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Merge pull request taobao#199 from RocFang/patch-2
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Update chapter_07.rst, thanks to RocFang.
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jinglong committed Jan 21, 2014
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2 changes: 1 addition & 1 deletion source/chapter_07.rst
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#define NGX_HTTP_VAR_INDEXED 4
#define NGX_HTTP_VAR_NOHASH 8
1. NGX_HTTP_VAR_CHANGEABLE表示这个变量是可变的,比如arg_xxx这类变量,如果你使用set指令来修改,那么Nginx就会报错.
1. NGX_HTTP_VAR_CHANGEABLE表示这个变量是可变的.Nginx有很多内置变量是不可变的,比如arg_xxx这类变量,如果你使用set指令来修改,那么Nginx就会报错.
2. NGX_HTTP_VAR_NOCACHEABLE表示这个变量每次都要去取值,而不是直接返回上次cache的值(配合对应的接口).
3. NGX_HTTP_VAR_INDEXED表示这个变量是用索引读取的.
4. NGX_HTTP_VAR_NOHASH表示这个变量不需要被hash.
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