wp-includes/class-wp-hook.php:193Removes a callback function from a filter hook.
$hook_namestring$callbackcallable|string|array$priorityintbool public function remove_filter( $hook_name, $callback, $priority ) { if ( null === $priority ) { $priority = 0; } $function_key = _wp_filter_build_unique_id( $hook_name, $callback, $priority ); $exists = isset( $function_key, $this->callbacks[ $priority ][ $function_key ] ); if ( $exists ) { unset( $this->callbacks[ $priority ][ $function_key ] ); if ( ! $this->callbacks[ $priority ] ) { unset( $this->callbacks[ $priority ] ); $this->priorities = array_keys( $this->callbacks ); if ( $this->nesting_level > 0 ) { $this->resort_active_iterations(); } } } return $exists; }Introduced in 4.7.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/class-wp-hook.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.