Menu Adam R Brown

WP hooks navigation: Home/browseActions indexFilters index

Source View: {$arg}

To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).

Understanding Source Code

The best way to understand what a hook does is to look at where it occurs in the source code.

Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.

Source View

Line Code
461      }
462
463      if ( empty( $arg ) ) {
464           $arg[] = '';
465      } elseif ( is_array( $arg[0] ) && 1 === count( $arg[0] ) && isset( $arg[0][0] ) && is_object( $arg[0][0] ) ) {
466           // Backward compatibility for PHP4-style passing of `array( &$this )` as action `$arg`.
467           $arg[0] = $arg[0][0];
468      }
469
470      $wp_filter[ $hook_name ]->do_action( $arg );
471
472      array_pop( $wp_current_filter );
473 }
474
475 /**
476  * Calls the callback functions that have been added to an action hook, specifying arguments in an array.
477  *
478  * @since 2.1.0
479  *