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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 |
|---|---|
| 1787 | * |
| 1788 | * Returning false from the filter will prevent the dialog from being displayed. |
| 1789 | * |
| 1790 | * @since 3.6.0 |
| 1791 | * |
| 1792 | * @param bool $display Whether to display the dialog. Default true. |
| 1793 | * @param WP_Post $post Post object. |
| 1794 | * @param WP_User $user The user with the lock for the post. |
| 1795 | */ |
| 1796 | if ( ! apply_filters( 'show_post_locked_dialog', true, $post, $user ) ) { |
| 1797 | return; |
| 1798 | } |
| 1799 | |
| 1800 | $locked = true; |
| 1801 | } else { |
| 1802 | $locked = false; |
| 1803 | } |
| 1804 | |
| 1805 | $sendback = wp_get_referer(); |