null;
|
---|
| 829 | }
|
---|
| 830 |
|
---|
| 831 | /**
|
---|
| 832 | * Retrieve one row from the database.
|
---|
| 833 | *
|
---|
| 834 | * Executes a SQL query and returns the row from the SQL result.
|
---|
| 835 | *
|
---|
| 836 | * @since 0.71
|
---|
| 837 | *
|
---|
| 838 | * @param string|null $query SQL query.
|
---|
| 839 | * @param string $output (optional) one of ARRAY_A | ARRAY_N | OBJECT constants. Return an associative array (column => value, ...), a numerically indexed array (0 => value, ...) or an object ( ->column = value ), respectively.
|
---|
| 840 | * @param int $y (optional) Row to return. Indexed from 0.
|
---|
| 841 | * @return mixed Database query result in format specifed by $output
|
---|
| 842 | */
|
---|
| 843 | function get_row($query = null, $output = OBJECT, $y = 0) {
|
---|
| 844 | $this->func_call = "\$db->get_row(\"$query\",$output,$y)";
|
---|
| 845 | if ( $query )
|
---|
| 846 | $this->query($query);
|
---|
| 847 | else
|
---|
| 848 | return null;
|
---|
| 849 |
|
---|
| 850 | if ( !isset($this->last_result[$y]) )
|
---|
| 851 | return null;
|
---|
| 852 |
|
---|
| 853 | if ( $output == OBJECT ) {
|
---|
| 854 | return $this->last_result[$y] ? $this->last_result[$y] : null;
|
---|
| 855 | } elseif ( $output == ARRAY_A ) {
|
---|
| 856 | return $this->last_result[$y] ? get_object_vars($this->last_result[$y]) : null;
|
---|
| 857 | } elseif ( $output == ARRAY_N ) {
|
---|
| 858 | return $this->last_result[$y] ? array_values(get_object_vars($this->last_result[$y])) : null;
|
---|
| 859 | } else {
|
---|
| 860 | $this->print_error(/*WP_I18N_DB_GETROW_ERROR*/' $db->get_row(string query, output type, int offset) -- Il risultato deve essere uno fra questi: OBJECT, ARRAY_A, ARRAY_N'/*/WP_I18N_DB_GETROW_ERROR*/);
|
---|
| 861 | }
|
---|
| 862 | }
|
---|
| 863 |
|
---|
| 864 | /**
|
---|
| 865 | * Retrieve one column from the database.
|
---|
| 866 | *
|
---|
| 867 | * Executes a SQL query and returns the column from the SQL result.
|
---|
| 868 | * If the SQL result contains more than one column, this function returns the column specified.
|
---|
| 869 | * If $query is null, this function returns the specified column from the previous SQL result.
|
---|
| 870 | *
|
---|
| 871 | * @since 0.71
|
---|
| 872 | *
|
---|
| 873 | * @param string|null $query SQL query. If null, use the result from the previous query.
|
---|
| 874 | * @param int $x Column to return. Indexed from 0.
|
---|
| 875 | * @return array Database query result. Array indexed from 0 by SQL result row number.
|
---|
| 876 | */
|
---|
| 877 | function get_col($query = null , $x = 0) {
|
---|
| 878 | if ( $query )
|
---|
| 879 | $this->query($query);
|
---|
| 880 |
|
---|
| 881 | $new_array = array();
|
---|
| 882 | // Extract the column values
|
---|
| 883 | for ( $i=0; $i < count($this->last_result); $i++ ) {
|
---|
| 884 | $new_array[$i] = $this->get_var(null, $x, $i);
|
---|
| 885 | }
|
---|
| 886 | return $new_array;
|
---|
| 887 | }
|
---|
| 888 |
|
---|
| 889 | /**
|
---|
| 890 | * Retrieve an entire SQL result set from the database (i.e., many rows)
|
---|
| 891 | *
|
---|
| 892 | * Executes a SQL query and returns the entire SQL result.
