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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 |
|---|---|
| 1449 | * |
| 1450 | * The dynamic portion of the hook, `$object_type`, refers to the object |
| 1451 | * type (post, comment, term, or user). |
| 1452 | * |
| 1453 | * @since 4.9.8 |
| 1454 | * |
| 1455 | * @param string $object_subtype Empty string to override. |
| 1456 | * @param int $object_id ID of the object to get the subtype for. |
| 1457 | */ |
| 1458 | return apply_filters( "get_object_subtype_{$object_type}", $object_subtype, $object_id ); |
| 1459 | } |
| 1460 | |