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<?php
namespace Phuria\QueryBuilder\Expression\Comparison;
use Phuria\QueryBuilder\Expression\ExpressionInterface;
/**
* @author Beniamin Jonatan Šimko <[email protected]>
*/
class IsNull implements ExpressionInterface
{
* @var ExpressionInterface $wrappedExpression
private $wrappedExpression;
* @param ExpressionInterface $expression
public function __construct(ExpressionInterface $expression)
$this->wrappedExpression = $expression;
}
* @inheritdoc
public function compile()
return $this->wrappedExpression->compile() . ' IS NULL';
phuria /
under-query
