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PHP截断函数mb_substr()详细介绍

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Release: 2016-06-13 11:19:47
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在php中mb_substr()函数是用来截中文与英文的函数,可以方便快速的解决截取指定字符长度的问题,下面我来给大家介绍介绍。  

提示:mb_substr在于php中是默认不被支持的我们需要在在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;号去掉才可以使用mb_substr函数哦。

Function: mb_substr( $str, $start, $length, $encoding )
 
 $str,需要截断的字符串
 $start,截断开始处
 $length,长度(注意,这个跟mb_strimwidth不同,1就代表一个中文字符)
 $encoding,编码,我设为 utf-8
 
例:截断文章标题,控制在15个文字

 代码如下 复制代码

 
$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
?>

总结出现来他是可以解决截取中文汉字哦


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