|
---|
| 893 | *
|
---|
| 894 | * @since 0.71
|
---|
| 895 | *
|
---|
| 896 | * @param string $query SQL query.
|
---|
| 897 | * @param string $output (optional) ane of ARRAY_A | ARRAY_N | OBJECT | OBJECT_K constants. With one of the first three, return an array of rows indexed from 0 by SQL result row number. Each row is an associative array (column => value, ...), a numerically indexed array (0 => value, ...), or an object. ( ->column = value ), respectively. With OBJECT_K, return an associative array of row objects keyed by the value of each row's first column's value. Duplicate keys are discarded.
|
---|
| 898 | * @return mixed Database query results
|
---|
| 899 | */
|
---|
| 900 | function get_results($query = null, $output = OBJECT) {
|
---|
| 901 | $this->func_call = "\$db->get_results(\"$query\", $output)";
|
---|
| 902 |
|
---|
| 903 | if ( $query )
|
---|
| 904 | $this->query($query);
|
---|
| 905 | else
|
---|
| 906 | return null;
|
---|
| 907 |
|
---|
| 908 | if ( $output == OBJECT ) {
|
---|
| 909 | // Return an integer-keyed array of row objects
|
---|
| 910 | return $this->last_result;
|
---|
| 911 | } elseif ( $output == OBJECT_K ) {
|
---|
| 912 | // Return an array of row objects with keys from column 1
|
---|
| 913 | // (Duplicates are discarded)
|
---|
| 914 | foreach ( $this->last_result as $row ) {
|
---|
| 915 | $key = array_shift( get_object_vars( $row ) );
|
---|
| 916 | if ( !isset( $new_array[ $key ] ) )
|
---|
| 917 | $new_array[ $key ] = $row;
|
---|
| 918 | }
|
---|
| 919 | return $new_array;
|
---|
| 920 | } elseif ( $output == ARRAY_A || $output == ARRAY_N ) {
|
---|
| 921 | // Return an integer-keyed array of...
|
---|
| 922 | if ( $this->last_result ) {
|
---|
| 923 | $i = 0;
|
---|
| 924 | foreach( (array) $this->last_result as $row ) {
|
---|
| 925 | if ( $output == ARRAY_N ) {
|
---|
| 926 | // ...integer-keyed row arrays
|
---|
| 927 | $new_array[$i] = array_values( get_object_vars( $row ) );
|
---|
| 928 | } else {
|
---|
| 929 | // ...column name-keyed row arrays
|
---|
| 930 | $new_array[$i] = get_object_vars( $row );
|
---|
| 931 | }
|
---|
| 932 | ++$i;
|
---|
| 933 | }
|
---|
| 934 | return $new_array;
|
---|
| 935 | }
|
---|
| 936 | }
|
---|
| 937 | }
|
---|
| 938 |
|
---|
| 939 | /**
|
---|
| 940 | * Retrieve column metadata from the last query.
|
---|
| 941 | *
|
---|
| 942 | * @since 0.71
|
---|
| 943 | *
|
---|
| 944 | * @param string $info_type one of name, table, def, max_length, not_null, primary_key, multiple_key, unique_key, numeric, blob, type, unsigned, zerofill
|
---|
| 945 | * @param int $col_offset 0: col name. 1: which table the col's in. 2: col's max length. 3: if the col is numeric. 4: col's type
|
---|
| 946 | * @return mixed Column Results
|
---|
| 947 | */
|
---|
| 948 | function get_col_info($info_type = 'name', $col_offset = -1) {
|
---|
| 949 | if ( $this->col_info ) {
|
---|
| 950 | if ( $col_offset == -1 ) {
|
---|
| 951 | $i = 0;
|
---|
| 952 | foreach( (array) $this->col_info as $col ) {
|
---|
| 953 | $new_array[$i] = $col->{$info_type};
|
---|
| 954 | $i++;
|
---|
| 955 | }
|
---|
| 956 | return $new_array;
|
---|
| 957 | } else {
|
---|
| 958 | return $this->col_info[$col_offset]->{$info_type};
|
---|
| 959 | }
|
---|
| 960 | }
|
---|
| 961 | }
|
---|
| 962 |
|
---|
| 963 | /**
|
---|
| 964 | * Starts the timer, for debugging purposes.
