[問題] 圖形驗證碼模板不會動作

看板PHP作者raxe (買電腦的找我)時間17年前 (2008/10/09 15:00)推噓0(0推 0噓 3→)

留言3則, 2人參與討論串1/4 (看更多)

小弟完全不會寫PHP的程式但是依照老闆的需求必須做一個圖形驗證碼給他所以就去網路上找了一個程式下來 <?php session_start(); /* * File: CaptchaSecurityImages.php * Author: Simon Jarvis * Copyright: 2006 Simon Jarvis * Date: 03/08/06 * Updated: 07/02/07 * 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 $font = 'monofont.ttf'; function generateCode($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='120',$height='40',$characters='6') { $code = $this->generateCode($characters); /* font size will be 75% of the image height */ $font_size = $height * 0.75; $image = @imagecreate($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; } } $width = isset($_GET['width']) ? $_GET['width'] : '120'; $height = isset($_GET['height']) ? $_GET['height'] : '40'; $characters = isset($_GET['characters']) && $_GET['characters'] > 1 ? $_GET['characters'] : '6'; $captcha = new CaptchaSecurityImages($width,$height,$characters); ?> 上面是程式碼我在網頁上面用的鑲嵌碼如下 <div> <form action="php-captcha.php" method="post"> <div style="margin:5px 10px;"> <p>The Security Code Is Incorrect</p> <img src="CaptchaSecurityImages.php" alt="Security Code" /><br /> <label for="security_code" class="lbl_txt">Security Code: </label> <input id="security_code" name="security_code" type="text" /><br /> <input type="submit" name="submit" value="Submit" /> </div> </form> 最後的網頁在 http://122.116.102.126/contact.html 不知道是不是犯了甚麼愚蠢的錯誤還請大家幫我看看 -- 當烽煙散去戰火燒盡手中還能留下什麼黃砂瀰漫的荒原中只剩......... 風..................和狼 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 122.116.168.220