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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 |
|---|---|
| 2426 | * Modify returned attachment counts by mime type. |
| 2427 | * |
| 2428 | * @since 3.7.0 |
| 2429 | * |
| 2430 | * @param object $counts An object containing the attachment counts by |
| 2431 | * mime type. |
| 2432 | * @param string $mime_type The mime type pattern used to filter the attachments |
| 2433 | * counted. |
| 2434 | */ |
| 2435 | return apply_filters( 'wp_count_attachments', (object) $counts, $mime_type ); |
| 2436 | } |
| 2437 | |
| 2438 | /** |
| 2439 | * Get default post mime types. |
| 2440 | * |
| 2441 | * @since 2.9.0 |
| 2442 | * |
| 2443 | * @return array List of post mime types. |
| 2444 | */ |