|
<?php |
|
/** |
|
* MySQLi Extension DB Class |
|
* |
|
* This port of the wpdb WordPress Database Class uses the mysqli PHP extension |
|
* in order to allow for using the mysqlnd driver. |
|
* |
|
* Code uses r8265 of WordPress Trunk |
|
* |
|
* @author Modified by Jacob Santos <plugin-dev@santosj.name> |
|
*/ |
|
|
|
/* |
|
* Make sure the mysqli extension is installed. |
|
* |
|
* If it is not, then require the WordPress wpdb class file. |
|
*/ |
|
if( !function_exists('mysqli_connect') ) { |
|
require ABSPATH . WPINC . '/wp-db.php'; |
|
} |
|
|
|
if( function_exists('mysqli_connect') ) : |
|
|
|
/** |
|
* @since 0.71 |
|
*/ |
|
define('EZSQL_VERSION', 'WP1.25'); |
|
|
|
/** |
|
* @since 0.71 |
|
*/ |
|
define('OBJECT', 'OBJECT', true); |
|
|
|
/** |
|
* @since {@internal Version Unknown}} |
|
*/ |
|
define('OBJECT_K', 'OBJECT_K', false); |
|
|
|
/** |
|
* @since 0.71 |
|
*/ |
|
define('ARRAY_A', 'ARRAY_A', false); |
|
|
|
/** |
|
* @since 0.71 |
|
*/ |
|
define('ARRAY_N', 'ARRAY_N', false); |
|
|
|
/** |
|
* WordPress Database Access Abstraction Object |
|
* |
|
* It is possible to replace this class with your own |
|
* by setting the $wpdb global variable in wp-content/wpdb.php |
|
* file with your class. You can name it wpdb also, since |
|
* this file will not be included, if the other file is |
|
* available. |
|
* |
|
* @link http://codex.wordpress.org/Function_Reference/wpdb_Class |
|
* |
|
* @package WordPress |
|
* @subpackage Database |
|
* @since 0.71 |
|
* @final |
|
*/ |
|
class wpdb { |
|
|
|
/** |
|
* Whether to show SQL/DB errors |
|
* |
|
* @since 0.71 |
|
* @access private |
|
* @var bool |
|
*/ |
|
var $show_errors = false; |
|
|
|
/** |
|
* Whether to suppress errors during the DB bootstrapping. |
|
* |
|
* @access private |
|
* @since {@internal Version Unknown}} |
|
* @var bool |
|
*/ |
|
var $suppress_errors = false; |
|
|
|
/** |
|
* The last error during query. |
|
* |
|
* @since {@internal Version Unknown}} |
|
* @var string |
|
*/ |
|
var $last_error = ''; |
|
|
|
/** |
|
* Amount of queries made |
|
* |
|
* @since 1.2.0 |
|
* @access private |
|
* @var int |
|
*/ |
|
var $num_queries = 0; |
|
|
|
/** |
|
* Saved result of the last query made |
|
* |
|
* @since 1.2.0 |
|
* @access private |
|
* @var array |
|
*/ |
|
var $last_query; |
|
|
|
/** |
|
* Saved info on the table column |
|
* |
|
* @since 1.2.0 |
|
* @access private |
|
* @var array |
|
*/ |
|
var $col_info; |
|
|
|
/** |
|
* Saved queries that were executed |
|
* |
|
* @since 1.5.0 |
|
* @access private |
|
* @var array |
|
*/ |
|
var $queries; |
|
|
|
/** |
|
* WordPress table prefix |
|
* |
|
* You can set this to have multiple WordPress installations |
|
* in a single database. The second reason is for possible |
|
* security precautions. |
|
* |
|
* @since 0.71 |
|
* @access private |
|
* @var string |
|
*/ |
|
var $prefix = ''; |
|
|
|
/** |
|
* Whether the database queries are ready to start executing. |
|
* |
|
* @since 2.5.0 |
|
* @access private |
|
* @var bool |
|
*/ |
|
var $ready = false; |
|
|
|
/** |
|
* WordPress Posts table |
|
* |
|
* @since 1.5.0 |
|
* @access public |
|
* @var string |
|
*/ |
|
var $posts; |
|
|
|
/** |
|
* WordPress Users table |
|
* |
|
* @since 1.5.0 |
|
* @access public |
|
* @var string |
|
*/ |
|
var $users; |
|
|
|
/** |
|
* WordPress Categories table |
|
* |
|
* @since 1.5.0 |
|
* @access public |
|
* @var string |
|
*/ |
|
var $categories; |
|
|
|
/** |
|
* WordPress Post to Category table |
|
* |
|
* @since 1.5.0 |
|
* @access public |
|
* @var string |
|
*/ |
|
var $post2cat; |
