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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 |
|---|---|
| 1406 | * The dynamic portion of the hook name, `$post_type`, refers to |
| 1407 | * the post type slug. |
| 1408 | * |
| 1409 | * @since 3.5.0 |
| 1410 | * |
| 1411 | * @see get_post_type_labels() for the full list of labels. |
| 1412 | * |
| 1413 | * @param object $labels Object with labels for the post type as member variables. |
| 1414 | */ |
| 1415 | $labels = apply_filters( "post_type_labels_{$post_type}", $labels ); |
| 1416 | |
| 1417 | // Ensure that the filtered labels contain all required default values. |
| 1418 | $labels = (object) array_merge( (array) $default_labels, (array) $labels ); |
| 1419 | |
| 1420 | return $labels; |
| 1421 | } |
| 1422 | |
| 1423 | /** |
| 1424 | * Build an object with custom-something object (post type, taxonomy) labels |