- session_start();
- //生成验证码图片
- Header("Content-type: image/PNG");
- srand((double)microtime()*1000000);
- $im = imagecreate(62,20);
- $black = ImageColorAllocate($im, 69,120,239);
- $white = ImageColorAllocate($im, 0,0,0);
- $gray = ImageColorAllocate($im, 200,200,200);
- imagefill($im,68,30,$gray);
- while(($authnum=rand()%100000)<10000);
- //将五位整数验证码绘入图片
- imagestring($im, 5, 10, 3, $authnum, $white);
- for($i=0;$i<200;$i++) //加入干扰象素
- {
- $randcolor = ImageColorallocate($im,rand(0,255),rand(0,255),rand(0,255));
- imagesetpixel($im, rand()%70 , rand()%30 , $randcolor);
- }
- ImagePNG($im);
- ImageDestroy($im);
- $_SESSION['SESSION_VALIDATE_CODE'] = $authnum.'';
- ?>
-
-
-
- $txt="memory";
- $im = imagecreatetruecolor(400,30);
- $white = ImageColorAllocate($im, 255,255,255);
- $black = ImageColorAllocate($im, 0,0,0);
-
- // Replace path by your own font path
- imagestring($im,1,10,10,$txt,$black);
- //imagettftext($im, 20, 0, 10, 20, $black, "font.ttf","Testing...");
- header("Content-type:image/jpeg");
- imagejpeg($im);
- // imagedestroy($im);
-
-
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