|
|
|
/** |
|
* WordPress Comments table |
|
* |
|
* @since 1.5.0 |
|
* @access public |
|
* @var string |
|
*/ |
|
var $comments; |
|
|
|
/** |
|
* WordPress Links table |
|
* |
|
* @since 1.5.0 |
|
* @access public |
|
* @var string |
|
*/ |
|
var $links; |
|
|
|
/** |
|
* WordPress Options table |
|
* |
|
* @since 1.5.0 |
|
* @access public |
|
* @var string |
|
*/ |
|
var $options; |
|
|
|
/** |
|
* WordPress Post Metadata table |
|
* |
|
* @since {@internal Version Unknown}} |
|
* @access public |
|
* @var string |
|
*/ |
|
var $postmeta; |
|
|
|
/** |
|
* WordPress User Metadata table |
|
* |
|
* @since 2.3.0 |
|
* @access public |
|
* @var string |
|
*/ |
|
var $usermeta; |
|
|
|
/** |
|
* WordPress Terms table |
|
* |
|
* @since 2.3.0 |
|
* @access public |
|
* @var string |
|
*/ |
|
var $terms; |
|
|
|
/** |
|
* WordPress Term Taxonomy table |
|
* |
|
* @since 2.3.0 |
|
* @access public |
|
* @var string |
|
*/ |
|
var $term_taxonomy; |
|
|
|
/** |
|
* WordPress Term Relationships table |
|
* |
|
* @since 2.3.0 |
|
* @access public |
|
* @var string |
|
*/ |
|
var $term_relationships; |
|
|
|
/** |
|
* List of WordPress tables |
|
* |
|
* @since {@internal Version Unknown}} |
|
* @access private |
|
* @var array |
|
*/ |
|
var $tables = array('users', 'usermeta', 'posts', 'categories', 'post2cat', 'comments', 'links', 'link2cat', 'options', |
|
'postmeta', 'terms', 'term_taxonomy', 'term_relationships'); |
|
var $ms_global_tables = array( 'blogs', 'signups', 'site', 'sitemeta', |
|
'sitecategories', 'registration_log', 'blog_versions' ); |
|
/** |
|
* Database table columns charset |
|
* |
|
* @since 2.2.0 |
|
* @access public |
|
* @var string |
|
*/ |
|
var $charset; |
|
|
|
/** |
|
* Database table columns collate |
|
* |
|
* @since 2.2.0 |
|
* @access public |
|
* @var string |
|
*/ |
|
var $collate; |
|
|
|
/** |
|
* Connects to the database server and selects a database |
|
* |
|
* PHP4 compatibility layer for calling the PHP5 constructor. |
|
* |
|
* @uses wpdb::__construct() Passes parameters and returns result |
|
* @since 0.71 |
|
* |
|
* @param string $dbuser MySQL database user |
|
* @param string $dbpassword MySQL database password |
|
* @param string $dbname MySQL database name |
|
* @param string $dbhost MySQL database host |
|
*/ |
|
function wpdb($dbuser, $dbpassword, $dbname, $dbhost) { |
|
return $this->__construct($dbuser, $dbpassword, $dbname, $dbhost); |
|
} |
|
|
|
/** |
|
* Connects to the database server and selects a database |
|
* |
|
* PHP5 style constructor for compatibility with PHP5. Does |
|
* the actual setting up of the class properties and connection |
|
* to the database. |
|
* |
|
* @since 2.0.8 |
|
* |
|
* @param string $dbuser MySQL database user |
|
* @param string $dbpassword MySQL database password |
|
* @param string $dbname MySQL database name |
|
* @param string $dbhost MySQL database host |
|
*/ |
|
function __construct($dbuser, $dbpassword, $dbname, $dbhost) { |
|
register_shutdown_function(array(&$this, "__destruct")); |
|
|
|
if ( defined('WP_DEBUG') and WP_DEBUG == true ) |
|
$this->show_errors(); |
|
|
|
if ( defined('DB_CHARSET') ) |
|
$this->charset = DB_CHARSET; |
|
|
|
if ( defined('DB_COLLATE') ) |
|
$this->collate = DB_COLLATE; |
|
|
|
$this->dbh = @mysqli_connect($dbhost, $dbuser, $dbpassword, $dbname); |
|
if (!$this->dbh) { |
|
$this->bail(sprintf(/*WP_I18N_DB_CONN_ERROR*/" |
|
<h1>Error establishing a database connection</h1> |
|
<p>This either means that the username and password information in your <code>wp-config.php</code> file is incorrect or we can't contact the database server at <code>%s</code>. This could mean your host's database server is down.</p> |
