PHP截取汉字乱码问题解决方法mb_substr函数的应用
首先
1.确保你的Windows/system32下有php_mbstring.dll这个文件,没有就从你Php安装目录extensions里拷入Windows/system32里面。
2.在windows目录下找到php.ini打开编辑,搜索mbstring.dll,找到
;extension=php_mbstring.dll把前面的;号去掉,这样mb_substr函数就可以生效了
mb_strcut函数功能也可以截取字符串长度,下面实例具体看看区别在哪:
复制代码 代码如下:
$str = '这样一来我的字符串就不会有乱码^_^';
echo "mb_substr:" . mb_substr($str, 0, 7, 'utf-8');
//结果:这样一来我的字
echo "
";
echo "mb_strcut:" . mb_strcut($str, 0, 6, 'utf-8');
//结果:这样
?>
从上面的例子可以看出,mb_substr是按字来切分字符,而mb_strcut是按字节来切分字符,但是都不会产生半个字符的现象。

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