迁移PHP版本到PHP7_php技巧
今天看到微博上说phpng也就是php7合并到master上了，大家都知道我是比较喜欢探讨最新版本的东西，看看有什么特性，我就忍不住升级去了，以前我的PHP版本是5.5.19，然后我就开始了。
yum install git
git clone https://github.com/php/php-src.git
然后编译配置参数，我的博客服务器是腾讯云服务器，因为是博客配置比较低。如下：
单核 Intel(R) Xeon(R) CPU E5-2630 v2 @ 2.60GHz
内存 2G
下边是针对php5.5和phpNG版本的测试，当然我这是线上，也受网络环境的干扰，大家就看看的了，基准不对的哈。
我的测试模拟的是然后开始100个并发, 100个请求的ab压测
php5
php7
php5 的QPS是2.09
php7 的QPS是3.67
当然在测试的时候php5的最高负载时3.0，php7的最高负载时2.05，当然现在还是php7-dev
所以PHP7的性能大家是可以看到的，只是我的服务器配置不给力测试的这个结果，大家可以自己测试看看
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