Online PHP editor | refs for AFuZh

<?php $v = ['', 'a', 0, 0.0, 3.14]; foreach($v as $t): echo PHP_EOL; echo PHP_EOL; list($t1, $t2, $t3, $t4) = [$t, $t, $t, $t]; var_dump(gettype($t) . ':' . var_export($t, true), [ '-$t' => -$t, '+$t' => +$t, '!$t' => !$t, '~$t' => ~$t, '$t++' => $t1++, '$t--' => $t2--, '--$t' => --$t3, '++$t' => ++$t4]); endforeach;