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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 |
|---|---|
| 542 | * |
| 543 | * @see set_current_screen() |
| 544 | * @since 3.3.0 |
| 545 | */ |
| 546 | function set_current_screen() { |
| 547 | global $current_screen, $taxnow, $typenow; |
| 548 | $current_screen = $this; |
| 549 | $taxnow = $this->taxonomy; |
| 550 | $typenow = $this->post_type; |
| 551 | do_action( 'current_screen', $current_screen ); |
| 552 | } |
| 553 | |
| 554 | /** |
| 555 | * Constructor |
| 556 | * |
| 557 | * @since 3.3.0 |
| 558 | * @access private |
| 559 | */ |
| 560 | private function __construct() {} |