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PHP - Captcha Php Session Error
SO I have been developing a log in system and wanted to make my own simple CAPTCHA. I found one on the internet and ported the code across to get started and see how someone had made it. The issue I am having is that the dynamically generated image that I have created it seems is one step ahead of the session variable (the string is generated and then saved into session - then generates the image). But when i echo back the session it is always one step behind the actual image... Anyway here is my code and ask away please
<?php
require('includes/util.inc.php');
$form = '
<form action="register.php" method="post">
<p>username <input type="text" name="username" id="usrinp"></p>
<p>email <input type="text" name="email" id="emainp"></p>
<p>password <input type="password" name="password1" id="psw1inp"></p>
<p>re-enter password <input type="password" name="password2" id="psw2inp"></p>
<p><img src="captcha.php"/></p>
<p>captcha <input type="text" name="captcha" id="capinp"></p>
<p><input type="submit" value="Register" id="subinp"></p>
</form>
';
if(isset($_SESSION['captcha'])) {
echo $_SESSION['captcha'];
}
if ($_SERVER['REQUEST_METHOD'] == 'POST' && !empty($_POST['username']) && !empty($_POST['email'])) {
if($_POST['captcha'] == $_SESSION['captcha']) {
$username = $_POST['username'];
$email = $_POST['email'];
$password = SHA1($_POST['password1']);
$password = SHA1($_POST['password2']);
$q = 'SELECT username FROM users WHERE username = :username';
$stmt = $pdo->prepare($q);
$stmt->bindParam(':username', $username);
$stmt->execute();
if($stmt->rowCount() > 0) {
echo "<pre>This username has already been taken</pre>";
} else {
$qi = 'INSERT INTO users ( username, password, email ) VALUES ( :username, SHA1(:password), :email )';
$query = $pdo->prepare($qi);
$result = $query->execute( array( ':username'=>$username, ':password'=>$password, ':email'=>$email ) );
if($result) {
header("location:login.php");
exit;
} else {
echo '<pre>Error, please try again</pre>';
}
}
}
}
$pageTitle = 'Register';
include('includes/header.inc.php');
include('pages/register.html');
?>
<?php
require('includes/util.inc.php');
$string = '';
for ($i = 0; $i < 5; $i++) {
$string .= chr(rand(97, 122));
}
$_SESSION['captcha'] = $string;
$font_path = 'includes/fonts/';
$captcha_image = imagecreatetruecolor(150, 60);
$text_color = imagecolorallocate($captcha_image, 0, 0, 0);
$bg_color = imagecolorallocate($captcha_image, 255, 255, 255);
imagefilledrectangle($captcha_image, 0, 0, 399, 99, $bg_color);
imagettftext($captcha_image, 30, 0, 10, 40, $text_color, $font_path . "dashdot.ttf", $_SESSION['captcha']);
header("Content-type: image/png");
imagepng($captcha_image);
?>
<?php
session_start();
function class_loader($class) {
require 'classes/' . $class . '.class' . '.php';
}
spl_autoload_register('class_loader');
$user = (isset($_SESSION['user'])) ? $_SESSION['user'] : null;
$cat = (isset($_SESSION['cat'])) ? $_SESSION['cat'] : null;
try {
$pdo = new PDO('mysql:dbname=phpcat; host=localhost', 'root', '');
} catch (PDOException $e) {
$pageTitle = 'Error!';
include('header.inc.php');
include('../pages/error.html');
exit();
}
Similar Tutorialscan anyone see the problem here i am running php 5.3 on my server and GD seems to be enabled. and my host said it was probably something to do with the captcha files or script. <?php session_start(); /* * File: CaptchaSecurityImages.php * Author: Simon Jarvis * Copyright: 2006 Simon Jarvis * Date: 03/08/06 * Updated: 2007-08-12 by Jenny Ferenc (minor visual changes only) * Requirements: PHP 4/5 with GD and FreeType libraries * Link: http://www.white-hat-web-design.co.uk/articles/php-captcha.php * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details: * http://www.gnu.org/licenses/gpl.html * */ class CaptchaSecurityImages { var $font = 'VeraSe.ttf'; function generateCode($characters) { /* list all possible characters, similar looking characters and vowels have been removed */ $possible = '23456789bcdfghjkmnpqrstvwxyz'; $code = ''; $i = 0; while ($i < $characters) { $code .