PHP汉字验证码的实现

最新推荐文章于 2025-05-03 11:00:32 发布

coreyhsu2020

最新推荐文章于 2025-05-03 11:00:32 发布

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分类专栏： PHP技术文章标签： php session im action input server

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啥都不说了直接看程序：

<?php ChineseChar = array("人","出","来","友","学","孝","仁","义","礼","廉","忠","国","中","易","白","者","火 ","土","金","木","雷","风","龙","虎","天","地", "生","晕","菜","鸟","田","三","百","钱","福 ","爱","情","兽","虫","鱼","九","网","新","度","哎","唉","啊","哦","仪","老","少","日", "月 ","星"); ?> <?php session_start(); errorMSG = ; //验证用户输入是否和验证码一致 if(!is_null(_POST[check])) { if (strcasecmp(_SESSION[code],_POST[code])==0) errorMSG = "<p style="/" mce_style="/""font-size:12px;color:#009900/">验证成功!</p>"; else errorMSG = "<p style="/" mce_style="/""font-size:12px;color:#FF0000/">验证失败!</p>"; } ?> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> </head> <body> <?php if(errorMSG){ echo errorMSG; } ?> <form action=<?php echo _SERVER[PHP_SELF]?> method=post> 请输入验证码：<input type="text" name="code" style="width: 80px"><img src="code.php" mce_src="code.php"> <br> <input type="submit" name="check" value="提交验证码"> </form> </body> </html> <?php include_once("chinesechar.php"); session_start(); // 设置 content-type header("Content-type: image/png"); // 创建图片 im = imagecreatetruecolor(120, 30); // 创建颜色 fontcolor = imagecolorallocate(im, 255, 255, 255); bg = imagecolorallocate(im, 0, 0, 0); // 设置文字 for(i=0;i<4;i++) text .= ChineseChar[(array_rand(ChineseChar))]; _SESSION[code] = text; // 设置字体 font = simkai.ttf; // 添加文字 imagettftext(im, 18, 0, 11, 21, fontcolor, font, iconv("GB2312","UTF-8",text)); // 输出图片 imagepng(im); imagedestroy(im); ?>

来自：http://blog.sina.com.cn/s/blog_4b1a6e2f0100l9d9.html