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php截取函数，应该很简单，只是我比较菜而已，这里'utf-8&#3

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Release： 2016-06-06 19:40:39
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@半分微醉: utf-8是一种编码格式，不同编码格式一般对于不同的字节数，特别是对于咱们的中文。下面贴一下一个兄弟的测试资料，详见：http://learnmore.iteye.com/blog/246039 英文字母：A 字节数：1;编码：GB2312 字节数：1;编码：GBK 字节数：1;编码：GB180

@半分微醉: utf-8是一种编码格式，不同编码格式一般对于不同的字节数，特别是对于咱们的中文。下面贴一下一个兄弟的测试资料，详见：http://learnmore.iteye.com/blog/246039

英文字母：A
字节数：1;编码：GB2312
字节数：1;编码：GBK
字节数：1;编码：GB18030
字节数：1;编码：ISO-8859-1
字节数：1;编码：UTF-8
字节数：4;编码：UTF-16
字节数：2;编码：UTF-16BE
字节数：2;编码：UTF-16LE

中文汉字：人
字节数：2;编码：GB2312
字节数：2;编码：GBK
字节数：2;编码：GB18030
字节数：1;编码：ISO-8859-1
字节数：3;编码：UTF-8
字节数：4;编码：UTF-16
字节数：2;编码：UTF-16BE
字节数：2;编码：UTF-16LE

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