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The wpdb class, accessed via the $wpdb global variable, is used to interact with the WordPress database

1
vote
its normal for get_results method you can use get_row method to get only one row.
answered Nov 18 '12 by Oleg Butuzov
1
vote
Your code of wpdb method is correct. posible reasons why it fails... you have only one user that match's meta_key = 'user_token' other functionality change query at query hook filter strage. …
answered Nov 14 '12 by Oleg Butuzov
3
votes
class MyClass{ function __construct(){ global $wpdb; $this->db = $wpdb; } function query(){ return $this->db->query( $this->db->prepare("INSERT INTO {$this …
answered Nov 25 '12 by Oleg Butuzov
1
vote
/wp-load.php'); #global $wpdb Comment those lines.. you don't need it. $wpdb quite global in any template file. BTW, do you really want's to make such form in your tempalte file? 0_o …
answered Oct 22 '13 by Oleg Butuzov
7
votes
query - you will get sql as argument of the callback. add_filter('query', 'some_callback_that_change_query'); function some_callback_that_change_query($sql){ remove_filter('query', 'some_callba …
answered Jul 5 '14 by Oleg Butuzov
0
votes
; $wpdb->tables[] = 'termmeta'; $wpdb->termmeta = $wpdb->prefix.' … termmeta'; table itself $wpdb->query("CREATE TABLE IF NOT EXISTS `{$wpdb->prefix}termmeta` ( `meta_id` bigint(20) unsigned NOT NULL AUTO_INCREMENT, `term_id` bigint(20) unsigned NOT NULL DEFAULT …
answered Jun 12 '15 by Oleg Butuzov