/**
* Removes every OTHER the_content callback via the real remove_filter()
* API (not by touching $wp_filter directly), so WP_Hook's own
* active-iteration bookkeeping stays consistent. Returns what was
* removed, in original priority/order, so restore_callbacks() can put
* it back the same way.
*/
private static function strip_other_callbacks() {
global $wp_filter;
if ( empty( $wp_filter['the_content'] ) ) {
return null;
}
$hook = $wp_filter['the_content'];
$removed = array();
// Read-only enumeration of what's currently registered.
foreach ( $hook->callbacks as $priority => $callbacks ) {
if ( PHP_INT_MIN === $priority || PHP_INT_MAX === $priority ) {
continue; // our own bookend callbacks
}
foreach ( $callbacks as $cb ) {
$removed[] = array(
'priority' => $priority,
'function' => $cb['function'],
'accepted_args' => $cb['accepted_args'],
);
}
}
// Mutate only through core's own API.
foreach ( $removed as $item ) {
remove_filter( 'the_content', $item['function'], $item['priority'] );
}
return $removed;
}
private static function restore_callbacks( $removed ) {
if ( empty( $removed ) ) {
return;
}
foreach ( $removed as $item ) {
add_filter( 'the_content', $item['function'], $item['priority'], $item['accepted_args'] );
}
}
Ms Eleni Singou - University of NicosiaSkip to content
