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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 |
|---|---|
| 496 | * |
| 497 | * @see set_current_screen() |
| 498 | * @since 3.3.0 |
| 499 | */ |
| 500 | function set_current_screen() { |
| 501 | global $current_screen, $taxnow, $typenow; |
| 502 | $current_screen = $this; |
| 503 | $taxnow = $this->taxonomy; |
| 504 | $typenow = $this->post_type; |
| 505 | do_action( 'current_screen', $current_screen ); |
| 506 | } |
| 507 | |
| 508 | /** |
| 509 | * Constructor |
| 510 | * |
| 511 | * @since 3.3.0 |
| 512 | * @access private |
| 513 | */ |
| 514 | private function __construct() {} |