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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 |
|---|---|
| 2172 | * Modify returned attachment counts by mime type. |
| 2173 | * |
| 2174 | * @since 3.7.0 |
| 2175 | * |
| 2176 | * @param object $counts An object containing the attachment counts by |
| 2177 | * mime type. |
| 2178 | * @param string $mime_type The mime type pattern used to filter the attachments |
| 2179 | * counted. |
| 2180 | */ |
| 2181 | return apply_filters( 'wp_count_attachments', (object) $counts, $mime_type ); |
| 2182 | } |
| 2183 | |
| 2184 | /** |
| 2185 | * Get default post mime types. |
| 2186 | * |
| 2187 | * @since 2.9.0 |
| 2188 | * |
| 2189 | * @return array List of post mime types. |
| 2190 | */ |