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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 |
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704 | * @uses do_action() Calls 'comment_post' hook on $comment_ID returned from adding the comment and if the comment was approved. |
705 | * @uses wp_filter_comment() Used to filter comment before adding comment |
706 | * @uses wp_allow_comment() checks to see if comment is approved. |
707 | * @uses wp_insert_comment() Does the actual comment insertion to the database |
708 | * |
709 | * @param array $commentdata Contains information on the comment |
710 | * @return int The ID of the comment after adding. |
711 | */ |
712 | function wp_new_comment( $commentdata ) { |
713 | $commentdata = apply_filters('preprocess_comment', $commentdata); |
714 |
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715 | $commentdata['comment_post_ID'] = (int) $commentdata['comment_post_ID']; |
716 | $commentdata['user_ID'] = (int) $commentdata['user_ID']; |
717 |
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718 | $commentdata['comment_author_IP'] = preg_replace( '/[^0-9a-fA-F:., ]/', '',$_SERVER['REMOTE_ADDR'] ); |
719 | $commentdata['comment_agent'] = $_SERVER['HTTP_USER_AGENT']; |
720 |
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721 | $commentdata['comment_date'] = current_time('mysql'); |
722 | $commentdata['comment_date_gmt'] = current_time('mysql', 1); |