DbCache_WpdbInjection_QueryCaching try to cache ‘BEGIN’ query

Hello,

I installed a WordPress plugin which triggered an error, and here is the stacktrace :

TypeError:mysqli_num_fields(): Argument #1 ($result) must be of type mysqli_result, true given

#0 /wp-includes/class-wpdb.php(3876): mysqli_num_fields

#1 /wp-includes/class-wpdb.php(3876): wpdb::load_col_info

#2 /wp-includes/class-wpdb.php(785): wpdb::__get

#3 /wp-content/plugins/w3-total-cache/DbCache_WpdbInjection_QueryCaching.php(230): W3TC\DbCache_WpdbInjection_QueryCaching::query

#4 /wp-content/plugins/w3-total-cache/DbCache_WpdbNew.php(216): W3TC\DbCache_WpdbNew::query

The executed code of that plugin is :

$wpdb->query( 'BEGIN' );

Could you please improve the following code ( in DbCache_WpdbInjection_QueryCaching.php ) ?

if ( preg_match( '~^\s*start transaction\b~is', $query ) ) {

Thank you.

• This topic was modified 3 weeks ago by joehorntw.
• This topic was modified 3 weeks ago by joehorntw.