PHP Development Tips (10) - How to intercept Chinese strings without garbled characters

During development, we often intercept strings as needed. If it is a string of English strings, it is fine, and there will be no garbled characters when we intercept it; but if it is a Chinese string, many times it will be intercepted based on the intercepted string. If the length is inappropriate, garbled characters will appear. Let’s implement a method to intercept Chinese strings without garbled characters:

<?php  
  
/** 
 * ======================================= 
 * Created by Zhihua_W. 
 * Author: Zhihua_W 
 * Date: 2017/1/7 0009 
 * Time: 下午 4:10 
 * Project: PHP开发小技巧 
 * Power: 实现中文字串截取无乱码的方法 
 * ======================================= 
 */  
  
/** 
 * 实现中文字串截取无乱码的方法 
 * @param int $start 起始位置 
 * @param int $length 长度 
 * @return string 
 */  
function getSubstr($string, $start, $length)  
{  
    if (mb_strlen($string, &#39;utf-8&#39;) > $length) {  
        $str = mb_substr($string, $start, $length, &#39;utf-8&#39;);  
        return $str . &#39;...&#39;;  
    } else {  
        return $string;  
    }  
}  
  
?>

Related articles:

A small function that inserts a string at a specified position in the string

php custom interception of Chinese strings-utf8 version

Detailed code explanation of the calculation formula for string format through eval in php

The above is the detailed content of PHP Development Tips (10) - How to intercept Chinese strings without garbled characters. For more information, please follow other related articles on the PHP Chinese website!