php-src/Zend/tests/bug26696.phpt

--TEST--
Bug #26696 (crash in switch() when string index is used)
--FILE--
<?php
$str = 'asdd/?';
$len = strlen($str);
for ($i = 0; $i < $len; $i++) {
	switch ($str[$i]) {
	case '?':
		echo "?+\n";
		break;
	default:
		echo $str[$i].'-';
		break;
	}
}

?>
===DONE===
--EXPECT--
a-s-d-d-/-?+
===DONE===