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To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
This hook occurs 2 times in this file.
| Line | Code |
|---|---|
| 444 | |
| 445 | $args = array(); |
| 446 | if ( is_array($arg) && 1 == count($arg) && isset($arg[0]) && is_object($arg[0]) ) // array(&$this) |
| 447 | $args[] =& $arg[0]; |
| 448 | else |
| 449 | $args[] = $arg; |
| 450 | for ( $a = 2, $num = func_num_args(); $a < $num; $a++ ) |
| 451 | $args[] = func_get_arg($a); |
| 452 | |
| 453 | $wp_filter[ $tag ]->do_action( $args ); |
| 454 | |
| 455 | array_pop($wp_current_filter); |
| 456 | } |
| 457 | |
| 458 | /** |
| 459 | * Retrieve the number of times an action is fired. |
| 460 | * |
| 461 | * @since 2.1.0 |
| 462 | * |
| Line | Code |
| 506 | if ( !isset($wp_filter[$tag]) ) { |
| 507 | if ( isset($wp_filter['all']) ) |
| 508 | array_pop($wp_current_filter); |
| 509 | return; |
| 510 | } |
| 511 | |
| 512 | if ( !isset($wp_filter['all']) ) |
| 513 | $wp_current_filter[] = $tag; |
| 514 | |
| 515 | $wp_filter[ $tag ]->do_action( $args ); |
| 516 | |
| 517 | array_pop($wp_current_filter); |
| 518 | } |
| 519 | |
| 520 | /** |
| 521 | * Check if any action has been registered for a hook. |
| 522 | * |
| 523 | * @since 2.5.0 |
| 524 | * |