PHP 5.4 RC1 发布

PHP 5.4 首个候选发行版 RC1 发布了，该版本没有包含新特性，主要是 bug 修复。

主要改进有：

• Added class member access on instantiation (e.g. (new Foo)->bar()).
• Changed silent conversion of array to string to produce a notice.
• Numerous bug fixes and improvements in the Core and other extensions.