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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 |
|---|---|
| 510 | * |
| 511 | * @see set_current_screen() |
| 512 | * @since 3.3.0 |
| 513 | */ |
| 514 | function set_current_screen() { |
| 515 | global $current_screen, $taxnow, $typenow; |
| 516 | $current_screen = $this; |
| 517 | $taxnow = $this->taxonomy; |
| 518 | $typenow = $this->post_type; |
| 519 | do_action( 'current_screen', $current_screen ); |
| 520 | } |
| 521 | |
| 522 | /** |
| 523 | * Constructor |
| 524 | * |
| 525 | * @since 3.3.0 |
| 526 | * @access private |
| 527 | */ |
| 528 | private function __construct() {} |