php截取中文字符串不乱码的方法_php实例
利用php内置方法mb_substr截取中文不乱码,使用起来非常简单,大家参考使用吧
GBK编码截取示例
代码如下:
$str = '我是谁'; //gbk编码的字符串 echo mb_substr($str, 0, 1, 'gbk'); //输出 我
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mb_substr方法比substr多一个参数,用来指定字符串编码。
utf-8编码截取示例
[code]
$str = '我abc是谁'; //utf-8编码的字符串
echo mb_substr($str, 0, 2, 'utf-8'); //输出 我a
[/code
中英混合也完全没有问题。
友情提示
使用的时候要注意php文件的编码,和网页显示时的编码。
使用这个mb_substr方法要事先知道字符串的编码,如果不知道编码,就需要判断,mbstring库还提供了mb_check_encoding来检验字符串编码,但还不完善。
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