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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 |
|---|---|
| 148 | else { |
| 149 | if ( check_comment($comment_author, $comment_author_email, $comment_author_url, $comment_content, $comment_author_IP, $comment_agent, $comment_type) ) |
| 150 | $approved = 1; |
| 151 | else |
| 152 | $approved = 0; |
| 153 | if ( wp_blacklist_check($comment_author, $comment_author_email, $comment_author_url, $comment_content, $comment_author_IP, $comment_agent) ) |
| 154 | $approved = 'spam'; |
| 155 | } |
| 156 | |
| 157 | $approved = apply_filters('pre_comment_approved', $approved); |
| 158 | return $approved; |
| 159 | } |
| 160 | |
| 161 | |
| 162 | function wp_update_comment($commentarr) { |
| 163 | global $wpdb; |
| 164 | |
| 165 | // First, get all of the original fields |
| 166 | $comment = get_comment($commentarr['comment_ID'], ARRAY_A); |