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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 |
|---|---|
| 211 | // Everyone else's comments will be checked. |
| 212 | if ( check_comment($comment_author, $comment_author_email, $comment_author_url, $comment_content, $comment_author_IP, $comment_agent, $comment_type) ) |
| 213 | $approved = 1; |
| 214 | else |
| 215 | $approved = 0; |
| 216 | if ( wp_blacklist_check($comment_author, $comment_author_email, $comment_author_url, $comment_content, $comment_author_IP, $comment_agent) ) |
| 217 | $approved = 'spam'; |
| 218 | } |
| 219 | |
| 220 | $approved = apply_filters('pre_comment_approved', $approved); |
| 221 | return $approved; |
| 222 | } |
| 223 | |
| 224 | |
| 225 | function wp_blacklist_check($author, $email, $url, $comment, $user_ip, $user_agent) { |
| 226 | global $wpdb; |
| 227 | |
| 228 | do_action('wp_blacklist_check', $author, $email, $url, $comment, $user_ip, $user_agent); |
| 229 | |