= substr($possible, mt_rand(0, strlen($possible)-1), 1); $i++; } return $code; } function CaptchaSecurityImages($width=130, $height=40, $characters=6) { $code = $this->generateCode($characters); // font size will be 60% of the image height $font_size = $height * 0.6; $image = @imagecreate($width, $height) or die('Cannot initialize new GD image stream'); // set the colours $background_color = imagecolorallocate($image, 255, 255, 255); $text_color = imagecolorallocate($image, 20, 40, 100); $noise_color = imagecolorallocate($image, 100, 120, 180); // generate random dots in background for( $i=0; $i<($width*$height)/3; $i++ ) { imagefilledellipse($image, mt_rand(0,$width), mt_rand(0,$height), 1, 1, $noise_color); } // generate random lines in background for( $i=0; $i<($width*$height)/150; $i++ ) { imageline($image, mt_rand(0,$width), mt_rand(0,$height), mt_rand(0,$width), mt_rand(0,$height), $noise_color); } // create textbox and add text $textbox = imagettfbbox($font_size, 0, $this->font, $code) or die('Error in imagettfbbox function'); $x = ($width - $textbox[4])/2; $y = ($height - $textbox[5])/2; imagettftext($image, $font_size, 0, $x, $y, $text_color, $this->font , $code) or die('Error in imagettftext function'); // output captcha image to browser header('Content-Type: image/jpeg'); imagejpeg($image); imagedestroy($image); $_SESSION['security_code'] = $code; } } $captcha = new CaptchaSecurityImages(); ?> this seems to be the problem line he Code: [Select] $textbox = imagettfbbox($font_size, 0, $this->font, $code) or die('Error in imagettfbbox function'); [\code] Hi, i've got a strange problem: i get this errors: Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at e:\Internet\pmtopagents\test.php:1) in e:\Internet\pmtopagents\test.php on line 3 Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at e:\Internet\pmtopagents\test.php:1) in e:\Internet\pmtopagents\test.php on line 3 but in my test.php is nothing else than: <?php session_start(); ?> there is no space in front of <?php where could be the error? best hi all, I have a form that pass some $_POST values to a page that sets a session like this: session_start(); $_SESSION['TESTE'] = array ($_POST['sexo'],$_POST['nome'],$_POST['senha'],$_POST['senha2'],$_POST['login']); header ("Location: dddl.php"); Then the dddl.php should print the values on this line: print_r ($_SESSION['TESTE']) ; But when i run the application the dddl.php page returns this error: Notice: Undefined variable: _SESSION in C:\Users\Danilo\wamp\www\CNTur\dddl.php on line 2 Why it's not setting or why can't I reach the values? When I run the following code on the same page the session values are returned correctly: session_start(); $_SESSION['TESTE'] = array ($_POST['sexo'],$_POST['nome'],$_POST['senha'],$_POST['senha2'],$_POST['login']); print_r ($_SESSION['TESTE']) ; Thankx Danilo Jr. It is my understanding that <?php session_start (); ?> must go on the very first line otherwise "it won't work." But mine still isn't working, and I'm not sure why. These errors were returned EVEN AFTER I deleted everything in index.php except <? session_start (); ?>.... Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /home/xxx/public_html/xxx/xxx/index.php:1) in /home/xxx/public_html/xxx/xxx/index.php on line 1 Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/xxx/public_html/xxx/xxx/index.php:1) in /home/xxx/public_html/xxx/xxx/index.php on line 1 hey, i have this code: Code: [Select] <?php //-------------------------------- // Starting our session //-------------------------------- session_start(); //-------------------------------- // load database connection //-------------------------------- require "connect.php"; //-------------------------------- // Make some checks if the admin // Are loged in //-------------------------------- if ( ! isset($_SESSION['admin']) || ! isset($_SESSION['name']) ) { require "login.php"; die(); } if ( $_SESSION['admin'] != 1 || $_SESSION['name'] == "" ) { require "login.php"; die(); } if ( $core->input['act'] == logout ) { unset($_SESSION['admin']); unset($_SESSION['name']); session_destroy(); header('Location: index.php'); } ?