Online PHP editor | refs for k2Nrv

<?php $_content = 'Error adding user (John "Halcyon" Styn): [existing_user_login] Sorry, that username already exists! [Array ( [user_login] => John Halcyon Styn [user_nicename] => John Halcyon Styn [display_name] => John "Halcyon" Styn [user_email] => [user_url] => [role] => Subscriber [user_pass] => d5b5c2ee6eb5e77c4ced954f6ef36617 ) ]'; preg_match('%\[user_login\] => (*.)\[%', $_content, $r); print_r($r);