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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.
Line | Code |
---|---|
502 | * |
503 | * @see set_current_screen() |
504 | * @since 3.3.0 |
505 | */ |
506 | function set_current_screen() { |
507 | global $current_screen, $taxnow, $typenow; |
508 | $current_screen = $this; |
509 | $taxnow = $this->taxonomy; |
510 | $typenow = $this->post_type; |
511 | do_action( 'current_screen', $current_screen ); |
512 | } |
513 |
|
514 | /** |
515 | * Constructor |
516 | * |
517 | * @since 3.3.0 |
518 | * @access private |
519 | */ |
520 | private function __construct() {} |