PHP Development Tips (11)-Sample code for php to implement mobile phone number display part

From the perspective of personal information protection, we will always find ways to protect some of the users' personal information during the development process. As mentioned in this blog post, we sometimes display only part of the user's mobile phone number. This is a function that many websites have. This function is also very simple to implement. We only need to intercept the mobile phone number and then fill in the middle part with "*".

The following is the implementation code:

<?php  
/** 
 * ======================================= 
 * Created by Zhihua_W. 
 * Author: Zhihua_W 
 * Date: 2017/2/8 0007 
 * Time: 上午 8:34 
 * Project: PHP开发小技巧 
 * Power: php实现手机号码部分显示 
 * ======================================= 
 */  
  
$mobile = "18000000001";  
//保留前三位和后三位   
$new_mobile = substr($mobile, 0, 3) . &#39;*****&#39; . substr($mobile, 8, strlen($mobile));  
  
echo $new_mobile;  
//结果输出：180*****001

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