delete_post_meta_by_key() – Function | Developer.WordPress.org

delete_post_meta_by_key( string $post_meta_key ): bool

Deletes everything from post meta matching the given meta key.

Parameters

bool Whether the post meta key was deleted from the database.

function delete_post_meta_by_key( $post_meta_key ) {
	return delete_metadata( 'post', null, $post_meta_key, '', true );
}

Uses	Description
delete_metadata()`wp-includes/meta.php`	Deletes metadata for the specified object.

Version	Description
2.3.0	Introduced.

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