Re: [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 16:27)推噓0(0推 0噓 0→)

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經過各位板友的協助確認是我沒有把GD模組裝起來XD 不過中華電信的伺服器也沒有安裝GD 但是還是謝謝各位XD ※ 引述《raxe (買電腦的找我)》之銘言： : 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 -- Wherever you go, whatever you do I will be right here waiting for you. Whatever it takes, or how my heart breaks I will be right here waiting for you. -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 122.116.168.220