language: PHP (php 5.4.4)
date: 872 days 5 hours ago
link:
visibility: public 
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<?php
$email   = "local@test.com";
$pattern = "/^([a-z0-9\+_\-]+)(\.[a-z0-9\+_\-]+)*@([a-z0-9\-]+\.)+[a-z]{2,6}$/ix";
 
if (false == preg_match($pattern, $email))
    echo "false";
else
    echo "match!";
 
?>