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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 |
|---|---|
| 57 | if ( absint(get_option( 'default_category' ) ) != $category->term_id ) { |
| 58 | $output .= "<input type='checkbox' name='delete[]' value='$category->term_id' /></th>"; |
| 59 | } else { |
| 60 | $output .= " "; |
| 61 | } |
| 62 | $output .= "<td>$edit</td> |
| 63 | <td>$category->description</td> |
| 64 | <td class='num'>$posts_count</td>\n\t</tr>\n"; |
| 65 | |
| 66 | return apply_filters('cat_row', $output); |
| 67 | } |
| 68 | |
| 69 | function link_cat_row( $category ) { |
| 70 | global $class; |
| 71 | |
| 72 | if ( !$category = get_term( $category, 'link_category' ) ) |
| 73 | return false; |
| 74 | if ( is_wp_error( $category ) ) |
| 75 | return $category; |