Online PHP editor | refs for 9rhDs

<?php echo 'Should see "default value"'; $empty_string = ""; $result1 = $empty_string ?: "default value"; var_dump($result1); echo 'Should see "overridden value"'; $non_empty_string = "something"; $result2 = $non_empty_string ?: "overridden value"; var_dump($result2);