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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 |
|---|---|
| 670 | * Attempts to locate 'home.php' first before falling back to 'index.php'. |
| 671 | * |
| 672 | * @since 1.5.0 |
| 673 | * @uses apply_filters() Calls 'home_template' on file path of home template. |
| 674 | * |
| 675 | * @return string |
| 676 | */ |
| 677 | function get_home_template() { |
| 678 | $template = locate_template(array('home.php', 'index.php')); |
| 679 | return apply_filters('home_template', $template); |
| 680 | } |
| 681 | |
| 682 | /** |
| 683 | * Retrieve path of page template in current or parent template. |
| 684 | * |
| 685 | * First attempt is to look for the file in the '_wp_page_template' page meta |
| 686 | * data. The second attempt, if the first has a file and is not empty, is to |
| 687 | * look for 'page.php'. |
| 688 | * |