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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 |
---|---|
2190 | } |
2191 |
|
2192 | $file = apply_filters('wp_delete_file', $file); |
2193 |
|
2194 | if ( ! empty($file) ) |
2195 | @ unlink($file); |
2196 |
|
2197 | clean_post_cache($postid); |
2198 |
|
2199 | do_action('delete_attachment', $postid); |
2200 |
|
2201 | return $post; |
2202 | } |
2203 |
|
2204 | /** |
2205 | * wp_get_attachment_metadata() - Retrieve metadata for an attachment |
2206 | * |
2207 | * {@internal Missing Long Description}} |
2208 | * |