在PHP中部分隐藏电子邮件地址 [英] Partially hide email address in PHP

问题描述

我正在构建一个简单的朋友/好友系统，当有人尝试搜索新朋友时，我想显示部分隐藏的电子邮件地址，以便在不透露实际详细信息的情况下提供关于用户的身份的想法

I am building a simple friend/buddy system, and when someone tries to search for new friends, I want to show partially hidden email addresses, so as to give an idea about who the user might be, without revealing the actual details.

所以我希望[e-mail]成为abcdl******@hotmail.com.

作为测试，我写道:

<?php
$email = "[e-mail]";

$em = explode("@",$email);
$name = $em[0];
$len = strlen($name);
$showLen = floor($len/2);
$str_arr = str_split($name);
for($ii=$showLen;$ii<$len;$ii++){
    $str_arr[$ii] = '*';
}
$em[0] = implode('',$str_arr); 
$new_name = implode('@',$em);
echo $new_name;

这可行，但是我想知道是否有更简单/更短的方法来应用相同的逻辑?可能像正则表达式一样?

This works, but I was wondering if there was any easier/shorter way of applying the same logic? Like a regex maybe?

推荐答案

以下是一些快速的方法:

here's something quick:

function obfuscate_email($email)
{
    $em   = explode("@",$email);
    $name = implode('@', array_slice($em, 0, count($em)-1));
    $len  = floor(strlen($name)/2);

    return substr($name,0, $len) . str_repeat('*', $len) . "@" . end($em);   
}

// to see in action:
$emails = ['"Abc\@def"@iana.org', '[e-mail]'];

foreach ($emails as $email) 
{
    echo obfuscate_email($email) . "\n";
}

回声:

"Abc\*****@iana.org
abcdl*****@hotmail.com

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