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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 |
|---|---|
| 286 | WP_Translation_Controller::get_instance()->set_locale( $locale ); |
| 287 | |
| 288 | /** |
| 289 | * Fires when the locale is switched to or restored. |
| 290 | * |
| 291 | * @since 4.7.0 |
| 292 | * |
| 293 | * @param string $locale The new locale. |
| 294 | */ |
| 295 | do_action( 'change_locale', $locale ); |
| 296 | } |
| 297 | } |
| 298 | |