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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 |
|---|---|
| 221 | echo $after; |
| 222 | } |
| 223 | } |
| 224 | |
| 225 | function get_comment_author_url_link( $linktext = '', $before = '', $after = '' ) { |
| 226 | global $comment; |
| 227 | $url = get_comment_author_url(); |
| 228 | $display = ($linktext != '') ? $linktext : $url; |
| 229 | $return = "$before<a href='$url' rel='external'>$display</a>$after"; |
| 230 | return apply_filters('get_comment_author_url_link', $return); |
| 231 | } |
| 232 | |
| 233 | function comment_author_url_link( $linktext = '', $before = '', $after = '' ) { |
| 234 | echo get_comment_author_url_link( $linktext, $before, $after ); |
| 235 | } |
| 236 | |
| 237 | function get_comment_author_IP() { |
| 238 | global $comment; |
| 239 | return apply_filters('get_comment_author_IP', $comment->comment_author_IP); |