AuthImg.php[CODE:]
session_start();
/*
* Filename: authimg.php
* Author: hutuworm
* Date: 2003-04-28
* @Copyleft hutuworm.org
*/
Header("Content-type: image/PNG");
srand((double)microtime()*1000000);
$im = imagecreate(62,20);
$black = ImageColorAllocate($im, 0,0,0);
$white = ImageColorAllocate($im, 255,255,255);
$gray = ImageColorAllocate($im, 200,200,200);
imagefill($im,0,0,$gray);
while(($authnum=rand()%100000)<10000);
imagestring($im, 5, 10, 3, $authnum, $black);
for($i=0;$i<200;$i++){
$randcolor = ImageColorallocate($im,rand(0,255),rand(0,255),rand(0,255));
imagesetpixel($im, rand()%70 , rand()%30 , $randcolor);
}
$_SESSION['authnum']=$authnum;
ImagePNG($im);
ImageDestroy($im);
?>
/*
* Filename: authimg.php
* Author: hutuworm
* Date: 2003-04-28
* @Copyleft hutuworm.org
*/
Header("Content-type: image/PNG");
srand((double)microtime()*1000000);
$im = imagecreate(62,20);
$black = ImageColorAllocate($im, 0,0,0);
$white = ImageColorAllocate($im, 255,255,255);
$gray = ImageColorAllocate($im, 200,200,200);
imagefill($im,0,0,$gray);
while(($authnum=rand()%100000)<10000);
imagestring($im, 5, 10, 3, $authnum, $black);
for($i=0;$i<200;$i++){
$randcolor = ImageColorallocate($im,rand(0,255),rand(0,255),rand(0,255));
imagesetpixel($im, rand()%70 , rand()%30 , $randcolor);
}
$_SESSION['authnum']=$authnum;
ImagePNG($im);
ImageDestroy($im);
?>
使用方法:[CODE:]
0>
认证页:[CODE:]if($_SESSION['authnum']==$_POST["VerifyCode"]){
$link -> Inf_right("正确!");
}else{
$link -> Inf_wrong("验证码输入错误!");
}
很快很方便~!$link -> Inf_right("正确!");
}else{
$link -> Inf_wrong("验证码输入错误!");
}