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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 3 times in this file.
| Line | Code |
|---|---|
| 4798 | do_action( 'deleted_post', $post_id ); |
| 4799 | |
| 4800 | $uploadpath = wp_get_upload_dir(); |
| 4801 | |
| 4802 | if ( ! empty($meta['thumb']) ) { |
| 4803 | // Don't delete the thumb if another attachment uses it. |
| 4804 | 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", '%' . $wpdb->esc_like( $meta['thumb'] ) . '%', $post_id)) ) { |
| 4805 | $thumbfile = str_replace(basename($file), $meta['thumb'], $file); |
| 4806 | /** This filter is documented in wp-includes/functions.php */ |
| 4807 | $thumbfile = apply_filters( 'wp_delete_file', $thumbfile ); |
| 4808 | @ unlink( path_join($uploadpath['basedir'], $thumbfile) ); |
| 4809 | } |
| 4810 | } |
| 4811 | |
| 4812 | // Remove intermediate and backup images if there are any. |
| 4813 | if ( isset( $meta['sizes'] ) && is_array( $meta['sizes'] ) ) { |
| 4814 | foreach ( $meta['sizes'] as $size => $sizeinfo ) { |
| 4815 | $intermediate_file = str_replace( basename( $file ), $sizeinfo['file'], $file ); |
| 4816 | /** This filter is documented in wp-includes/functions.php */ |
| 4817 | $intermediate_file = apply_filters( 'wp_delete_file', $intermediate_file ); |
| 4818 | @ unlink( path_join( $uploadpath['basedir'], $intermediate_file ) ); |
| 4819 | } |
| 4820 | } |
| 4821 | |
| 4822 | if ( is_array($backup_sizes) ) { |
| 4823 | foreach ( $backup_sizes as $size ) { |
| 4824 | $del_file = path_join( dirname($meta['file']), $size['file'] ); |
| 4825 | /** This filter is documented in wp-includes/functions.php */ |
| 4826 | $del_file = apply_filters( 'wp_delete_file', $del_file ); |
| 4827 | @ unlink( path_join($uploadpath['basedir'], $del_file) ); |
| 4828 | } |
| 4829 | } |
| 4830 | |
| 4831 | wp_delete_file( $file ); |
| 4832 | |
| 4833 | clean_post_cache( $post ); |
| 4834 | |
| 4835 | return $post; |