php/php-src — pull request #487 by datibbaw (2013-10-10 06:43:52+00:00)
Title: Changed zpp argument for environment to 'a' instead of 'a!'

This fixes https://bugs.php.net/bug.php?id=60602

The `convert_to_string_ex()` was modifying the underlying array while creating the environment string, so I've tweaked the respective zpp argument.