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- --TEST--
- call_user_func() behavior when passing literal to reference parameter
- --FILE--
- <?php
- namespace Foo;
- var_dump(call_user_func('sort', []));
- var_dump(\call_user_func('sort', []));
- ?>
- --EXPECTF--
- Warning: sort(): Argument #1 ($array) must be passed by reference, value given in %s on line %d
- bool(true)
- Warning: sort(): Argument #1 ($array) must be passed by reference, value given in %s on line %d
- bool(true)
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