|
---|
| 965 | *
|
---|
| 966 | * @since 1.5.0
|
---|
| 967 | *
|
---|
| 968 | * @return true
|
---|
| 969 | */
|
---|
| 970 | function timer_start() {
|
---|
| 971 | $mtime = microtime();
|
---|
| 972 | $mtime = explode(' ', $mtime);
|
---|
| 973 | $this->time_start = $mtime[1] + $mtime[0];
|
---|
| 974 | return true;
|
---|
| 975 | }
|
---|
| 976 |
|
---|
| 977 | /**
|
---|
| 978 | * Stops the debugging timer.
|
---|
| 979 | *
|
---|
| 980 | * @since 1.5.0
|
---|
| 981 | *
|
---|
| 982 | * @return int Total time spent on the query, in milliseconds
|
---|
| 983 | */
|
---|
| 984 | function timer_stop() {
|
---|
| 985 | $mtime = microtime();
|
---|
| 986 | $mtime = explode(' ', $mtime);
|
---|
| 987 | $time_end = $mtime[1] + $mtime[0];
|
---|
| 988 | $time_total = $time_end - $this->time_start;
|
---|
| 989 | return $time_total;
|
---|
| 990 | }
|
---|
| 991 |
|
---|
| 992 | /**
|
---|
| 993 | * Wraps errors in a nice header and footer and dies.
|
---|
| 994 | *
|
---|
| 995 | * Will not die if wpdb::$show_errors is true
|
---|
| 996 | *
|
---|
| 997 | * @since 1.5.0
|
---|
| 998 | *
|
---|
| 999 | * @param string $message
|
---|
| 1000 | * @return false|void
|
---|
| 1001 | */
|
---|
| 1002 | function bail($message) {
|
---|
| 1003 | if ( !$this->show_errors ) {
|
---|
| 1004 | if ( class_exists('WP_Error') )
|
---|
| 1005 | $this->error = new WP_Error('500', $message);
|
---|
| 1006 | else
|
---|
| 1007 | $this->error = $message;
|
---|
| 1008 | return false;
|
---|
| 1009 | }
|
---|
| 1010 | wp_die($message);
|
---|
| 1011 | }
|
---|
| 1012 |
|
---|
| 1013 | /**
|
---|
| 1014 | * Whether or not MySQL database is at least the required minimum version.
|
---|
| 1015 | *
|
---|
| 1016 | * @since 2.5.0
|
---|
| 1017 | * @uses $wp_version
|
---|
| 1018 | *
|
---|
| 1019 | * @return WP_Error
|
---|
| 1020 | */
|
---|
| 1021 | function check_database_version()
|
---|
| 1022 | {
|
---|
| 1023 | global $wp_version;
|
---|
| 1024 | // Make sure the server has MySQL 4.0
|
---|
| 1025 | if ( version_compare($this->db_version(), '4.0.0', '<') )
|
---|
| 1026 | return new WP_Error('database_version',sprintf(__('<strong>ERROR</strong>: WordPress %s requires MySQL 4.0.0 or higher'), $wp_version));
|
---|
| 1027 | }
|
---|
| 1028 |
|
---|
| 1029 | /**
|
---|
| 1030 | * Whether of not the database supports collation.
|
---|
| 1031 | *
|
---|
| 1032 | * Called when WordPress is generating the table scheme.
|
---|
| 1033 | *
|
---|
| 1034 | * @since 2.5.0
|
---|
| 1035 | *
|
---|
| 1036 | * @return bool True if collation is supported, false if version does not
|
---|
| 1037 | */
|
---|
| 1038 | function supports_collation()
|
---|
| 1039 | {
|
---|
| 1040 | return $this->has_cap( 'collation' );
|
---|
| 1041 | }
|
---|
| 1042 |
|
---|
| 1043 | /**
|
---|
| 1044 | * Generic function to determine if a database supports a particular feature
|
---|
| 1045 | * @param string $db_cap the feature
|
---|
| 1046 | * @param false|string|resource $dbh_or_table (not implemented) Which database to test. False = the currently selected database, string = the database containing the specified table, resource = the database corresponding to the specified mysql resource.
