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filter is not described

comments_pre_query filter-hook . WP 5.3.0

Filter the comments data before the query takes place.

Return a non-null value to bypass WordPress's 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 int. 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.

Usage

add_filter( 'comments_pre_query', 'filter_function_name_3074', 10, 2 );
function filter_function_name_3074( $comment_data, $this ){
	// 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.
$this(WP_Comment_Query)
The WP_Comment_Query instance, passed by reference.

Changelog

Since 5.3.0 Introduced.

Where the hook is called

WP_Comment_Query::get_comments()
comments_pre_query
wp-includes/class-wp-comment-query.php 401
$comment_data = apply_filters_ref_array( 'comments_pre_query', array( $comment_data, &$this ) );

Where in WP core the hook is used

Usage not found!