Description:
------------
There happens a "segmentation fault" while traversing big arrays with "foreach".

A sample backtrace:
/opt/uwsgi/uwsgi(uwsgi_backtrace+0x2a) [0x807981a]
/opt/uwsgi/uwsgi(uwsgi_segfault+0x2c) [0x807990c]
/lib/libc.so.6 [0xb7b02e28]
/opt/php54/lib/libphp5.so(zend_object_std_dtor+0x88) [0xb6509948]
/opt/php54/lib/libphp5.so(zend_objects_free_object_storage+0x12) [0xb6509982]
/opt/php54/lib/libphp5.so(zend_objects_store_free_object_storage+0x78) 
[0xb650ed28]
/opt/php54/lib/libphp5.so [0xb64e021c]
/opt/php54/lib/libphp5.so [0xb64eb623]
/opt/php54/lib/libphp5.so(php_request_shutdown+0x172) [0xb648fe52]
./php_plugin.so(uwsgi_php_request+0x1e0) [0xb7fb8e90]

Seg-faulted code (probably with 100.000 items or more):

        foreach ($options as $item) {
            if ($item['value'] == $value) {
                return $item['label'];
            }
        }



Expected result:
----------------
no segmentation fault

Actual result:
--------------
segmentation fault