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9.0

Refresh page without losing form data

Asked by CSS_Guy in PHP Scripting Language, JavaScript

Tags: PHP

Hi Experts,

I have a form that uses a basic CAPTCHA to prevent spam. Everything works fine. Problem is, when the user inputs a wrong code, and then returns to the form to re-enter the correct code, all of their data they entered is lost.

Can you please help me with some PHP code that will save the users information, so that if they return to the form, all of their data will still be there?

I really appreciate your help.


Code is below, here is the form in action: http://s62715.gridserver.com/backend/employees/feedback.php 
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----- FORM ------
 
<form method="post" action="feedback-process.php" id="form1" name="form1">
                <table class="tbl-awards" cellpadding="0" cellspacing="0" id="bold">
                <tr><td valign="top">
                <strong>First Name</strong><br /><input type="text" class="text" name=""/><br /><br />
                <strong>Last Name</strong><br /><input type="text" class="text" name=""/><br /><br />
                </td>
                
                <td>
                <strong>Email</strong><br /><input type="text" class="text" name=""/><br /><br />
                <strong>Phone</strong><br /><input type="text" class="text" name=""/><br /><br />
                </td>
                </tr>
                
                <tr>
                <td colspan="2"><strong>Comments</strong><br /><textarea class="text2"></textarea></td>
                </tr>
                
                <tr>
                <td colspan="2"><strong>Please verify this code</strong><br /><img src="captcha.php" style="padding:10px 0;"/><br /><input type="text" name="security" class="text" /></td>
                </tr>
                </table>
                
                </form>
 
            	<a href="#" class="single_btn" onclick="document.form1.submit();">Submit</a>
 
 
 
 
 
 
 
----- FORM PROCESS ------
 
<?php
	session_start();
	if (md5($_POST['security']) == $_SESSION['randomnr2'])	{ 
		// here you  place code to be executed if the captcha test passes
			echo "Hey great , it appears you are not a robot";
	}	else {  
		// here you  place code to be executed if the captcha test fails
			echo "<strong style='font-family:arial,sans-serif;'>Invalid Security Code.<br /><br /><a href='#' onclick='history.go(-1);return false;'>Click Here</a> to re-enter the code.</strong>";
	}
?>
 
 
 
 
 
 
------- CAPTCHA.PHP ------
 
<?php
	session_start();
 
	// generate random number and store in session
 
	$randomnr = rand(1000, 9999);
	$_SESSION['randomnr2'] = md5($randomnr);
 
	//generate image
	$im = imagecreatetruecolor(90, 38);
 
	//colors:
	$white = imagecolorallocate($im, 255, 255, 255);
	$grey = imagecolorallocate($im, 128, 128, 128);
	$black = imagecolorallocate($im, 0, 0, 0);
	$blue = imagecolorallocate($im, 16, 33, 77);
 
	imagefilledrectangle($im, 0, 0, 200, 40, $blue);
 
	//path to font:
 
	$font = 'AllerDisplay.ttf';
 
	//draw text:
	imagettftext($im, 18, 0, 20, 24, $grey, $font, $randomnr);
 
	imagettftext($im, 18, 0, 18, 26, $white, $font, $randomnr);
 
	// prevent client side  caching
	header("Expires: Wed, 1 Jan 1997 00:00:00 GMT");
	header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
	header("Cache-Control: no-store, no-cache, must-revalidate");
	header("Cache-Control: post-check=0, pre-check=0", false);
	header("Pragma: no-cache");
 
	//send image to browser
	header ("Content-type: image/gif");
	imagegif($im);
	imagedestroy($im);
?>
[+][-]09/11/09 06:20 PM, ID: 25314647Accepted Solution

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About this solution

Zones: PHP Scripting Language, JavaScript
Tags: PHP
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Solution Provided By: andoneknight
Participating Experts: 1
Solution Grade: A
 
[+][-]09/11/09 05:52 PM, ID: 25314573Expert Comment

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[+][-]09/11/09 05:54 PM, ID: 25314579Expert Comment

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[+][-]09/11/09 06:00 PM, ID: 25314602Author Comment

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[+][-]09/11/09 06:21 PM, ID: 25314651Expert Comment

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[+][-]09/11/09 06:55 PM, ID: 25314734Author Comment

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[+][-]09/11/09 07:06 PM, ID: 25314759Author Comment

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[+][-]09/11/09 07:20 PM, ID: 25314787Author Comment

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