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