noptin_subscriber_meta_exists( int $subscriber_id, string $meta_key )
Determines if a meta field with the given key exists for the given noptin subscriber ID.
Parameters Parameters
- $subscriber_id
(int) (Required) ID of the subscriber metadata is for.
- $meta_key
(string) (Required) Metadata key.
Source Source
File: includes/subscriber.php
function noptin_subscriber_meta_exists( $subscriber_id, $meta_key ) {
return metadata_exists( 'noptin_subscriber', $subscriber_id, $meta_key );
}
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