|
<ul> |
|
<li>Are you sure you have the correct username and password?</li> |
|
<li>Are you sure that you have typed the correct hostname?</li> |
|
<li>Are you sure that the database server is running?</li> |
|
</ul> |
|
<p>If you're unsure what these terms mean you should probably contact your host. If you still need help you can always visit the <a href='http://wordpress.org/support/'>WordPress Support Forums</a>.</p> |
|
"/*/WP_I18N_DB_CONN_ERROR*/, $dbhost)); |
|
return; |
|
} |
|
|
|
$this->ready = true; |
|
|
|
if ( $this->supports_collation() ) { |
|
$collation_query = ''; |
|
if ( !empty($this->charset) ) { |
|
$collation_query = "SET NAMES '{$this->charset}'"; |
|
if (!empty($this->collate) ) |
|
$collation_query .= " COLLATE '{$this->collate}'"; |
|
} |
|
|
|
if ( !empty($collation_query) ) |
|
$this->query($collation_query); |
|
|
|
} |
|
|
|
//$this->select($dbname); |
|
} |
|
|
|
/** |
|
* PHP5 style destructor and will run when database object is destroyed. |
|
* |
|
* @since 2.0.8 |
|
* |
|
* @return bool Always true |
|
*/ |
|
function __destruct() { |
|
return true; |
|
} |
|
|
|
/** |
|
* Sets the table prefix for the WordPress tables. |
|
* |
|
* Also allows for the CUSTOM_USER_TABLE and CUSTOM_USER_META_TABLE to |
|
* override the WordPress users and usersmeta tables. |
|
* |
|
* @since 2.5.0 |
|
* |
|
* @param string $prefix Alphanumeric name for the new prefix. |
|
* @return string Old prefix |
|
*/ |
|
function set_prefix($prefix) { |
|
|
|
if ( preg_match('|[^a-z0-9_]|i', $prefix) ) |
|
return new WP_Error('invalid_db_prefix', /*WP_I18N_DB_BAD_PREFIX*/'Invalid database prefix'/*/WP_I18N_DB_BAD_PREFIX*/); |
|
|
|
$old_prefix = $this->prefix; |
|
$this->prefix = $prefix; |
|
|
|
foreach ( $this->tables as $table ) |
|
$this->$table = $this->prefix . $table; |
|
|
|
if ( defined('CUSTOM_USER_TABLE') ) |
|
$this->users = CUSTOM_USER_TABLE; |
|
|
|
if ( defined('CUSTOM_USER_META_TABLE') ) |
|
$this->usermeta = CUSTOM_USER_META_TABLE; |
|
|
|
return $old_prefix; |
|
} |
|
|
|
function get_blog_prefix( $blog_id = null ) { |
|
if ( is_multisite() ) { |
|
if ( null === $blog_id ) |
|
$blog_id = $this->blogid; |
|
if ( defined( 'MULTISITE' ) && ( 0 == $blog_id || 1 == $blog_id ) ) |
|
return $this->base_prefix; |
|
else |
|
return $this->base_prefix . $blog_id . '_'; |
|
} else { |
|
return $this->base_prefix; |
|
} |
|
} |
|
function tables( $scope = 'all', $prefix = true, $blog_id = 0 ) { |
|
switch ( $scope ) { |
|
case 'all' : |
|
$tables = array_merge( $this->global_tables, $this->tables ); |
|
if ( is_multisite() ) |
|
$tables = array_merge( $tables, $this->ms_global_tables ); |
|
break; |
|
case 'blog' : |
|
$tables = $this->tables; |
|
break; |
|
case 'global' : |
|
$tables = $this->global_tables; |
|
if ( is_multisite() ) |
|
$tables = array_merge( $tables, $this->ms_global_tables ); |
|
break; |
|
case 'ms_global' : |
|
$tables = $this->ms_global_tables; |
|
break; |
|
case 'old' : |
|
$tables = $this->old_tables; |
|
break; |
|
default : |
|
return array(); |
|
break; |
|
} |
|
|
|
if ( $prefix ) { |
|
if ( ! $blog_id ) |
|
$blog_id = $this->blogid; |
|
$blog_prefix = $this->get_blog_prefix( $blog_id ); |
|
$base_prefix = $this->base_prefix; |
|
$global_tables = array_merge( $this->global_tables, $this->ms_global_tables ); |
|
foreach ( $tables as $k => $table ) { |
|
if ( in_array( $table, $global_tables ) ) |
|
$tables[ $table ] = $base_prefix . $table; |
|
else |
|
