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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.
| Line | Code |
|---|---|
| 573 | /** |
| 574 | * Fires when scripts enqueued for the admin header for the legacy (pre-3.5.0) |
| 575 | * media upload popup are printed. |
| 576 | * |
| 577 | * @since 2.9.0 |
| 578 | */ |
| 579 | do_action( 'admin_head-media-upload-popup' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores |
| 580 | |
| 581 | /** This action is documented in wp-admin/admin-header.php */ |
| 582 | do_action( 'admin_head' ); |
| 583 | |
| 584 | if ( is_string( $content_func ) ) { |
| 585 | /** |
| 586 | * Fires in the admin header for each specific form tab in the legacy |
| 587 | * (pre-3.5.0) media upload popup. |
| 588 | * |
| 589 | * The dynamic portion of the hook name, `$content_func`, refers to the form |
| 590 | * callback for the media upload type. |
| 591 | * |