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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 |
|---|---|
| 763 | $templates = array(); |
| 764 | |
| 765 | if ( $author ) |
| 766 | $templates[] = "author-{$author}.php"; |
| 767 | if ( $author_id ) |
| 768 | $templates[] = "author-{$author_id}.php"; |
| 769 | $templates[] = 'author.php'; |
| 770 | |
| 771 | $template = locate_template( $templates ); |
| 772 | return apply_filters( 'author_template', $template ); |
| 773 | } |
| 774 | |
| 775 | /** |
| 776 | * Retrieve path of category template in current or parent template. |
| 777 | * |
| 778 | * Works by first retrieving the current slug for example 'category-default.php' and then |
| 779 | * trying category ID, for example 'category-1.php' and will finally fallback to category.php |
| 780 | * template, if those files don't exist. |
| 781 | * |