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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 |
|---|---|
| 39 | * @return bool Whether the checks passed (true) and the comments should be |
| 40 | * displayed or set to moderated |
| 41 | */ |
| 42 | function check_comment($author, $email, $url, $comment, $user_ip, $user_agent, $comment_type) { |
| 43 | global $wpdb; |
| 44 | |
| 45 | if ( 1 == get_option('comment_moderation') ) |
| 46 | return false; // If moderation is set to manual |
| 47 | |
| 48 | if ( get_option('comment_max_links') && preg_match_all("|(href\t*?=\t*?['\"]?)?(https?:)?//|i", apply_filters('comment_text', $comment), $out) >= get_option('comment_max_links') ) |
| 49 | return false; // Check # of external links |
| 50 | |
| 51 | $mod_keys = trim(get_option('moderation_keys')); |
| 52 | if ( !empty($mod_keys) ) { |
| 53 | $words = explode("\n", $mod_keys ); |
| 54 | |
| 55 | foreach ( (array) $words as $word) { |
| 56 | $word = trim($word); |
| 57 | |