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/*     
* 文件:chinesechar.php     
* 作用:汉字数据储存     
*/     
$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");     
?>    
/*     
* 文件:check.php     
* 作用:验证    
*/     
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 = " 验证成功! ";     
        else     
            $errorMSG = "验证失败! ";     
}     
?>     
     
     
     
     
     
if($errorMSG){     
echo $errorMSG;     
}     
?>     
     
     
   
/*     
* 文件:code.php     
* 作用:验证码生成     
   
* 特注:由 没牙的草 指导 版权所有转载注明出处!有付出才会有收获!   
*/     
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);     
?> 
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