$tables[ $table ] = $blog_prefix . $table; |
|
unset( $tables[ $k ] ); |
|
} |
|
|
|
if ( isset( $tables['users'] ) && defined( 'CUSTOM_USER_TABLE' ) ) |
|
$tables['users'] = CUSTOM_USER_TABLE; |
|
|
|
if ( isset( $tables['usermeta'] ) && defined( 'CUSTOM_USER_META_TABLE' ) ) |
|
$tables['usermeta'] = CUSTOM_USER_META_TABLE; |
|
} |
|
|
|
return $tables; |
|
} |
|
|
|
/** |
|
* Selects a database using the current database connection. |
|
* |
|
* The database name will be changed based on the current database |
|
* connection. On failure, the execution will bail and display an DB error. |
|
* |
|
* @since 0.71 |
|
* |
|
* @param string $db MySQL database name |
|
* @return null Always null. |
|
*/ |
|
function select($db) { |
|
if (!@mysqli_select_db($this->dbh, $db)) { |
|
$this->ready = false; |
|
$this->bail(sprintf(/*WP_I18N_DB_SELECT_DB*/' |
|
<h1>Can’t select database</h1> |
|
<p>We were able to connect to the database server (which means your username and password is okay) but not able to select the <code>%1$s</code> database.</p> |
|
<ul> |
|
<li>Are you sure it exists?</li> |
|
<li>Does the user <code>%2$s</code> have permission to use the <code>%1$s</code> database?</li> |
|
<li>On some systems the name of your database is prefixed with your username, so it would be like username_wordpress. Could that be the problem?</li> |
|
</ul> |
|
<p>If you don\'t know how to setup a database you should <strong>contact your host</strong>. If all else fails you may find help at the <a href="http://wordpress.org/support/">WordPress Support Forums</a>.</p>'/*/WP_I18N_DB_SELECT_DB*/, $db, DB_USER)); |
|
return; |
|
} |
|
} |
|
|
|
/** |
|
* Escapes content for insertion into the database, for security |
|
* |
|
* @since 0.71 |
|
* |
|
* @param string $string |
|
* @return string query safe string |
|
*/ |
|
function escape($string) { |
|
return addslashes( $string ); |
|
// Disable rest for now, causing problems |
|
/* |
|
if( !$this->dbh || version_compare( phpversion(), '4.3.0' ) == '-1' ) |
|
return mysql_escape_string( $string ); |
|
else |
|
return mysql_real_escape_string( $string, $this->dbh ); |
|
*/ |
|
} |
|
|
|
/** |
|
* Escapes content by reference for insertion into the database, for security |
|
* |
|
* @since 2.3.0 |
|
* |
|
* @param string $s |
|
*/ |
|
function escape_by_ref(&$s) { |
|
$s = $this->escape($s); |
|
} |
|
|
|
/** |
|
* Prepares a SQL query for safe use, using sprintf() syntax. |
|
* |
|
* @link http://php.net/sprintf See for syntax to use for query string. |
|
* @since 2.3.0 |
|
* |
|
* @param null|string $args If string, first parameter must be query statement |
|
* @param mixed $args,... If additional parameters, they will be set inserted into the query. |
|
* @return null|string Sanitized query string |
|
*/ |
|
function prepare($args=null) { |
|
if ( is_null( $args ) ) |
|
return; |
|
$args = func_get_args(); |
|
$query = array_shift($args); |
|
$query = str_replace("'%s'", '%s', $query); // in case someone mistakenly already singlequoted it |
|
$query = str_replace('"%s"', '%s', $query); // doublequote unquoting |
|
$query = str_replace('%s', "'%s'", $query); // quote the strings |
|
array_walk($args, array(&$this, 'escape_by_ref')); |
|
return @vsprintf($query, $args); |
|
} |
|
|
|
/** |
|
* Print SQL/DB error. |
|
* |
|
* @since 0.71 |
|
* @global array $EZSQL_ERROR Stores error information of query and error string |
|
* |
|
* @param string $str The error to display |
|
* @return bool False if the showing of errors is disabled. |
|
*/ |
|
function print_error($str = '') { |
|
global $EZSQL_ERROR; |
