Test/EVSE/GPL/php-7.3.28/Zend/tests/ns_077_5.phpt

--TEST--
077: Unknown compile-time constants in namespace
--FILE--
<?php

function foo($a = array(0 => \unknown))
{
}

foo();
--EXPECTF--
Fatal error: Uncaught Error: Undefined constant 'unknown' in %sns_077_%d.php:%d
Stack trace:
#0 %s(%d): foo()
#1 {main}
  thrown in %sns_077_%d.php on line %d