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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 |
|---|---|
| 4232 | |
| 4233 | /** |
| 4234 | * Filters the URL to a file in the parent theme. |
| 4235 | * |
| 4236 | * @since 4.7.0 |
| 4237 | * |
| 4238 | * @param string $url The file URL. |
| 4239 | * @param string $file The requested file to search for. |
| 4240 | */ |
| 4241 | return apply_filters( 'parent_theme_file_uri', $url, $file ); |
| 4242 | } |
| 4243 | |
| 4244 | /** |
| 4245 | * Retrieves the path of a file in the theme. |
| 4246 | * |
| 4247 | * Searches in the stylesheet directory before the template directory so themes |
| 4248 | * which inherit from a parent theme can just override one file. |
| 4249 | * |
| 4250 | * @since 4.7.0 |