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I have created a Captcha image to use on various forms. It works fine in one are creating a row of letters that when entered correctly send the information to the correct email. However when I cut and paste the exact same code the image creates numbers that cannot be read and therefore the form cannot be sent. I cannot for the life of me see why this would be? Or at least prevent numbers form appearing? Thanks very much in advance for any help Code below: <?php session_start(); // Set some important CAPTCHA constants define('CAPTCHA_NUMCHARS', 6); define('CAPTCHA_WIDTH', 100); define('CAPTCHA_HEIGHT', 25); // 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); ?> The above works wioth this code below: <?php $from = ""; $subject = ""; $onesevenoaksmail = ""; if (isset($_POST['submit'])) { $from = $_POST ['from']; $subject = $_POST ['subject']; $onesevenoaksmail = $_POST ['onesevenoaksmail']; $email = "support@onesevenoaks.co.uk"; $output_form = 'no'; if (empty($subject)) { //$subject is blank echo '<p class="error">You forgot to enter a subject.</p>'; $output_form = 'yes'; } if (empty($onesevenoaksmail)) { // $onesevenoaksmail is blank echo '<p class="error">You forgot to enter your message.</p>'; $output_form = 'yes'; } //Check the CAPTCHA pass-phrase for verification $user_pass_phrase = sha1($_POST['verify']); if ($_SESSION['pass_phrase'] != $user_pass_phrase) { echo '<p class="error">Please enter the verification pass phrase exactly as shown.</p>'; $output_form = 'yes'; } if (!preg_match('/^[a-zA-Z0-9][a-zA-Z0-9\._\-&!?=#]*@/', $from)) { //$email is invlaid beacsue local name is bad echo '<p class="error">Your email address is incorrect.</p>'; $output_form = 'yes'; } else { //strip out everything but the domain from the email $domain = preg_replace('/^[a-zA-Z0-9][a-zA-Z0-9\._\-&!?=#]*@/', '', $from); //Now check if $domain is registered function win_checkdnsrr($domain,$recType='') { if (!empty($domain)) { if ($recType=='') $recType="MX"; exec("nslookup -type=$recType $domain",$output); foreach($output as $line) { if (preg_match("/^$domain/", $line)) { return true; } return false; } return false; } } } } else { $output_form = 'yes'; } if ($output_form == 'yes') { ?> <table> <tr> <td> <form enctype="multipart/form-data" method="POST" action="<?php echo $_SERVER['PHP_SELF']; ?>"> <label for="from">Email:</label></td> <td><input id="from" name="from" type="text" size="60" value="<?php echo $from; ?>"/></td></tr> <tr> <td> <label for="subject">Subject of email: </label></td> <td><input type="text" id="subject" name="subject" size="60" value="<?php echo $subject; ?>" /> </td> </tr> <tr> <td> <label for="onesevenoaksmail">Body of email: </label></td> <td><textarea id="onesevenoaksmail" name="onesevenoaksmail" rows="8" cols="60"><?php echo $onesevenoaksmail; ?></textarea> </td> </tr> <tr> <td>Verification:</td> <td> <input type = "text" id="verify" name="verify" size="30" /> <img src="captcha.php" alt="Verification pass-phrase" /> </td> </tr> <tr> <td> <input type="submit" name="submit" value="Submit" /> </td> </tr> </table> <hr> </form> <?php } else if ($output_form == 'no') { $msg = "Dear Doug\n Subject: $subject\n Message: $onesevenoaksmail\n From: $from"; $headers = "doug_pitchers@hotmail.com"; mail($headers, $subject, $msg, 'from:' . 'dougpitchers@yahoo.co.uk'); echo '<p> Thank you for the message! We will respond within 48 hours</p>'; } ?> but not this code below: <?php session_start(); ?> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>Web development kent - Contact DP Web Development </title> <link rel="stylesheet" href="dpwebdevelopment1.css" type="text/css" /> </head> <body id="contact"> <div id="wrap4"> <div id="header"> DP WEB DEVELOPMENT </div> <?php require_once('navmenu.php'); ?> <img alt='contactus image' src='webdevelopmentimages/reflowers.jpg' border='0'/> <H1>Contact DP Web Development</h1> &nbsp<div id="phone"> <img src="webdevelopmentimages/phoneicon.gif" alt="phone DP Web Development">07939014511 </div> <p>Whatever your situation we would love to hear from you</p> <?php $firstname = ""; $lastname = ""; $from = ""; $subject = ""; $dpwebdevelopmentmail = ""; $number = ""; $webmail = ""; if (isset($_POST['submit'])) { $firstname = $_POST ['firstname']; $lastname = $_POST ['lastname']; $from = $_POST ['from']; $subject = $_POST ['subject']; $dpwebdevelopmentmail = $_POST ['dpwebdevelopmentmail']; $email = "doug_pitchers@hotmail.com"; $number = $_POST ['number']; $webmail = $_POST['webmail']; $output_form = 'no'; if (empty($firstname)) { //$firtsname is blank echo '<p class="error">You forgot to enter your first name.</p>'; $output_form = 'yes'; } if (empty($lastname)) { //$lastname is blank echo '<p class="error">You forgot to enter your last name.</p>'; $output_form = 'yes'; } if (empty($subject)) { //$subject is blank echo '<p class="error">You forgot to enter a subject.</p>'; $output_form = 'yes'; } if (empty($dpwebdevelopmentmail)) { // $dpwebdevelopmentmail is blank echo '<p class="error">You forgot to enter your message.</p>'; $output_form = 'yes'; } //Check the CAPTCHA pass-phrase for verification $user_pass_phrase = sha1($_POST['verify']); if ($_SESSION['pass_phrase'] != $user_pass_phrase) { echo '<p class="error">Please enter the verification pass phrase exactly as it is shown.</p>'; $output_form = 'yes'; } if (!preg_match('/^[a-zA-Z0-9][a-zA-Z0-9\._\-&!?=#]*@/', $from)) { //$email is invlaid beacsue local name is bad echo '<p class="error">Your email address was not recognised. Please enter it again..</p>'; $output_form = 'yes'; } else { //strip out everything but the domain from the email $domain = preg_replace('/^[a-zA-Z0-9][a-zA-Z0-9\._\-&!?=#]*@/', '', $from); //Now check if $domain is registered function win_checkdnsrr($domain,$recType='') { if (!empty($domain)) { if ($recType=='') $recType="MX"; exec("nslookup -type=$recType $domain",$output); foreach($output as $line) { if (preg_match("/^$domain/", $line)) { return true; } return false; } return false; } } } } else { $output_form = 'yes'; } if ($output_form == 'yes') { ?> <table> <tr> <td> <form enctype="multipart/form-data" method="POST" action="<?php echo $_SERVER['PHP_SELF']; ?>"> <tr> <td> <label for="firstname">First Name: </label></td> <td><input type="text" id="firstname" name="firstname" size="60" value="<?php echo $firstname; ?>" /> </td> </tr> <tr> <td> <label for="lastname">Last Name: </label></td> <td><input type="text" id="lastname" name="lastname" size="60" value="<?php echo $lastname; ?>" /> </td> </tr> <tr> <td> <label for="subject">Subject of email: </label></td> <td><input type="text" id="subject" name="subject" size="60" value="<?php echo $subject; ?>" /> </td> </tr> <tr> <td> <label for="dpwebdevelopmentmail">Message </label></td> <td><textarea id="dpwebdevelopmentmail" name="dpwebdevelopmentmail" rows="8" cols="60"><?php echo $dpwebdevelopmentmail; ?></textarea> </td> </tr> <tr> <td> <label for="from">Your Email address:</label></td> <td><input id="from" name="from" type="text" size="60" value="<?php echo $from; ?>"/></td></tr> <tr> <td> <label for="from">Your contact phone number:</label></td> <td><input id="number" name="number" type="text" size="60" value="<?php echo $number ?>"/> </td> </tr> <tr> <td> <label for="contact">How would you prefer to be contacted?:</label></td> <td>Email <input id="webmail" name="webmail" type="radio" value="webmail" checked /> Phone<input id="webmail" name="webmail" type="radio" value="phone" /> </td> </tr> <tr> <td>Verification:</td> <td> <input type = "text" id="verify" name="verify" size="30" /> <img src="captcha.php" alt="Verification pass-phrase" /> </td> </tr> <tr> <td> <input type="submit" name="submit" value="Submit" /> </td> </tr> </table> <hr> </form> <?php } else if ($output_form == 'no') { $msg = "Dear Doug\n FirstName: $firstname\n Lastname: $lastname\n Subject: $subject\n Message: $dpwebdevelopmentmail\n Phone: $number\n Contact: $webmail\n From: $from"; $headers = "doug_pitchers@hotmail.com"; mail($headers, $subject, $msg, 'from:' . 'dougpitchers@yahoo.co.uk'); echo '<p> Thank you for the message! We will respond within 24 hours</p>'; } ?> </body> </html>