|
|
|
if (!$str) $str = mysqli_error($this->dbh); |
|
$EZSQL_ERROR[] = array ('query' => $this->last_query, 'error_str' => $str); |
|
|
|
if ( $this->suppress_errors ) |
|
return false; |
|
|
|
if ( $caller = $this->get_caller() ) |
|
$error_str = sprintf(/*WP_I18N_DB_QUERY_ERROR_FULL*/'WordPress database error %1$s for query %2$s made by %3$s'/*/WP_I18N_DB_QUERY_ERROR_FULL*/, $str, $this->last_query, $caller); |
|
else |
|
$error_str = sprintf(/*WP_I18N_DB_QUERY_ERROR*/'WordPress database error %1$s for query %2$s'/*/WP_I18N_DB_QUERY_ERROR*/, $str, $this->last_query); |
|
|
|
$log_error = true; |
|
if ( ! function_exists('error_log') ) |
|
$log_error = false; |
|
|
|
$log_file = @ini_get('error_log'); |
|
if ( !empty($log_file) && ('syslog' != $log_file) && !is_writable($log_file) ) |
|
$log_error = false; |
|
|
|
if ( $log_error ) |
|
@error_log($error_str, 0); |
|
|
|
// Is error output turned on or not.. |
|
if ( !$this->show_errors ) |
|
return false; |
|
|
|
$str = htmlspecialchars($str, ENT_QUOTES); |
|
$query = htmlspecialchars($this->last_query, ENT_QUOTES); |
|
|
|
// If there is an error then take note of it |
|
print "<div id='error'> |
|
<p class='wpdberror'><strong>WordPress database error:</strong> [$str]<br /> |
|
<code>$query</code></p> |
|
</div>"; |
|
} |
|
|
|
/** |
|
* Enables showing of database errors. |
|
* |
|
* This function should be used only to enable showing of errors. |
|
* wpdb::hide_errors() should be used instead for hiding of errors. However, |
|
* this function can be used to enable and disable showing of database |
|
* errors. |
|
* |
|
* @since 0.71 |
|
* |
|
* @param bool $show Whether to show or hide errors |
|
* @return bool Old value for showing errors. |
|
*/ |
|
function show_errors( $show = true ) { |
|
$errors = $this->show_errors; |
|
$this->show_errors = $show; |
|
return $errors; |
|
} |
|
|
|
/** |
|
* Disables showing of database errors. |
|
* |
|
* @since 0.71 |
|
* |
|
* @return bool Whether showing of errors was active or not |
|
*/ |
|
function hide_errors() { |
|
$show = $this->show_errors; |
|
$this->show_errors = false; |
|
return $show; |
|
} |
|
|
|
/** |
|
* Whether to suppress database errors. |
|
* |
|
* @param unknown_type $suppress |
|
* @return unknown |
|
*/ |
|
function suppress_errors( $suppress = true ) { |
|
$errors = $this->suppress_errors; |
|
$this->suppress_errors = $suppress; |
|
return $errors; |
|
} |
|
|
|
/** |
|
* Kill cached query results. |
|
* |
|
* @since 0.71 |
|
*/ |
|
function flush() { |
|
$this->last_result = array(); |
|
$this->col_info = null; |
|
$this->last_query = null; |
|
} |
|
|
|
/** |
|
* Perform a MySQL database query, using current database connection. |
|
* |
|
* More information can be found on the codex page. |
|
* |
|
* @since 0.71 |
|
* |
|
* @param string $query |
|
* @return unknown |
|
*/ |
|
function query($query) { |
|
if ( ! $this->ready ) |
|
return false; |
|
|
|
// filter the query, if filters are available |
|
// NOTE: some queries are made before the plugins have been loaded, and thus cannot be filtered with this method |
|
if ( function_exists('apply_filters') ) |
|
$query = apply_filters('query', $query); |
|
|
|
// initialise return |
|
$return_val = 0; |
|
$this->flush(); |
|
|
|
// Log how the function was called |
|
$this->func_call = "\$db->query(\"$query\")"; |
|
|
|
// Keep track of the last query for debug.. |
|
$this->last_query = $query; |
|
|
|
// Perform the query via std mysql_query function.. |
|
if ( defined('SAVEQUERIES') && SAVEQUERIES ) |
|
$this->timer_start(); |
|
|
|
