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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 |
|---|---|
| 761 | foreach ( $categories as $category ) { |
| 762 | if ( $category->category_parent == $parent) { |
| 763 | echo "\t" . _cat_row( $category, $level ); |
| 764 | cat_rows( $category->cat_ID, $level +1, $categories ); |
| 765 | } |
| 766 | } |
| 767 | $output = ob_get_contents(); |
| 768 | ob_end_clean(); |
| 769 | |
| 770 | $output = apply_filters('cat_rows', $output); |
| 771 | |
| 772 | echo $output; |
| 773 | } else { |
| 774 | return false; |
| 775 | } |
| 776 | } |
| 777 | |
| 778 | function _cat_row( $category, $level, $name_override = false ) { |
| 779 | global $class; |