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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 |
|---|---|
| 776 | if ( $category->category_parent == $parent) { |
| 777 | echo "\t" . _cat_row( $category, $level ); |
| 778 | if ( isset($children[$category->cat_ID]) ) |
| 779 | cat_rows( $category->cat_ID, $level +1, $categories ); |
| 780 | } |
| 781 | } |
| 782 | $output = ob_get_contents(); |
| 783 | ob_end_clean(); |
| 784 | |
| 785 | $output = apply_filters('cat_rows', $output); |
| 786 | |
| 787 | echo $output; |
| 788 | } else { |
| 789 | return false; |
| 790 | } |
| 791 | } |
| 792 | |
| 793 | function _cat_row( $category, $level, $name_override = false ) { |
| 794 | global $class; |