Online PHP editor | refs for 4oVAt

<?php // Dummy object for testing purposes. $user = new stdClass; $user->ID = 1234; // Wrapped for brevity. $sql = "SELECT * FROM `wp_podsrel` WHERE `related_item_id` = $user->ID AND `pod_id` = 17 AND `field_id` = 25"; $user->foo = [ 'ID' => 567 ]; // Now here we need to use brackets, i.e. {}. $sql2 = "SELECT * FROM `wp_podsrel` WHERE `related_item_id` = {$user->foo['ID']} AND `pod_id` = 17 AND `field_id` = 25"; $user->bar = (object) $user->foo; // Here we also need to use {}. $sql3 = "SELECT * FROM `wp_podsrel` WHERE `related_item_id` = {$user->bar->ID} AND `pod_id` = 17 AND `field_id` = 25"; var_dump( $sql, $sql2, $sql3 );