Description:
------------
Running the example provided at http://www.php.net/manual/en/function.runkit-method-copy.php causes a segmentation fault.

The segmentation fault appears to occur after the script has been executed.

Taking the advice to turn off any Zend extensions helps. When I turn off Zend Optimizer 2.5.8 the error does not occur.

Reproduce code:
---------------
<?php
class Foo {
   function example() {
       return "foo!\n";
   }
}

class Bar {
   // initially, no methods
}

// copy the example() method from the Foo class to the Bar class, as baz()
runkit_method_copy('Bar', 'baz', 'Foo', 'example');

// output copied function
echo Bar::baz();
?> 

Expected result:
----------------
foo!


Actual result:
--------------
foo!
Segmentation fault