     <?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 />";
    }

    ?> 
