Online PHP editor | refs for 8sEAP

<?php var_dump( (array)5, (array)null, (array) 0); $tests = [ '[] == false' => [] == false, '"" == false' => "" == false, '"ABC" == false' => "ABC" == false, '"123" == false' => "123" == false, 'null == false' => null == false, '0 == false' => 0 == false, '0.49 == false' => 0.49 == false ]; $i = 1; foreach($tests as $name => $result) { echo ++$i . ") " . $name . ($result ? ' => T' : ' => F') . "\n"; }