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- <?php
- session_start(); // this MUST be called prior to any output including whitespaces and line breaks!
- $GLOBALS['DEBUG_MODE'] = 1;
- // CHANGE TO 0 TO TURN OFF DEBUG MODE
- // IN DEBUG MODE, ONLY THE CAPTCHA CODE IS VALIDATED, AND NO EMAIL IS SENT
- $GLOBALS['ct_recipient'] = 'YOU@EXAMPLE.COM'; // Change to your email address! Make sure DEBUG_MODE above is 0 for mail to send!
- $GLOBALS['ct_msg_subject'] = 'Securimage Test Contact Form';
- ?>
- <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
- <html xmlns="http://www.w3.org/1999/xhtml">
- <head>
- <meta http-equiv="Content-type" content="text/html;charset=UTF-8" />
- <title>Securimage Example Form</title>
- <style type="text/css">
- <!--
- div.error { display: block; color: #f00; font-weight: bold; font-size: 1.2em; }
- span.error { display: block; color: #f00; font-style: italic; }
- .success { color: #00f; font-weight: bold; font-size: 1.2em; }
- form label { display: block; font-weight: bold; }
- fieldset { width: 90%; }
- legend { font-size: 24px; }
- .note { font-size: 18px;
- -->
- </style>
- </head>
- <body>
- <fieldset>
- <legend>Example Form</legend>
- <p class="note">
- This is an example PHP form that processes user information, checks for errors, and validates the captcha code.<br />
- This example form also demonstrates how to submit a form to itself to display error messages.
- </p>
- <?php
- process_si_contact_form(); // Process the form, if it was submitted
- if (isset($_SESSION['ctform']['error']) && $_SESSION['ctform']['error'] == true): /* The last form submission had 1 or more errors */ ?>
- <div class="error">There was a problem with your submission. Errors are displayed below in red.</div><br />
- <?php elseif (isset($_SESSION['ctform']['success']) && $_SESSION['ctform']['success'] == true): /* form was processed successfully */ ?>
- <div class="success">The captcha was correct and the message has been sent! The captcha was solved in <?php echo $_SESSION['ctform']['timetosolve'] ?> seconds.</div><br />
- <?php endif; ?>
- <form method="post" action="<?php echo htmlspecialchars($_SERVER['REQUEST_URI'] . $_SERVER['QUERY_STRING']) ?>" id="contact_form">
- <input type="hidden" name="do" value="contact" />
- <p>
- <label for="ct_name">Name*:</label>
- <?php echo @$_SESSION['ctform']['name_error'] ?>
- <input type="text" name="ct_name" size="35" value="<?php echo htmlspecialchars(@$_SESSION['ctform']['ct_name']) ?>" />
- </p>
- <p>
- <label for="ct_email">Email*:</label>
- <?php echo @$_SESSION['ctform']['email_error'] ?>
- <input type="text" name="ct_email" size="35" value="<?php echo htmlspecialchars(@$_SESSION['ctform']['ct_email']) ?>" />
- </p>
- <p>
- <label for="ct_URL">URL:</label>
- <?php echo @$_SESSION['ctform']['URL_error'] ?>
- <input type="text" name="ct_URL" size="35" value="<?php echo htmlspecialchars(@$_SESSION['ctform']['ct_URL']) ?>" />
- </p>
- <p>
- <label for="ct_message">Message*:</label>
- <?php echo @$_SESSION['ctform']['message_error'] ?>
- <textarea name="ct_message" rows="12" cols="60"><?php echo htmlspecialchars(@$_SESSION['ctform']['ct_message']) ?></textarea>
- </p>
- <p>
- <?php
- // show captcha HTML using Securimage::getCaptchaHtml()
- require_once 'securimage.php';
- $options = array();
- $options['input_name'] = 'ct_captcha'; // change name of input element for form post
- if (!empty($_SESSION['ctform']['captcha_error'])) {
- // error html to show in captcha output
- $options['error_html'] = $_SESSION['ctform']['captcha_error'];
- }
- echo Securimage::getCaptchaHtml($options);
- ?>
- </p>
- <p>
- <br />
- <input type="submit" value="Submit Message" />
- </p>
- </form>
- </fieldset>