> im trying to set a simple session, but i getting this error: Quote Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /home/rangreiss/domains/greissdesign.com/public_html/articles/admin.php:1) in /home/rangreiss/domains/greissdesign.com/public_html/articles/admin.php on line 7 Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/rangreiss/domains/greissdesign.com/public_html/articles/admin.php:1) in /home/rangreiss/domains/greissdesign.com/public_html/articles/admin.php on line 7 but as you can see i put the session start in the top of the file... any ideas? Thanks! I don't know how to solve this error;
Parse error: syntax error, unexpected '$db' (T_VARIABLE)
code:
I am so glad someone told me about putting in the error_reporting ALL because I was not sure why my id for members was not picking up on the next pages. Can someone let me know how I can fix this I thought it automatically picks it up and sets it to private pages for each member. Notice: Undefined index: id in /home/ebermy5/public_html/login.php on line 25 <?php session_id(); session_start(); ?> <!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>Welcome</title> </head> <body> <?php /* Program: New_member.php * Desc: Displays the new member welcome page. Greets * member by name and gives a choice to enter * restricted section or go back to main page. */ error_reporting(E_ALL); ini_set("display_errors", 1); $firstname = ''; include('Connections/connect_to_mysql.php'); $result = mysql_query("SELECT firstname FROM `Members` WHERE id='{$_SESSION['id']}'"); $row = mysql_fetch_array($result); if ($firstname == ''){ //condition, is name equal to lower case firstname notice we use == and not = echo "Welcome, $firstname"; } else { //so incase the condition is not as expected echo "Sorry you are not $firstname"; } ?> <p>Your new Member accounts lets you enter the members only section of our web site. You'll find special discounts, a profile of matches, live advise from experts, and much more.</p> <p>Your new Member ID and password were emailed to you. Store them carefully for future use.</p> <div style="text-align: center"> <p style="margin-top: .5in; font-weight: bold"> Glad you could join us!</p> <form action="profile.php" method="post"> <input type="submit" value="Enter the Members Only Section"> </form> <form action="index.php" method="post"> <input type="submit" value="Go to eBermylove Main Page"> </form> </div> </body> </html> Hi, I have this script which does what it is meant to do. I have assigned session_id() to the variable $sid so I can use it when logging in to a users account, however I get this error. How do I get around this? Warning: Unknown: Your script possibly relies on a session side-effect which existed until PHP 4.2.3. Please be advised that the session extension does not consider global variables as a source of data, unless register_globals is enabled. You can disable this functionality and this warning by setting session.bug_compat_42 or session.bug_compat_warn to off, respectively. in Unknown on line 0 As this is going to be installed on many servers, I do not want to have to edit the php.ini file on each one so as not to get this error. Is there an alternative way to assign the session_id() as so $sid = session_id(); so this doesnt happen? Code: [Select] <div id="pageNav"> <div id="sectionLinks"> <a href="admin.php?cmd=manage1&username=admin">Manage</a> <a href="admin.php?cmd=dashboard&username=admin">Dashboard</a> <a href="admin.php?cmd=msgcenter&username=admin">Message Center </a> <a href="admin.php?cmd=manage&username=logins">Logins</a> </div> </div> <div id="content"> <div class="page"> <table width="100%" border="1" align="center"> <td bgcolor="#99FF66"><div align="center"><span