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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 |
|---|---|
| 125 | unset($categories[$k]); |
| 126 | } |
| 127 | } |
| 128 | } |
| 129 | reset ( $categories ); |
| 130 | |
| 131 | $cache[ $key ] = $categories; |
| 132 | wp_cache_set( 'get_categories', $cache, 'category' ); |
| 133 | |
| 134 | return apply_filters('get_categories', $categories, $r); |
| 135 | } |
| 136 | |
| 137 | // Retrieves category data given a category ID or category object. |
| 138 | // Handles category caching. |
| 139 | function &get_category(&$category, $output = OBJECT) { |
| 140 | global $wpdb; |
| 141 | |
| 142 | if ( empty($category) ) |
| 143 | return null; |