comments_pre_query │ filter-hook │ WP 5.3.0

Filters the comments data before the query takes place.

Return a non-null value to bypass WordPress' default comment queries.

The expected return type from this filter depends on the value passed in the request query vars:

• When $this->query_vars['count'] is set, the filter should return the comment count as an integer.
• When 'ids' === $this->query_vars['fields'], the filter should return an array of comment IDs.
• Otherwise the filter should return an array of WP_Comment objects.

Note that if the filter returns an array of comment data, it will be assigned to the comments property of the current WP_Comment_Query instance.

Filtering functions that require pagination information are encouraged to set the found_comments and max_num_pages properties of the WP_Comment_Query object, passed to the filter by reference. If WP_Comment_Query does not perform a database query, it will not have enough information to generate these values itself.

Usage

add_filter( 'comments_pre_query', 'wp_kama_comments_pre_query_filter' );

/**
 * Function for `comments_pre_query` filter-hook.
 * 
 * @param array|int|null $comment_data Return an array of comment data to short-circuit WP's comment query, the comment count as an integer if `$this->query_vars['count']` is set, or null to allow WP to run its normal queries.
 *
 * @return array|int|null
 */
function wp_kama_comments_pre_query_filter( $comment_data ){

	// filter...
	return $comment_data;
}

$comment_data(array|int|null)

Return an array of comment data to short-circuit WP's comment query, the comment count as an integer if $this->query_vars['count'] is set, or null to allow WP to run its normal queries.

Changelog

Where the hook is called

$comment_data = apply_filters_ref_array( 'comments_pre_query', array( $comment_data, &$this ) );

Where the hook is used in WordPress