comment_exists() – Determine if a comment exists based on author and date.
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Description
Determine if a comment exists based on author and date.
For best performance, use `$timezone = 'gmt'`, which queries a field that is properly indexed. The default value for $timezone
is 'blog' for legacy reasons.
Usage
$string|null = comment_exists( $comment_author, $comment_date, $timezone );
Parameters
- $comment_author
- ( string ) required – Author of the comment.
- $comment_date
- ( string ) required – Date of the comment.
- $timezone
- ( string ) optional default: blog – Timezone. Accepts 'blog' or 'gmt'. Default 'blog'.
Returns
string|null Comment post ID on success.
Source
File name: wordpress/wp-admin/includes/comment.php
Lines:
1 to 17 of 17
function comment_exists( $comment_author, $comment_date, $timezone = 'blog' ) { global $wpdb; $date_field = 'comment_date'; if ( 'gmt' === $timezone ) { $date_field = 'comment_date_gmt'; } return $wpdb->get_var( $wpdb->prepare( "SELECT comment_post_ID FROM $wpdb->comments WHERE comment_author = %s AND $date_field = %s", stripslashes( $comment_author ), stripslashes( $comment_date ) ) ); }