$this->result = @mysqli_query($this->dbh, $query); |
|
++$this->num_queries; |
|
|
|
if ( defined('SAVEQUERIES') && SAVEQUERIES ) |
|
$this->queries[] = array( $query, $this->timer_stop(), $this->get_caller() ); |
|
|
|
// If there is an error then take note of it.. |
|
if ( $this->last_error = mysqli_error($this->dbh) ) { |
|
$this->print_error(); |
|
return false; |
|
} |
|
|
|
if ( preg_match("/^\\s*(insert|delete|update|replace) /i",$query) ) { |
|
$this->rows_affected = mysqli_affected_rows($this->dbh); |
|
// Take note of the insert_id |
|
if ( preg_match("/^\\s*(insert|replace) /i",$query) ) { |
|
$this->insert_id = mysqli_insert_id($this->dbh); |
|
} |
|
// Return number of rows affected |
|
$return_val = $this->rows_affected; |
|
} else { |
|
$i = 0; |
|
while ($i < @mysqli_field_count($this->result)) { |
|
$this->col_info[$i] = @mysqli_fetch_field($this->result); |
|
$i++; |
|
} |
|
$num_rows = 0; |
|
while ( $row = @mysqli_fetch_object($this->result) ) { |
|
$this->last_result[$num_rows] = $row; |
|
$num_rows++; |
|
} |
|
|
|
@mysqli_free_result($this->result); |
|
|
|
// Log number of rows the query returned |
|
$this->num_rows = $num_rows; |
|
|
|
// Return number of rows selected |
|
$return_val = $this->num_rows; |
|
} |
|
|
|
return $return_val; |
|
} |
|
|
|
/** |
|
* Insert an array of data into a table. |
|
* |
|
* @since 2.5.0 |
|
* |
|
* @param string $table WARNING: not sanitized! |
|
* @param array $data Should not already be SQL-escaped |
|
* @return mixed Results of $this->query() |
|
*/ |
|
function insert($table, $data) { |
|
$data = add_magic_quotes($data); |
|
$fields = array_keys($data); |
|
return $this->query("INSERT INTO $table (`" . implode('`,`',$fields) . "`) VALUES ('".implode("','",$data)."')"); |
|
} |
|
|
|
/** |
|
* Update a row in the table with an array of data. |
|
* |
|
* @since 2.5.0 |
|
* |
|
* @param string $table WARNING: not sanitized! |
|
* @param array $data Should not already be SQL-escaped |
|
* @param array $where A named array of WHERE column => value relationships. Multiple member pairs will be joined with ANDs. WARNING: the column names are not currently sanitized! |
|
* @return mixed Results of $this->query() |
|
*/ |
|
function update($table, $data, $where){ |
|
$data = add_magic_quotes($data); |
|
$bits = $wheres = array(); |
|
foreach ( array_keys($data) as $k ) |
|
$bits[] = "`$k` = '$data[$k]'"; |
|
|
|
if ( is_array( $where ) ) |
|
foreach ( $where as $c => $v ) |
|
$wheres[] = "$c = '" . $this->escape( $v ) . "'"; |
|
else |
|
return false; |
|
return $this->query( "UPDATE $table SET " . implode( ', ', $bits ) . ' WHERE ' . implode( ' AND ', $wheres ) . ' LIMIT 1' ); |
|
} |
|
|
|
/** |
|
* Retrieve one variable from the database. |
|
* |
|
* This combines the functionality of wpdb::get_row() and wpdb::get_col(), |
|
* so both the column and row can be picked. |
|
* |
|
* It is possible to use this function without executing more queries. If |
|
* you already made a query, you can set the $query to 'null' value and just |
|
* retrieve either the column and row of the last query result. |
|
* |
|
* @since 0.71 |
|
* |
|
* @param string $query Can be null as well, for caching |
|
* @param int $x Column num to return |
|
* @param int $y Row num to return |
|
* @return mixed Database query results |
|
*/ |
|
function get_var($query=null, $x = 0, $y = 0) { |
|
$this->func_call = "\$db->get_var(\"$query\",$x,$y)"; |
|
if ( $query ) |
|
$this->query($query); |
|
|
|
// Extract var out of cached results based x,y vals |
|
if ( !empty( $this->last_result[$y] ) ) { |
