Validation2 Example Source Code

Validation2 Example

Filename: validation2.htm

<html>

<head>
<title>Validation1 Example</title>
<link rel="stylesheet" type="text/css" href="../styles.css" />
</head>

<body>

<?php
    function validate_ssn($n)
    {
        $re = "[[:digit:]]{3}-[[:digit:]]{2}-[[:digit:]]{4}";
        if (ereg($re, $n))
        {
            return 1;
        }
        else
        {
            return 0;
        }
    }
?>

<h2>Validation2 Example</h2>

<form action="<?php echo "$_SERVER[PHP_SELF]"; ?>" method="post">

<?php
    if (!isset($_POST['txtSSN']))
    {
        $ssn = "";
        $name_error_message = "";
    }
    else
    {
        // Validate SSN
        $ssn = $_POST['txtSSN'];
        if (validate_ssn($ssn))
        {
	    $name_error_message = "";
        }
        else
        {
            $name_error_message = 
                "SSN is of the form ddd-dd-dddd.";
        }
    }  
?>

</form>

<p>

<?php
    if (validate_ssn($ssn))
    {
        echo "Validated SSN: $ssn <br />";
    }
?>
</p>

</body>
</html>