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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 |
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35 | return $category; |
36 | $category_nicename = $category->slug; |
37 |
|
38 | if ( $parent = $category->parent ) |
39 | $category_nicename = get_category_parents($parent, false, '/', true) . $category_nicename; |
40 |
|
41 | $catlink = str_replace('%category%', $category_nicename, $catlink); |
42 | $catlink = get_option('home') . user_trailingslashit($catlink, 'category'); |
43 | } |
44 | return apply_filters('category_link', $catlink, $category_id); |
45 | } |
46 |
|
47 | function get_category_parents($id, $link = FALSE, $separator = '/', $nicename = FALSE){ |
48 | $chain = ''; |
49 | $parent = &get_category($id); |
50 | if ( is_wp_error( $parent ) ) |
51 | return $parent; |
52 |
|
53 | if ( $nicename ) |