wp_set_wpdb_vars

Set the database table prefix and the format specifiers for database table columns.

Description

wp_set_wpdb_vars();

Columns not listed here default to %s..

Usage

if ( !function_exists( 'wp_set_wpdb_vars' ) ) { 
    require_once ABSPATH . WPINC . '/load.php'; 
} 
 
  
// NOTICE! Understand what this does before running. 
$result = wp_set_wpdb_vars();

Defined (1)

The function is defined in the following location(s).

/wp-includes/load.php

function wp_set_wpdb_vars() { 
    global $wpdb, $table_prefix; 
    if ( !empty( $wpdb->error ) ) 
        dead_db(); 
 
    $wpdb->field_types = array( 'post_author' => '%d', 'post_parent' => '%d', 'menu_order' => '%d', 'term_id' => '%d', 'term_group' => '%d', 'term_taxonomy_id' => '%d',  
        'parent' => '%d', 'count' => '%d', 'object_id' => '%d', 'term_order' => '%d', 'ID' => '%d', 'comment_ID' => '%d', 'comment_post_ID' => '%d', 'comment_parent' => '%d',  
        'user_id' => '%d', 'link_id' => '%d', 'link_owner' => '%d', 'link_rating' => '%d', 'option_id' => '%d', 'blog_id' => '%d', 'meta_id' => '%d', 'post_id' => '%d',  
        'user_status' => '%d', 'umeta_id' => '%d', 'comment_karma' => '%d', 'comment_count' => '%d',  
        // multisite: 
        'active' => '%d', 'cat_id' => '%d', 'deleted' => '%d', 'lang_id' => '%d', 'mature' => '%d', 'public' => '%d', 'site_id' => '%d', 'spam' => '%d',  
 ); 
 
    $prefix = $wpdb->set_prefix( $table_prefix ); 
 
    if ( is_wp_error( $prefix ) ) { 
        wp_load_translations_early(); 
        wp_die( 
            /** translators: 1: $table_prefix 2: wp-config.php */ 
            sprintf( __( '<strong>ERROR</strong>: %1$s in %2$s can only contain numbers, letters, and underscores.' ),  
                '<code>$table_prefix</code>',  
                '<code>wp-config.php</code>' 
 ) 
 ); 
    } 
}