Home  >  Article  >  Backend Development  >  PHP regular expression implements the display function of replacing the middle 4 digits of a mobile phone number with asterisks

PHP regular expression implements the display function of replacing the middle 4 digits of a mobile phone number with asterisks

黄舟
黄舟Original
2017-10-28 09:17:582462browse

因为需要为客户保持隐私,所以手机号码不能完全显示在网站上,但是又不能不显示,所以就很多网站想到了显示但是不完整显示,在上面用星号替换部分显示,其实做到这个很简单,用正则替换显示其中的一部分即可。

Method 1:


function hidtel($phone){
 $IsWhat = preg_match('/(0[0-9]{2,3}[\-]?[2-9][0-9]{6,7}[\-]?[0-9]?)/i',$phone); //固定电话
 if($IsWhat == 1){
 return preg_replace('/(0[0-9]{2,3}[\-]?[2-9])[0-9]{3,4}([0-9]{3}[\-]?[0-9]?)/i','$1****$2',$phone);
 }else{
 return preg_replace('/(1[358]{1}[0-9])[0-9]{4}([0-9]{4})/i','$1****$2',$phone);
 }
}

Method 2:

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

实例: 

$phonenum = "13966778888";
echo hidtel($phonenum);

最后输出:139****8888

总结

The above is the detailed content of PHP regular expression implements the display function of replacing the middle 4 digits of a mobile phone number with asterisks. For more information, please follow other related articles on the PHP Chinese website!

Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn