	private function _namespace( $option ) {
		$option === 0 ?? $option = '0';
		if ( is_array( $option ) && count( $option ) ) {
			if ( $this->parameters->getParameter( 'openreferences' ) ) {
				$this->addWhere(
					[
						"{$this->tableNames['pagelinks']}.pl_namespace"	=> $option
					]
				);
			} else {
				$this->addWhere(
					[
						"{$this->tableNames['page']}.page_namespace"	=> $option
					]
				);
			}
		}
	}
The software does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.