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.
So I want [email protected] to become abcdl******@hotmail.com.
As a test I wrote:
<?php
$email = "[email protected]";
$em = explode("@",$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 $new_name;
This works, but I was wondering if there was any easier/shorter way of applying the same logic? Like a regex maybe?
here's something quick:
function obfuscate_email($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:
$emails = ['"Abc\@def"@iana.org', '[email protected]'];
foreach ($emails as $email)
{
echo obfuscate_email($email) . "\n";
}
echoes:
"Abc\*****@iana.org
abcdl*****@hotmail.com
uses substr() and str_repeat()
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