Below is my code and the end of the program is all my problems.... I hopeful its only a problem but knowing my luck its more than just one thing...
<?php
//Validation functions are located in a separate file so they can be reused
//on several php pages.
session_start();
include_once('ValidationUtilities.php');
//retrieve values from form
$firstName = filter_input(INPUT_GET,'firstName');
$lastName = filter_input(INPUT_GET,'lastName');
$age = filter_input(INPUT_GET,'age');
$email = filter_input(INPUT_GET,'email');
$state = filter_input(INPUT_GET,'state');
?>
<!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>Validate User Inputs</title>
<link href="styles_validate.css" rel="stylesheet" type="text/css">
</head>
<body>
<div class="pageContainer">
<h2>Validate User Inputs</h2><hr>
<?php
$pageValid = true;
$postback = $_GET['postback'];
if ($pageValid == true && $postback)
?>
<form>
<?php
$firstName = $_GET['firstName'];
?>
Please enter your first name:<br>
<input type="text" name="firstName" size="25" value="<?php echo "$firstName"; ?>"><br>
<?php
echo "" . fValidateName($firstName) . "";
?>
<?php
$lastName= $_GET['lastName'];
?>
Please enter your last name:<br>
<input type="text" name="lastName" size="25" value="<?php echo "$lastName"; ?>"><br>
<?php
echo "" . lValidateName($lastName) . "";
?>
<?php
$age= $_GET['age'];
?>
Please enter your age (13-99):<br>
<input type="text" name="age" size="5" value="<?php echo "$age"; ?>"><br>
<?php
echo "" . fIsAge($age) . "";
?>
<?php
$email= $_GET['email'];
?>
Please enter your email address:<br>
<input type="text" name="email" size="25" value="<?php echo "$email"; ?>"><br>
<?php
echo "" . fIsEmail($email) . "";
?>
<?php
$state= $_GET['state'];
?>
Please enter your state abbreviation:<br>
<input type="text" name="state" size="2" value="<?php echo "$state"; ?>"><br>
<?php
echo "" . fIsStateAbbr($state) . "";
?>
<input type="hidden" name="postback" value="true">
<input type="submit" value="Submit your info!">
</form>
<?php
//$PageIsValid$PageIsValid is a flag to indicate if all form items are valid
if($IsPostBack && $IsValidPage)
echo "<h3>Success</h3>";
?>
<p><a href="Validate.php"?">Reload page</a></p>
</div>
</body>
</html>
<?php
// Validation functions
// All functions return true or false
//Name Validation
function fValidateName($firstName) {
if ($postback && strlen($firstName) == 0) {
echo "<font color='red'>Please enter your first name (alpha characters only)</font>";
$pageValid = false;
}
}
function lValidateName($lastName) {
if ($postback && strlen($lastName) == 0) {
echo "<font color='red'>Please enter your last name (alpha characters only)</font>";
$pageValid = false;
}
}
//Age Validation
function fIsAge($age) {
if ($postback && ($age<13||$age>99)||strlen($age) == 0) {
echo "<font color='red'>Please enter a valid age (13-99) </font>";
$pageValid = false;
}
}
//Email Validation
function fIsEmail($email) {
$pattern = "^[\w!#$%*_\-/?|\^\{\}'~\.]+@(\w+\.)+\w{2,4}^";
if ($postback && !(preg_match($pattern, $email))) {
echo "<font color='red'>Please enter a valid email address (xx@xx.xxx)</font>";
$pageValid = false;
}
}
//State Validation
function fIsStateAbbr($state){
$ValidAbbr = array("AL","AK","AZ","AR","CA","CO","CT","DE","FL","GA","HI","ID","IL",
"IN","IA","KS","KY","LA","ME","MD","MA","MI","MN","MS","MO","MT","NE","NV","NH",
"NJ","NM","NY","NC","ND","OH","OK","OR","PA","RI","SC","SD","TN","TX","UT","VT",
"VA","WA","WV","WI","WY");
$state = strtoupper($state);
//in_array() checks if a value exists in an array.
if (in_array($state, $ValidAbbr)) {
} else {echo "<font color='red'>Please enter a valid state abbreviation</font>";
$pageValid = false;
}
}
?>
then my output is:
Validate User Inputs
Notice: Undefined index: postback in C:\xampp\htdocs\web3\validate.php on line 33
Top of Form
Notice: Undefined index: firstName in C:\xampp\htdocs\web3\validate.php on line 38
Please enter your first name:
Notice: Undefined variable: postback in C:\xampp\htdocs\web3\ValidationUtilities.php on line 9
Notice: Undefined index: lastName in C:\xampp\htdocs\web3\validate.php on line 47
Please enter your last name:
Notice: Undefined variable: postback in C:\xampp\htdocs\web3\ValidationUtilities.php on line 15
Notice: Undefined index: age in C:\xampp\htdocs\web3\validate.php on line 57
Please enter your age (13-99):
Notice: Undefined variable: postback in C:\xampp\htdocs\web3\ValidationUtilities.php on line 22
Please enter a valid age (13-99)
Notice: Undefined index: email in C:\xampp\htdocs\web3\validate.php on line 68
Please enter your email address:
Notice: Undefined variable: postback in C:\xampp\htdocs\web3\ValidationUtilities.php on line 30
Notice: Undefined index: state in C:\xampp\htdocs\web3\validate.php on line 78
Please enter your state abbreviation:
Please enter a valid state abbreviation
Bottom of Form
Notice: Undefined variable: IsPostBack in C:\xampp\htdocs\web3\validate.php on line 93