class="style3">Login</span></div></td> <td bgcolor="#99FF66"><div align="center"><span class="style3">Name</span></div></td> <td bgcolor="#99FF66"><div align="center"><span class="style3">Registration Date </span></div></td> <td bgcolor="#99FF66"><div align="center"><span class="style3">Approved </span></div></td> <td bgcolor="#99FF66"><div align="center"><span class="style3">Reset Password </span></div></td> <td bgcolor="#99FF66"><div align="center"><span class="style3">Delete</span></div></td> </tr> <?php session_start(); $sid = session_id(); session_register('sid'); include_once("data/mysql.php"); $mysqlPassword = (base64_decode($mysqlpword)); $db = mysql_connect("$localhost", "$mysqlusername", "$mysqlPassword") or die ("Error connecting to database"); mysql_select_db("$dbname", $db) or die ("An error occured when connecting to database"); $result = mysql_query("SELECT * FROM members"); while($row = mysql_fetch_assoc($result)){ echo "<tr><td><a href=templates/members/home.php?username=".$row['username']."&sid=$sid>".$row['username']."</a></td> <td>".$row['firstname']." ".$row['lastname']."</td> <td>".$row['registration_date']."</td> <td><a href=admin.php?cmd=approval&username=".$row['username']."&approved=".$row['approved'].">".$row['approved']."</a></td> <td><a href=templates/members/changepw.php?username=".$row['username']."&sid=$sid>Change Password</a></td> <td><a href=templates/members/delete.php?username=".$row['username']."&sid=$sid>Delete</a></td></tr>"; } ?> </div> </div> </div> <tr> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> </table> </div> </div> </div> Many Thanks Paul I am using the following code in PDO query
$this->query('SELECT * FROM users WHERE id = :id'); // line 11
$this->bind(':id', $_SESSION['users']['id']); // line 12
it is working on local server, but on live server its giving some error or warning (i am not sure) PHP Notice:  Undefined index: users in ... on line 12 but the query is still working correctly. Please guide me what should i do to stop getting this error or warning or notice. Thanks🙂 Is it a good practice to store error and success messages in SESSION?
Folder pages/giftCards ->index.php ->viewGiftCardCodes.php ->redeemGiftCard.php ->giftCards.php index.php
<?php
if(defined('script') === FALSE){
exit('Hacking attempt...');
}
if(loginCheck($userInfo) === FALSE){
redirect('index.php?do=login&returnUrl='.$_SERVER['REQUEST_URI'], FALSE, TRUE);
}
if($configs['giftCardEnabled'] == 'no'){
alert('This page is currently disabled.', 'index.php?do=home');
}
$action = isset($_GET['action']) ? $_GET['action'] : '';
switch($action){
case 'redeemGiftCard';
include 'pages/giftCards/redeemGiftCard.php';
break;
case 'viewGiftCardCodes';
include 'pages/giftCards/viewGiftCardCodes.php';
break;
default:
include 'pages/giftCards/giftCards.php';
break;
}
?>
Default action giftCardsREDEEM BUTTON ................. <?php $action = '<input type="button" value="Redeem" onclick="location.href=\'index.php?do=giftCards&action=redeemGiftCard&id='.$row['id'].'¤cy='.$row['currency'].'&amount='.$row['amount'].'&csrfKey='.$csrf->csrfKey().'&csrfToken='.$csrf->csrfToken().'\'">'; ?>................. Action redeemGiftCard ................. If success
<?php
$_SESSION['message']['1'] = 'You have successfully redeemed a gift card worth '.$row['currency'].$row['amount'].'';
redirect('index.php?do=testPage1', FALSE, TRUE);// Page, Refresh, Exit //
?>
If error
<?php
$_SESSION['message']['2'] = 'Database error. Please try again later!';
redirect('index.php?do=testPage1', FALSE, TRUE);// Page, Refresh, Exit //
?>
.................Default action giftCards .................
<?php
if(!empty($_SESSION['message']['1'])){
$success = $_SESSION['message']['1'];
unset($_SESSION['message']);
}
if(!empty($_SESSION['message']['2'])){
$error = $_SESSION['message']['2'];
unset($_SESSION['message']);
}
if(!empty($success)){
print success($success);// HTML and success var //
}
if(!empty($error)){
print error($error);// HTML and error var //
}
?>
.................