|
---|
| 1047 | * @return bool
|
---|
| 1048 | */
|
---|
| 1049 | function has_cap( $db_cap ) {
|
---|
| 1050 | $version = $this->db_version();
|
---|
| 1051 |
|
---|
| 1052 | switch ( strtolower( $db_cap ) ) :
|
---|
| 1053 | case 'collation' : // @since 2.5.0
|
---|
| 1054 | case 'group_concat' : // @since 2.7
|
---|
| 1055 | case 'subqueries' : // @since 2.7
|
---|
| 1056 | return version_compare($version, '4.1', '>=');
|
---|
| 1057 | break;
|
---|
| 1058 | endswitch;
|
---|
| 1059 |
|
---|
| 1060 | return false;
|
---|
| 1061 | }
|
---|
| 1062 |
|
---|
| 1063 | /**
|
---|
| 1064 | * Retrieve the name of the function that called wpdb.
|
---|
| 1065 | *
|
---|
| 1066 | * Requires PHP 4.3 and searches up the list of functions until it reaches
|
---|
| 1067 | * the one that would most logically had called this method.
|
---|
| 1068 | *
|
---|
| 1069 | * @since 2.5.0
|
---|
| 1070 | *
|
---|
| 1071 | * @return string The name of the calling function
|
---|
| 1072 | */
|
---|
| 1073 | function get_caller() {
|
---|
| 1074 | // requires PHP 4.3+
|
---|
| 1075 | if ( !is_callable('debug_backtrace') )
|
---|
| 1076 | return '';
|
---|
| 1077 |
|
---|
| 1078 | $bt = debug_backtrace();
|
---|
| 1079 | $caller = array();
|
---|
| 1080 |
|
---|
| 1081 | $bt = array_reverse( $bt );
|
---|
| 1082 | foreach ( (array) $bt as $call ) {
|
---|
| 1083 | if ( @$call['class'] == __CLASS__ )
|
---|
| 1084 | continue;
|
---|
| 1085 | $function = $call['function'];
|
---|
| 1086 | if ( isset( $call['class'] ) )
|
---|
| 1087 | $function = $call['class'] . "->$function";
|
---|
| 1088 | $caller[] = $function;
|
---|
| 1089 | }
|
---|
| 1090 | $caller = join( ', ', $caller );
|
---|
| 1091 |
|
---|
| 1092 | return $caller;
|
---|
| 1093 | }
|
---|
| 1094 |
|
---|
| 1095 | /**
|
---|
| 1096 | * The database version number
|
---|
| 1097 | * @param false|string|resource $dbh_or_table (not implemented) Which database to test. False = the currently selected database, string = the database containing the specified table, resource = the database corresponding to the specified mysql resource.
|
---|
| 1098 | * @return false|string false on failure, version number on success
|
---|
| 1099 | */
|
---|
| 1100 | function db_version() {
|
---|
| 1101 | return preg_replace('/[^0-9.].*/', '', mysql_get_server_info( $this->dbh ));
|
---|
| 1102 | }
|
---|
| 1103 | }
|
---|
| 1104 |
|
---|
| 1105 | if ( ! isset($wpdb) ) {
|
---|
| 1106 | /**
|
---|
| 1107 | * WordPress Database Object, if it isn't set already in wp-content/db.php
|
---|
| 1108 | * @global object $wpdb Creates a new wpdb object based on wp-config.php Constants for the database
|
---|
| 1109 | * @since 0.71
|
---|
| 1110 | */
|
---|
| 1111 | $wpdb = new wpdb(DB_USER, DB_PASSWORD, DB_NAME, DB_HOST);
|
---|
| 1112 | }
|
---|
| 1113 | ?>
|
---|