php基础学习- 一些废弃的用法封锁提高性能
php基础学习-- 一些废弃的用法关闭提高性能
php的register_long_arrays可以关闭以提高性能
由于$HTTP_*_VARS这种变量已经过时，PHP手册中明确表示反对使用，因此如果程序中还有这类变量建议更改为新的PHP 超全局变量。
$HTTP_GET_VARS -> $_GET
$HTTP_POST_VARS -> $_POST
$HTTP_COOKIE_VARS??-> $_COOKIE
$HTTP_POST_FILES -> $_POST
我的PHP探针中使用了memory_get_usage来获取当前页面所占用的内存，于是就用运行PHP探针测试了一下，也发现了关闭后占用的内存有轻微的减少。本机探针143.30 -> 142.01，瑞豪开源VPS的探针52.82 -> 52.55，单位KB。
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