SET UP: Windows vista # XAMPP 1.7.3, # Apache 2.2.14 (IPv6 enabled) + OpenSSL 0.9.8l # MySQL 5.1.41 + PBXT engine # PHP 5.3.1 # phpMyAdmin So I'm getting this error message: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '", )' at line 8. I can't see where the '", )' code is in that script. I've looked and contrl + find it but no joy. I've looked through the previous pages and mysql database to ensure the variables and the tables match up. Any help would be appreciated. Maybe some good mysql debug advice. Is there a good debug open source program out there? Any help would be appreciated. <?php //let's start our session, so we have access to stored data session_start(); include 'db.inc.php'; $db = mysql_connect('localhost', 'root', '') or die ('Unable to connect. Check your connection parameters.'); mysql_select_db('ourgallery', $db) or die(mysql_error($db)); //let's create the query $query = sprintf("INSERT INTO subscriptions ( name, email_address, membership_type, terms_and_conditions, name_on_card, credit_card_number, credit_card_expiration_data) VALUES ('%s','%s','%s','%s','%s','%s','%s')", $_SESSION['email_address'], $_SESSION['membership_type'], $_SESSION['terms_and_conditions'], $_POST['name_on_card'], $_POST['credit_card_number'], $_POST['credit_card_expiration_data']); //let's run the query mysql_query($insert_query); ?> Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/hedgehog/public_html/class/class.phpmailer.php:3005) in /home/hedgehog/public_html/admin/class/authenticate.class.php on line 15 I own a website, www.gpstudios.com Some time ago I started recieiving this error after posting comments on the playgame page/news page. Try posting comments yourself on this game: http://www.gpstudios.com/playgame.php?gameid=324 I have attached a picture of the error. Unfortunately, I have no idea when this bug appeared. It must have happened a while ago, but I never noticed. Anyone know how or why I am getting this bug? Because I'm unsure as to where/when the error occurred, I cannot supply the code. Sorry for the lack of details, but I'm hoping someone will understand this error a little better than me :S Thanks, -Tom I am getting an error message. But the program works Code: [Select] Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at C:\xampp\htdocs\Exam_Online\try.php:3) in C:\xampp\htdocs\Exam_Online\Staff_login_process.php on line 4 Wrong Username or Password my code is <Html> <?php //session_start(); include 'Staff_login_process.php'; MYSQL_CONNECT(localhost,'root','') OR DIE("Unable to connect to database"); @mysql_select_db(Examination) or die( "Unable to select database"); ?> <body> <form action="try1.php" method="post"> <?PHP $query=("SELECT * FROM User u, User_X_Subject us, Subject s WHERE u.Use_Name = '{$_SESSION['username']}' AND u.Use_ID= us.Use_ID AND s.Sub_ID=us.Sub_ID"); $result=mysql_query($query) or die ("Unable to Make the Query:" . mysql_error() ); echo "<select name=myselect>"; while($row=mysql_fetch_array($result)){ echo "<OPTION VALUE=".$row['Sub_ID'].">".$row['Sub_Name']."</OPTION>"; } echo "</select>"; ?> <input type="submit" value="submit"/> </form> </body> </html> Deprecated: Function session_register() is deprecated in /home/james/public_html/funshizzle.com/install/session.php on line 0 That is my error, I have no idea, What is it?
Hi! The file login.php and the config file containing the db connection are in the model folder and the login_view is in view folder. I am trying to make a login form am display some error messages to the user, but I don't get the error messages. Can you help me figure it out? PS: the connection to the db works fine! Thx!
