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php常用函数
耀的博客
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PHP常用函数

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注:mb_*和iconv_*可以处理很多字节字符,例如:中文。

中文主要用到编码格式是GBK和UTF-8两种编码格式。

GBK和UTF-8是由两个不同的编码委员会对于汉字进行编码的标准。

他们规定GBK是双字节,也就是一个汉字占用2bytes;

规定UTF-8是三字节,一个汉字占用3bytes。



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