I tried something,
<?php sp_url_get('spesical_page.php') ?>
function sp_url_get($sp_name){
global $wpdb;
$mynameID = $wpdb->get_results( "SELECT post_id FROM wp_postmeta WHERE meta_value = '$sp_name'" );
foreach ($mynameID as $key) {
echo $key->post_id;
}
}
Out function sp_url_get($sp_name): 12,143,225…..353
is more than one number..But there is only one of them. Others have been deleted page