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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 |
|---|---|
| 1490 | |
| 1491 | /** |
| 1492 | * Filters the list of available language codes. |
| 1493 | * |
| 1494 | * @since 4.7.0 |
| 1495 | * |
| 1496 | * @param string[] $languages An array of available language codes. |
| 1497 | * @param string $dir The directory where the language files were found. |
| 1498 | */ |
| 1499 | return apply_filters( 'get_available_languages', array_unique( $languages ), $dir ); |
| 1500 | } |
| 1501 | |
| 1502 | /** |
| 1503 | * Gets installed translations. |
| 1504 | * |
| 1505 | * Looks in the wp-content/languages directory for translations of |
| 1506 | * plugins or themes. |
| 1507 | * |
| 1508 | * @since 3.7.0 |