- explode: documentation ( source)
- preg_replace: documentation ( source)
<?php
function maskEmail($email)
{
$arremail = explode('@',$email);
//$email1 = preg_replace('/(?<=.).(?=.*@)/u','*',$arremail[0].'@')
$email2 = preg_replace('/(?<=.).(?=.*\.)/u','*',$arremail[1]);
echo $email2;
}
$email = 'facebook@yahoo.com';
$result = maskEmail($email);