新版有底下的新功能～
PHP 5.5 adds new features such as:
- Zend Optimizer+ opcode cache included, now known as opcache extension
- Generators
- try { } finally { }
- Literal dereferencing for arrays and strings
- Array return value de-referencing
- Class name resolution
- Password hashing API
- and much more
(1) 安裝新的資源庫 webtatic
# rpm -Uvh http://mirror.webtatic.com/yum/el6/latest.rpm
(2) 更新 yum plugin
# yum install yum-plugin-replace
(3) 使用新版 php55w-common 取代舊版 php-common
# yum replace php-common --replace-with=php55w-common
(4) 安裝 php 5.5
# yum install php55w php55w-opcache
這樣就可以囉～～