|
$values = array_values(get_object_vars($this->last_result[$y])); |
|
} |
|
|
|
// If there is a value return it else return null |
|
return (isset($values[$x]) && $values[$x]!=='') ? $values[$x] : null; |
|
} |
|
|
|
/** |
|
* Retrieve one row from the database. |
|
* |
|
* @since 0.71 |
|
* |
|
* @param string $query SQL query |
|
* @param string $output ARRAY_A | ARRAY_N | OBJECT |
|
* @param int $y Row num to return |
|
* @return mixed Database query results |
|
*/ |
|
function get_row($query = null, $output = OBJECT, $y = 0) { |
|
$this->func_call = "\$db->get_row(\"$query\",$output,$y)"; |
|
if ( $query ) |
|
$this->query($query); |
|
else |
|
return null; |
|
|
|
if ( !isset($this->last_result[$y]) ) |
|
return null; |
|
|
|
if ( $output == OBJECT ) { |
|
return $this->last_result[$y] ? $this->last_result[$y] : null; |
|
} elseif ( $output == ARRAY_A ) { |
|
return $this->last_result[$y] ? get_object_vars($this->last_result[$y]) : null; |
|
} elseif ( $output == ARRAY_N ) { |
|
return $this->last_result[$y] ? array_values(get_object_vars($this->last_result[$y])) : null; |
|
} else { |
|
$this->print_error(/*WP_I18N_DB_GETROW_ERROR*/" \$db->get_row(string query, output type, int offset) -- Output type must be one of: OBJECT, ARRAY_A, ARRAY_N"/*/WP_I18N_DB_GETROW_ERROR*/); |
|
} |
|
} |
|
|
|
/** |
|
* Retrieve one column from the database. |
|
* |
|
* @since 0.71 |
|
* |
|
* @param string $query Can be null as well, for caching |
|
* @param int $x Col num to return. Starts from 0. |
|
* @return array Column results |
|
*/ |
|
function get_col($query = null , $x = 0) { |
|
if ( $query ) |
|
$this->query($query); |
|
|
|
$new_array = array(); |
|
// Extract the column values |
|
for ( $i=0; $i < count($this->last_result); $i++ ) { |
|
$new_array[$i] = $this->get_var(null, $x, $i); |
|
} |
|
return $new_array; |
|
} |
|
|
|
/** |
|
* Retrieve an entire result set from the database. |
|
* |
|
* @since 0.71 |
|
* |
|
* @param string|null $query Can also be null to pull from the cache |
|
* @param string $output ARRAY_A | ARRAY_N | OBJECT_K | OBJECT |
|
* @return mixed Database query results |
|
*/ |
|
function get_results($query = null, $output = OBJECT) { |
|
$this->func_call = "\$db->get_results(\"$query\", $output)"; |
|
|
|
if ( $query ) |
|
$this->query($query); |
|
else |
|
return null; |
|
|
|
if ( $output == OBJECT ) { |
|
// Return an integer-keyed array of row objects |
|
return $this->last_result; |
|
} elseif ( $output == OBJECT_K ) { |
|
// Return an array of row objects with keys from column 1 |
|
// (Duplicates are discarded) |
|
foreach ( $this->last_result as $row ) { |
|
$key = array_shift( get_object_vars( $row ) ); |
|
if ( !isset( $new_array[ $key ] ) ) |
|
$new_array[ $key ] = $row; |
|
} |
|
return $new_array; |
|
} elseif ( $output == ARRAY_A || $output == ARRAY_N ) { |
|
// Return an integer-keyed array of... |
|
if ( $this->last_result ) { |
|
$i = 0; |
|
foreach( $this->last_result as $row ) { |
|
if ( $output == ARRAY_N ) { |
|
// ...integer-keyed row arrays |
|
$new_array[$i] = array_values( get_object_vars( $row ) ); |
|
} else { |
|
// ...column name-keyed row arrays |
|
$new_array[$i] = get_object_vars( $row ); |
|
} |
|
++$i; |
|
} |
|
return $new_array; |
|
} |
|
} |
|
} |
|
|
|
/** |
|
* Retrieve column metadata from the last query. |
|
* |
|
* @since 0.71 |
|
* |
|
* @param string $info_type one of name, table, def, max_length, not_null, primary_key, multiple_key, unique_key, numeric, blob, type, unsigned, zerofill |
|
