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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 |
|---|---|
| 881 | * @param string $author The author of the comment |
| 882 | * @param string $email The email of the comment |
| 883 | * @param string $url The url used in the comment |
| 884 | * @param string $comment The comment content |
| 885 | * @param string $user_ip The comment author IP address |
| 886 | * @param string $user_agent The author's browser user agent |
| 887 | * @return bool True if comment contains blacklisted content, false if comment does not |
| 888 | */ |
| 889 | function wp_blacklist_check($author, $email, $url, $comment, $user_ip, $user_agent) { |
| 890 | do_action('wp_blacklist_check', $author, $email, $url, $comment, $user_ip, $user_agent); |
| 891 | |
| 892 | $mod_keys = trim( get_option('blacklist_keys') ); |
| 893 | if ( '' == $mod_keys ) |
| 894 | return false; // If moderation keys are empty |
| 895 | $words = explode("\n", $mod_keys ); |
| 896 | |
| 897 | foreach ( (array) $words as $word ) { |
| 898 | $word = trim($word); |
| 899 | |