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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 |
|---|---|
| 2282 | |
| 2283 | /** |
| 2284 | * Modify returned attachment counts by mime type. |
| 2285 | * |
| 2286 | * @since 3.7.0 |
| 2287 | * |
| 2288 | * @param object $counts An object containing the attachment counts by mime type. |
| 2289 | * @param string $mime_type The mime type pattern used to filter the attachments counted. |
| 2290 | */ |
| 2291 | return apply_filters( 'wp_count_attachments', (object) $counts, $mime_type ); |
| 2292 | } |
| 2293 | |
| 2294 | /** |
| 2295 | * Get default post mime types |
| 2296 | * |
| 2297 | * @since 2.9.0 |
| 2298 | * |
| 2299 | * @return array |
| 2300 | */ |