How to hide the middle four digits of mobile phone number in php

php method to hide the middle four digits of the mobile phone number: 1. Hide the middle four digits of the mobile phone number through the "substr_replace($num,'****',3,4);" method; 2. By automatically Just define the "yc_phone" function to hide the middle four digits.

The operating environment of this article: Windows7 system, PHP7.1 version, DELL G3 computer

php method hides the middle four digits of the mobile phone number

$num = "13966778888" $str = substr_replace($num,'****',3,4);

//自定义函数手机号隐藏中间四位 function yc_phone($str){ $str=$str; $resstr=substr_replace($str,'****',3,4); return $resstr; }

Usage in thinkphp template:

 
恭喜用户{$vo.user_id|yc_phone=###}砸金蛋获得奖金{$vo.prize}元
 

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