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- --TEST--
- bug #71428: Validation type inheritance with = NULL
- --FILE--
- <?php
- class A { }
- class B { public function m(A $a = NULL, $n) { echo "B.m";} };
- class C extends B { public function m(A $a , $n) { echo "C.m";} };
- ?>
- --EXPECTF--
- Fatal error: Declaration of C::m(A $a, $n) must be compatible with B::m(?A $a, $n) in %sbug71428.3.php on line 4
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