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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 |
|---|---|
| 1504 | * Filter whether to show the post locked dialog. |
| 1505 | * |
| 1506 | * Returning a falsey value to the filter will short-circuit displaying the dialog. |
| 1507 | * |
| 1508 | * @since 3.6.0 |
| 1509 | * |
| 1510 | * @param bool $display Whether to display the dialog. Default true. |
| 1511 | * @param WP_User|bool $user WP_User object on success, false otherwise. |
| 1512 | */ |
| 1513 | if ( ! apply_filters( 'show_post_locked_dialog', true, $post, $user ) ) |
| 1514 | return; |
| 1515 | |
| 1516 | $locked = true; |
| 1517 | } else { |
| 1518 | $locked = false; |
| 1519 | } |
| 1520 | |
| 1521 | if ( $locked && ( $sendback = wp_get_referer() ) && |
| 1522 | false === strpos( $sendback, 'post.php' ) && false === strpos( $sendback, 'post-new.php' ) ) { |