LOGIN.PHP
<?php
//start the session
session_start();
foreach (glob("model/*.php") as $filename) {
include $filename;
}
//form defaults
$error["alert"]= "";
$error["user"]= "";
$error["pass"]= "";
$input["user"]= "";
$input["pass"]= "";
if(isset($_POST["submit"]))
{
//process form
if($_POST["username"] == "" || $_POST["password"] == ""){
//display errors
if($_POST["username"] == ""){$error["user"] = "required";}
if($_POST["password"] == ""){$error["pass"] = "required";}
$error["alert"] = "Please fill in the required fields";
//get the values for the username and password
$input["user"]= $_POST["username"];
$input["pass"]= $_POST["password"];
include("../views/login_view.php");
}
}else{
include("../views/login_view.php");
}
LOGIN_VIEW.PHP
<?php
session_start();
foreach (glob("model/*.php") as $filename) {
include $filename;
}
?>
<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<!------ Include the above in your HEAD tag ---------->
<!--author:starttemplate-->
<!--reference site : starttemplate.com-->
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="keywords"
content="unique login form,leamug login form,boostrap login form,responsive login form,free css html login form,download login form">
<meta name="author" content="leamug">
<title>Unique Login Form | Bootstrap Templates</title>
<link href="/styles/style.css" rel="stylesheet" id="style" type="text/css">
<!-- Bootstrap core Library -->
<link href="//netdna.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//netdna.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<!-- Google font -->
<link href="https://fonts.googleapis.com/css?family=Dancing+Script" rel="stylesheet">
<!-- Font Awesome-->
<link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet">
</head>
<body>
<!-- Page Content -->
<div class="container">
<div class="row">
<div class="col-md-offset-5 col-md-4 text-center">
<h1 class='text-white'>Login Form</h1>
<form action ="" method="POST">
<div class="form-login"></br>
</br>
<?php
if($error["alert"] != ''){
echo "<div class='alert'>".$error["alert"]."</div>";
}
?>
<div>
<input type="text" name ="username" id="userName" class="form-control input-sm chat-input" placeholder="Username" value= "<?php echo $input['user'] ?>" required/>
<?php echo $error['user'] ?>
</div>
</br></br>
<input type="text" name ="password" id="userPassword" class="form-control input-sm chat-input" placeholder="Password" value= "<?php echo $input['password'] ?>" required/>
<div class="error"> <?php echo $error['pass'] ?>
</br></br>
<div class="wrapper">
<input type="submit" class="btn btn-primary" value="submit">
</div>
</div>
</div>
</form>
</div>
</div>
</body>
</html>
 Edited October 28, 2020 by AlexaHello all, I'm new to PHP and new to this forum (although I have benefitted from your help already -cheers!). However, this time I cannot find the answer I need/recognise/understand.. I have a form and want to conduct tests on each field returning an error message as a session variable if the test fails. The test will be different for some of the fields, and the error message is specific to each field. If there is an error in any one of the fields I want to be redirected to a failure page where all of the error messages are displayed, otherwise I am sent on to another page. I have already written and tested a function to sanitise the incoming form data, so that's not a problem - it's just how to loop through and test. I can guess that there are many ways to do this but I need to understand why one option is better than another, and follow the syntax used (it's all part of my steep learning curve) The approach I have thought to use is to create an array holding the field name, the test and the message, then loop through using foreach, applying the array values into the test and creating the error message....but it's not working for me. The other method is to declare a variable $Stop='No' and if the loop identifies an error, part of the output is to change this to 'yes' and through that redirect to the error page. I'd really welcome your advice and tuition....cheers.. my code so far is... Code: [Select] $Stop='No'; $StaffPassCheck=sanitisealphanum($_POST['PasswordCheck']); $Errors[0]['value']= sanitisealphanum($_POST['FirstName']); $Errors[0]['message']='Please re-enter your name'; $Errors[0]['test']=($StaffFname=""); $Errors[1]['value']= sanitisealphanum($_POST['Surname']); $Errors[1]['message']='Please re-enter your surname'; $Errors[1]['test']=($StaffSname=""); $Errors[2]['value']= sanitisealphanum($_POST['Post']); $Errors[2]['message']='You must select an option'; $Errors[2]['test']=($StaffPost="Select Value"); $Errors[3]['value']= sanitisealphanum($_POST['Username']); $Errors[3]['message']='You must select an option'; $Errors[3]['test']=($StaffUser=""); $Errors[4]['value']= sanitisealphanum($_POST['Password']); $Errors[4]['message']='Please re-enter your password'; $Errors[4]['test']=($StaffPass=""); $Errors[5]['value']= sanitisealphanum($_POST['PasswordCheck']); $Errors[5]['message']='Sorry, your