PHP self form validation
- by Jordan Pagaduan
<?php
function VerifyForm(&$values, &$errors)
{
if (strlen($values['fname']) == 0)
$errors['fname'] = 'Enter First Name';
if (strlen($values['lname']) == 0)
$errors['lname'] = 'Enter Last Name';
if (strlen($values['mname']) == 0)
$errors['mname'] = 'Enter Middle Name';
if (strlen($values['address']) == 0)
$errors['address'] = 'Enter Address';
if (strlen($values['terms']) == 0)
$errors['terms'] = 'Please Read Terms and Agreement and Check the box.';
if (!ereg('.*@.*\..{2,4}', $values['email']))
$errors['email'] = 'Email address invalid';
else if (strlen($values['email']) < 0)
$errors['email'] = 'Enter Email Address';
return (count($errors) == 0);
}
function DisplayForm($values, $errors)
{
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>GIA Soap » Products » Customer Informations</title>
<link href="stylesheet/style.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="js_files/jquery.js"></script>
<script type="text/javascript" src="js_files/sliding_effect.js"></script>
<script type="text/javascript" src="js_files/slideshow.js"></script>
</head>
<body>
<div class="bg_top">
<div class="bg_bottom">
<div class="wrapper">
<div class="header">
<div class="logo">
</div>
<div class="logo_text">
<div class="logo_head_text">Gia Soap Making</div>
<div class="logo_sub_text">Sub text here</div>
</div>
</div>
<div class="h_nav">
<div class="h_nav_dash">
</div>
</div>
<div class="container">
<div class="content_term">
<div class="content_terms">
<br />
<h1><p>Customer Information</p></h1><br />
<p>Please the following correctly.</p>
<div class="customer_info">
<?php
if (count($errors) > 0)
echo "<p>There were some errors in your submitted form, please correct them and try again.</p>";
?>
<form method="post" action="<?= $_SERVER['PHP_SELF'] ?>">
<!-- hidden values -->
<input type="hidden" value="<?php echo $papaya; ?>" name="papaya" />
<input type="hidden" value="<?php echo $carrot; ?>" name="carrot" />
<input type="hidden" value="<?php echo $guava; ?>" name="guava" />
<label for="customer_fname">First Name (<i>Required</i>)</label>
<input type="text" class="textbox" id="customer_fname" name="customer_fname" value="<?= htmlentities($values['fname']) ?>" />
<span class="error_msg"><?= $errors['fname'] ?></span>
<label for="customer_lname">Last Name (<i>Required</i>)</label>
<input type="text" class="textbox" id="customer_fname" name="customer_fname" value="<?= htmlentities($values['lname']) ?>" />
<span class="error_msg"><?= $errors['lname'] ?></span>
<label for="customer_mname">Middle Name (<i>Required</i>)</label>
<input type="text" class="textbox" id="customer_fname" name="customer_fname" value="<?= htmlentities($values['mname']) ?>" />
<span class="error_msg"><?= $errors['mname'] ?></span>
<label for="customer_add">Address (<i>Required : Complete Address Please</i>)</label>
<input type="text" class="textbox" id="customer_add" name="customer_add1" value="<?= htmlentities($values['address']) ?>" /><br />
<input type="text" class="textbox" id="customer_add" name="customer_add2" /><br />
<input type="text" class="textbox" id="customer_add" name="customer_add3" />
<span class="error_msg"><?= $errors['address'] ?></span>
<label for="customer_email">Email Address (<i>Required</i>)</label>
<input type="text" class="textbox" id="customer_email" name="customer_email" value="<?= htmlentities($values['email']) ?>" />
<span class="error_msg"><?= $errors['email'] ?></span>
<label for="customer_phone">Phone Number </label>
<input type="text" class="textbox" id="customer_phone" name="customer_phone" />
<label for="customer_mobile">Mobile Number </label>
<input type="text" class="textbox" id="customer_mobile" name="customer_mobile" />
<br /><br />
<div class="terms">
<center>
<h1>Terms and Agreement</h1><br />
<p>Please read the following.</p><br />
</div>
<br />
<input type="checkbox" name="terms" value="<?= htmlentities($values['terms']) ?>" /> I Read the Terms and Agreement<br /><br />
<span class="error_msg"><?= $errors['terms'] ?></span>
<input type="submit" value="Send Order" class="prod_subbtn" />
</center>
</form>
</div>
</div>
</div>
<div class="clear"></div>
</div>
<?php include ('includes/footer.php'); ?>
</div>
</div>
</div>
</body>
</html>
<?php
}
function ProcessForm($values)
{
$papaya = $_POST['papaya'];
$carrot = $_POST['carrot'];
$guava = $_POST['guava'];
$fname = $_POST['fname'];
$lname = $_POST['lname'];
$mname = $_POST['mname'];
$address = $_POST['address'];
}
if ($_SERVER['REQUEST_METHOD'] == 'POST')
{
$formValues = $_POST;
$formErrors = array();
if (!VerifyForm($formValues, $formErrors))
DisplayForm($formValues, $formErrors);
else
ProcessForm($formValues);
}
else
DisplayForm(null, null);
?>
The output is:
[link text]1
Problem
the value that I put is can be seen by users.
