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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 |
|---|---|
| 4204 | |
| 4205 | /** |
| 4206 | * Filters the URL to a file in the theme. |
| 4207 | * |
| 4208 | * @since 4.7.0 |
| 4209 | * |
| 4210 | * @param string $url The file URL. |
| 4211 | * @param string $file The requested file to search for. |
| 4212 | */ |
| 4213 | return apply_filters( 'theme_file_uri', $url, $file ); |
| 4214 | } |
| 4215 | |
| 4216 | /** |
| 4217 | * Retrieves the URL of a file in the parent theme. |
| 4218 | * |
| 4219 | * @since 4.7.0 |
| 4220 | * |
| 4221 | * @param string $file Optional. File to return the URL for in the template directory. |
| 4222 | * @return string The URL of the file. |