- </body>
- </html>
- <?php
- // The form processor PHP code
- function process_si_contact_form()
- {
- $_SESSION['ctform'] = array(); // re-initialize the form session data
- if ($_SERVER['REQUEST_METHOD'] == 'POST' && @$_POST['do'] == 'contact') {
- // if the form has been submitted
- foreach($_POST as $key => $value) {
- if (!is_array($key)) {
- // sanitize the input data
- if ($key != 'ct_message') $value = strip_tags($value);
- $_POST[$key] = htmlspecialchars(stripslashes(trim($value)));
- }
- }
- $name = @$_POST['ct_name']; // name from the form
- $email = @$_POST['ct_email']; // email from the form
- $URL = @$_POST['ct_URL']; // url from the form
- $message = @$_POST['ct_message']; // the message from the form
- $captcha = @$_POST['ct_captcha']; // the user's entry for the captcha code
- $name = substr($name, 0, 64); // limit name to 64 characters
- $errors = array(); // initialize empty error array
- if (isset($GLOBALS['DEBUG_MODE']) && $GLOBALS['DEBUG_MODE'] == false) {
- // only check for errors if the form is not in debug mode
- if (strlen($name) < 3) {
- // name too short, add error
- $errors['name_error'] = 'Your name is required';
- }
- if (strlen($email) == 0) {
- // no email address given
- $errors['email_error'] = 'Email address is required';
- } else if ( !preg_match('/^(?:[\w\d]+\.?)+@(?:(?:[\w\d]\-?)+\.)+\w{2,4}$/i', $email)) {
- // invalid email format
- $errors['email_error'] = 'Email address entered is invalid';
- }
- if (strlen($message) < 20) {
- // message length too short
- $errors['message_error'] = 'Your message must be longer than 20 characters';
- }
- }
- // Only try to validate the captcha if the form has no errors
- // This is especially important for ajax calls
- if (sizeof($errors) == 0) {
- require_once dirname(__FILE__) . '/securimage.php';
- $securimage = new Securimage();
- if ($securimage->check($captcha) == false) {
- $errors['captcha_error'] = 'Incorrect security code entered<br />';
- }
- }
- if (sizeof($errors) == 0) {
- // no errors, send the form
- $time = date('r');
- $message = "A message was submitted from the contact form. The following information was provided.<br /><br />"
- . "<em>Name: $name</em><br />"
- . "<em>Email: $email</em><br />"
- . "<em>URL: $URL</em><br />"
- . "<em>Message:</em><br />"
- . "<pre>$message</pre>"
- . "<br /><br /><em>IP Address:</em> {$_SERVER['REMOTE_ADDR']}<br />"
- . "<em>Time:</em> $time<br />"
- . "<em>Browser:</em> {$_SERVER['HTTP_USER_AGENT']}<br />";
- $message = wordwrap($message, 70);
- if (isset($GLOBALS['DEBUG_MODE']) && $GLOBALS['DEBUG_MODE'] == false) {
- // send the message with mail()
- mail($GLOBALS['ct_recipient'], $GLOBALS['ct_msg_subject'], $message, "From: {$GLOBALS['ct_recipient']}\r\nReply-To: {$email}\r\nContent-type: text/html; charset=UTF-8\r\nMIME-Version: 1.0");
- }
- $_SESSION['ctform']['timetosolve'] = $securimage->getTimeToSolve();
- $_SESSION['ctform']['error'] = false; // no error with form
- $_SESSION['ctform']['success'] = true; // message sent
- } else {
- // save the entries, this is to re-populate the form
- $_SESSION['ctform']['ct_name'] = $name; // save name from the form submission
- $_SESSION['ctform']['ct_email'] = $email; // save email
- $_SESSION['ctform']['ct_URL'] = $URL; // save URL
- $_SESSION['ctform']['ct_message'] = $message; // save message
- foreach($errors as $key => $error) {
- // set up error messages to display with each field
- $_SESSION['ctform'][$key] = "<span class=\"error\">$error</span>";
- }
- $_SESSION['ctform']['error'] = true; // set error floag
- }
- } // POST
- }
- $_SESSION['ctform']['success'] = false; // clear success value after running
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