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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.
This hook occurs 4 times in this file.
| Line | Code |
|---|---|
| 3851 | $wpdb->delete( $wpdb->posts, array( 'ID' => $post_id ) ); |
| 3852 | do_action( 'deleted_post', $post_id ); |
| 3853 | |
| 3854 | $uploadpath = wp_upload_dir(); |
| 3855 | |
| 3856 | if ( ! empty($meta['thumb']) ) { |
| 3857 | // Don't delete the thumb if another attachment uses it |
| 3858 | if (! $wpdb->get_row( $wpdb->prepare( "SELECT meta_id FROM $wpdb->postmeta WHERE meta_key = '_wp_attachment_metadata' AND meta_value LIKE %s AND post_id <> %d", '%' . $meta['thumb'] . '%', $post_id)) ) { |
| 3859 | $thumbfile = str_replace(basename($file), $meta['thumb'], $file); |
| 3860 | $thumbfile = apply_filters('wp_delete_file', $thumbfile); |
| 3861 | @ unlink( path_join($uploadpath['basedir'], $thumbfile) ); |
| 3862 | } |
| 3863 | } |
| 3864 | |
| 3865 | // remove intermediate and backup images if there are any |
| 3866 | foreach ( $intermediate_sizes as $intermediate ) { |
| 3867 | $intermediate_file = apply_filters( 'wp_delete_file', $intermediate['path'] ); |
| 3868 | @ unlink( path_join($uploadpath['basedir'], $intermediate_file) ); |
| 3869 | } |
| 3870 | |
| 3871 | if ( is_array($backup_sizes) ) { |
| 3872 | foreach ( $backup_sizes as $size ) { |
| 3873 | $del_file = path_join( dirname($meta['file']), $size['file'] ); |
| 3874 | $del_file = apply_filters('wp_delete_file', $del_file); |
| 3875 | @ unlink( path_join($uploadpath['basedir'], $del_file) ); |
| 3876 | } |
| 3877 | } |
| 3878 | |
| 3879 | $file = apply_filters('wp_delete_file', $file); |
| 3880 | |
| 3881 | if ( ! empty($file) ) |
| 3882 | @ unlink($file); |
| 3883 | |
| 3884 | clean_post_cache( $post ); |
| 3885 | |
| 3886 | return $post; |
| 3887 | } |
| 3888 | |