 <?php

$email = "email.com";
$email = preg_match("/[a-zA-Z@_-]/", $email);
try
{
    if (!$email)
    {
        throw new Exception("Email is not valid!");
    } else
    {
        return 1;
    }
}
catch (exception $e)
{
    echo "Error Message: <font color='red'>" . $e->getMessage() . "</font><br />";
    echo "The error is on line: <font color='red'>" . $e->getLine() .
        "</font><br />";
    echo "The file the error is in: <font color='red'>" . $e->getFile() .
        "</font><br />";
}

?> 