Segfault with PHPUnit in PHP_5_2 and PHP_5_3

I got a report about a segfault in PHP_5_2 and PHP_5_3 today that is
triggered by PHPUnit running the test below.

  class MyObject {
      public function getX() {
          return NULL;
      }
  }

  class MyTest extends PHPUnit_Framework_TestCase {
      public function test1() {
          $obj = new MyObject;
          $source = & $obj->getX();
      }
  }

Running the test code "manually" only results in the expected E_STRICT
("Only variables should be assigned by reference").

Details from GDB and Valgrind are here:

• http://static.phpunit.de/gdb-5.2.txt
• http://static.phpunit.de/gdb-5.3.txt
• http://static.phpunit.de/valgrind-5.2.txt
• http://static.phpunit.de/valgrind-5.3.txt

Unfortunately I could not come up with a short reproducable script that
does not involve PHPUnit.

--
Sebastian Bergmann http://sebastian-bergmann.de/
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