passwords do not match'; $Errors[5]['test']=($StaffPass===$StaffPassCheck); foreach ($Errors as $key => $Value){ if ( $Errors['test']=true ){ $Stop='Yes'; return $_SESSION[$key]=$Value['message']; } } if ($Stop='Yes'){ header('Location.test.php'); die(); }else{ header('Location.indexp.php'); } I want to build a captcha from scratch, as I'm all about doing things myself, and I've proposed a nice idea on how I can achieve that, but I'm sort of lost... What I want to do is write a script that will generate a random string of both letters and numbers, with the ability to set a limit on how many characters are generated. Then, I want to store that string within a variable called "random_string". Once the user types in that code, their input would get captured in a separate php file and stored within a variable like so: $captcha_code = $_POST['catpcha_code']; Then, I would write a code to see if the user's input matches the random character string from the html: Code: [Select] <?php if ($random_string == $captcha_code) { mail($to, $subject, $body); } else { echo ("The code you entered did not match the captcha. Please go back and try again."); } ?> Is this possible? I haven't yet tried it myself, because I don't know how to generate random strings of characters, but I was just wondering if perhaps I'm on the right track? Any suggestions or advice is appreciated =) Hi, I am making a CAPTCHA image. I am pretty sure the code I have is correct, but I am getting these error messages when I run the script. I use GoDaddy for hosting. The font that I reference in the script is in the root directory with the script. Any ideas? Thanks, Craig ------------ Warning: imagefilledrectangle(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 19 Warning: imageline(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 22 Warning: imageline(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 22 Warning: imageline(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 22 Warning: imageline(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 22 Warning: imageline(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 22 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagesetpixel(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 27 Warning: imagettftext() expects parameter 1 to be resource, null given in /home/content/68/6372768/html/captcha.php on line 30 Warning: imagedestroy(): supplied argument is not a valid Image resource in /home/content/68/6372768/html/captcha.php on line 35 Code: [Select] <?php session_start(); // Set some important CAPTCHA constants define('CAPTCHA_NUMCHARS', 6); // number of characters in pass-phrase define('CAPTCHA_WIDTH', 100); // width of image define('CAPTCHA_HEIGHT', 25); // height of image // Generate the random pass-phrase $pass_phrase = ""; for ($i = 0; $i < CAPTCHA_NUMCHARS; $i++) { $pass_phrase .= chr(rand(97, 122)); } // Store the encrypted pass-phrase in a session variable $_SESSION['pass_phrase'] = sha1($pass_phrase); // Create the image $img = imagecreatetruecolor(CAPTCHA_WIDTH, CAPTCHA_HEIGHT); // Set a white background with black text and gray graphics $bg_color = imagecolorallocate($img, 255, 255, 255); // white $text_color = imagecolorallocate($img, 0, 0, 0); // black $graphic_color = imagecolorallocate($img, 64, 64, 64); // dark gray // Fill the background imagefilledrectangle($img, 0, 0, CAPTCHA_WIDTH, CAPTCHA_HEIGHT, $bg_color); // Draw some random lines for ($i = 0; $i < 5; $i++) { imageline($img, 0, rand() % CAPTCHA_HEIGHT, CAPTCHA_WIDTH, rand() % CAPTCHA_HEIGHT, $graphic_color); } // Sprinkle in some random dots for ($i = 0; $i < 50; $i++) { imagesetpixel($img, rand() % CAPTCHA_WIDTH, rand() % CAPTCHA_HEIGHT, $graphic_color); } // Draw the pass-phrase string imagettftext($img, 18, 0, 5, CAPTCHA_HEIGHT - 5, $text_color, 'Courier New Bold.ttf', $pass_phrase); // Output the image as a PNG using a header header("Content-type: image/png"); imagepng($img); // Clean up imagedestroy($img); ?> why does this not display my hosting supports gd Code: [Select] <?php session_start(); create_image(); function create_image() { $rand = md5(rand(0, 9999999)); $vaule = substr ($rand, 10, 8); //widht and height is the width of the box $width = 150; $height = 30; //the will be ther sixe of the box $image = imagecreate($width, $height); $black = imagecolorallocate($image, 0, 0, 0); $white = imagecolorallocate($image, 255, 255, 255); $grey = imagecolorallocate ($image, 132, 132, 132); $blue = imagecolorallocate ($image, 138, 197, 255); //the bg of the image imagefill($image, 0, 0, $blue); //imagetext imagestring($image, 5, 15, 7, $vaule, $black); //middle line and down line imageline($image, 0, $height/2, $width, $height/2, $grey); imageline($image, $width/2, 0, $width/2, $height, $grey); //hor line image($image, 0, 0, $width, $height, $grey); image($image, 0, $height, $width, 0, $grey); //desplay image imagepng($image); imagedestroy($image); //start session $_SESSION[captcha_key]; } ?> |
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