* @param int $col_offset 0: col name. 1: which table the col's in. 2: col's max length. 3: if the col is numeric. 4: col's type |
|
* @return mixed Column Results |
|
*/ |
|
function get_col_info($info_type = 'name', $col_offset = -1) { |
|
if ( $this->col_info ) { |
|
if ( $col_offset == -1 ) { |
|
$i = 0; |
|
foreach($this->col_info as $col ) { |
|
$new_array[$i] = $col->{$info_type}; |
|
$i++; |
|
} |
|
return $new_array; |
|
} else { |
|
return $this->col_info[$col_offset]->{$info_type}; |
|
} |
|
} |
|
} |
|
|
|
/** |
|
* Starts the timer, for debugging purposes. |
|
* |
|
* @since 1.5.0 |
|
* |
|
* @return bool Always returns true |
|
*/ |
|
function timer_start() { |
|
$mtime = microtime(); |
|
$mtime = explode(' ', $mtime); |
|
$this->time_start = $mtime[1] + $mtime[0]; |
|
return true; |
|
} |
|
|
|
/** |
|
* Stops the debugging timer. |
|
* |
|
* @since 1.5.0 |
|
* |
|
* @return int Total time spent on the query, in milliseconds |
|
*/ |
|
function timer_stop() { |
|
$mtime = microtime(); |
|
$mtime = explode(' ', $mtime); |
|
$time_end = $mtime[1] + $mtime[0]; |
|
$time_total = $time_end - $this->time_start; |
|
return $time_total; |
|
} |
|
|
|
/** |
|
* Wraps fatal errors in a nice header and footer and dies. |
|
* |
|
* @since 1.5.0 |
|
* |
|
* @param string $message |
|
* @return unknown |
|
*/ |
|
function bail($message) { |
|
if ( !$this->show_errors ) { |
|
if ( class_exists('WP_Error') ) |
|
$this->error = new WP_Error('500', $message); |
|
else |
|
$this->error = $message; |
|
return false; |
|
} |
|
wp_die($message); |
|
} |
|
|
|
/** |
|
* Whether or not MySQL database is minimal required version. |
|
* |
|
* @since 2.5.0 |
|
* @uses $wp_version |
|
* |
|
* @return WP_Error |
|
*/ |
|
function check_database_version() |
|
{ |
|
global $wp_version; |
|
// Make sure the server has MySQL 4.0 |
|
$mysql_version = preg_replace('|[^0-9\.]|', '', @mysqli_get_server_info($this->dbh)); |
|
if ( version_compare($mysql_version, '4.0.0', '<') ) |
|
return new WP_Error('database_version',sprintf(__('<strong>ERROR</strong>: WordPress %s requires MySQL 4.0.0 or higher'), $wp_version)); |
|
} |
|
|
|
/** |
|
* Whether of not the database version supports collation. |
|
* |
|
* Called when WordPress is generating the table scheme. |
|
* |
|
* @since 2.5.0 |
|
* |
|
* @return bool True if collation is supported, false if version does not |
|
*/ |
|
function supports_collation() |
|
{ |
|
return ( version_compare(mysqli_get_server_info($this->dbh), '4.1.0', '>=') ); |
|
} |
|
function db_version() { |
|
return preg_replace('/[^0-9.].*/', '', mysqli_get_server_info( $this->dbh )); |
|
} |
|
/** |
|
* Retrieve the name of the function that called wpdb. |
|
* |
|
* Requires PHP 4.3 and searches up the list of functions until it reaches |
|
* the one that would most logically had called this method. |
|
* |
|
* @since 2.5.0 |
|
* |
|
* @return string The name of the calling function |
|
*/ |
|
function get_caller() { |
|
// requires PHP 4.3+ |
|
if ( !is_callable('debug_backtrace') ) |
|
return ''; |
|
|
|
$bt = debug_backtrace(); |
|
$caller = ''; |
|
|
|
foreach ( $bt as $trace ) { |
|
if ( @$trace['class'] == __CLASS__ ) |
|
continue; |
|
elseif ( strtolower(@$trace['function']) == 'call_user_func_array' ) |
|
continue; |
|
elseif ( strtolower(@$trace['function']) == 'apply_filters' ) |
|
continue; |
|
elseif ( strtolower(@$trace['function']) == 'do_action' ) |
|
continue; |
|
|
|
$caller = $trace['function']; |
|
break; |
|
} |
|
return $caller; |
|
} |
|
|
|
} |
|
|
|
if ( ! isset($wpdb) ) |
|
$wpdb = new wpdb(DB_USER, DB_PASSWORD, DB_NAME, DB_HOST); |
|
endif; |
|
|
|
|
