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To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
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 |
|---|---|
| 1571 | foreach ( $exts as $ext ) { |
| 1572 | $src_file = "$icon_dir/$type.$ext"; |
| 1573 | if ( file_exists($src_file) ) { |
| 1574 | $src = "$icon_dir_uri/$type.$ext"; |
| 1575 | break 2; |
| 1576 | } |
| 1577 | } |
| 1578 | } |
| 1579 | |
| 1580 | return apply_filters( 'wp_mime_type_icon', $src, $mime, $post_id ); // Last arg is 0 if function pass mime type. |
| 1581 | } |
| 1582 | |
| 1583 | function wp_check_for_changed_slugs($post_id) { |
| 1584 | if ( !strlen($_POST['wp-old-slug']) ) |
| 1585 | return $post_id; |
| 1586 | |
| 1587 | $post = &get_post($post_id); |
| 1588 | |
| 1589 | // we're only concerned with published posts |