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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 |
|---|---|
| 678 | if ( 'default' == $template ) |
| 679 | $template = ''; |
| 680 | |
| 681 | $templates = array(); |
| 682 | if ( !empty($template) && !validate_file($template) ) |
| 683 | $templates[] = $template; |
| 684 | |
| 685 | $templates[] = "page.php"; |
| 686 | |
| 687 | return apply_filters('page_template', locate_template($templates)); |
| 688 | } |
| 689 | |
| 690 | /** |
| 691 | * Retrieve path of paged template in current or parent template. |
| 692 | * |
| 693 | * @since 1.5.0 |
| 694 | * |
| 695 | * @return string |
| 696 | */ |