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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 |
|---|---|
| 43 | $template = ABSPATH . WPINC . '/embed-template.php'; |
| 44 | |
| 45 | /** |
| 46 | * Filter the template used for embedded posts. |
| 47 | * |
| 48 | * @since 4.4.0 |
| 49 | * |
| 50 | * @param string $template Path to the template file. |
| 51 | */ |
| 52 | $template = apply_filters( 'embed_template', $template ); |
| 53 | |
| 54 | include ( $template ); |
| 55 | return; |
| 56 | endif; |
| 57 | |
| 58 | if ( defined('WP_USE_THEMES') && WP_USE_THEMES ) : |
| 59 | $template = false; |
| 60 | if ( is_404() && $template = get_404_template() ) : |
| 61 | elseif ( is_search() && $template = get_search_template() ) : |