Online PHP editor | refs for 4WumW

<?php echo '------------ Teste ------------' . PHP_EOL; $variavel = 'teste'; var_dump(isset($variavel), is_null($variavel)); echo '------------ NULL ------------' . PHP_EOL; $variavel = null; var_dump(isset($variavel), is_null($variavel)); echo '------------ Unset ------------' . PHP_EOL; unset($variavel); var_dump(isset($variavel), is_null($variavel));