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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 |
|---|---|
| 181 | echo $after; |
| 182 | $previouscat = $currentcat; |
| 183 | } |
| 184 | } |
| 185 | |
| 186 | function category_description($category = 0) { |
| 187 | global $cat, $wpdb, $tablecategories, $cache_categories; |
| 188 | if (!$category) $category = $cat; |
| 189 | $category_description = $cache_categories[$category]->category_description; |
| 190 | $category_description = apply_filters('category_description', $category_description); |
| 191 | return $category_description; |
| 192 | } |
| 193 | |
| 194 | // out of the WordPress loop |
| 195 | function dropdown_cats($optionall = 1, $all = 'All', $sort_column = 'ID', $sort_order = 'asc', |
| 196 | $optiondates = 0, $optioncount = 0, $hide_empty = 1, $optionnone=FALSE, |
| 197 | $selected=0, $hide=0) { |
| 198 | global $tablecategories, $tableposts, $tablepost2cat, $wpdb; |
| 199 | global $querystring_start, $querystring_equal, $querystring_separator; |