PHP 5.5.0 发布第二个 CR 版本，修复了下 bug：
Fixed a bug related to segfault on memory exhaustion within function definition.
Fixed bug in mbstring PHPTs which would crash on Windows x64.
Fixed a bug where Custom Exceptions could crash when internal properties overridden.
下载地址：http://downloads.php.net/dsp
Windows 安装文件：windows.php.net/qa/
来自:开源中国社区
