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php优化代码的方式

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Jun 23, 2016 pm 01:38 PM

1.使用zend optimizer
方法在php.ini添加
zend_optimization_level=15
zned_extendsion="path/to/zendOptimizer.so"
zend_loader.enable=off

注意只有当不适用zend　Enocder Runtime 的时候才能把zend_loader关掉

最后一行的作用：不执行zend_loader可以稍微加快Opimizer的速度。

2.使用缓存(程序规模很大)
Zend cache, Afterburner Cache, apc

3.网页压缩内容
gzip压缩网页

4.小技巧：
用i +=1 代替 i = i+1;
尽可能使用PHP内部函数
能使用单引号的字符串时尽量使用单引号字符串
foreach代替while遍历数组

数据库方面：
提高数据库的性能
升级服务器或者建一个负载平衡环境
不要小看内容压缩的作用

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