- getValidate(100,30);
-
- function getValidate($w,$h){
- $img = imagecreate($w,$h);
-
- $gray = imagecolorallocate($img,255,255,255);
- $black = imagecolorallocate($img,rand(0,200),rand(0,200),rand(0,200));
- $red = imagecolorallocate($img, 255, 0, 0);
- $white = imagecolorallocate($img, 255, 255, 255);
- $green = imagecolorallocate($img, 0, 255, 0);
- $blue = imagecolorallocate($img, 0, 0, 255);
- imagefilledrectangle($img, 0, 0, 100, 30, $black);
-
-
- for($i = 0;$i imagesetpixel($img, rand(0,$w), rand(0,$h), $gray);
- }
-
-
- $num1 = rand(1,99);
- $num2 = rand(1,99);
-
- imagestring($img, 5, 5, rand(1,10), $num1, $red);
- imagestring($img,5,30,rand(1,10),getRand(), $white);
- imagestring($img,5,45,rand(1,10),$num2, $green);
- imagestring($img,5,65,rand(1,10),"=", $blue);
- imagestring($img,5,80,rand(1,10),"?", $red);
-
-
- header("content-type:image/png");
- imagepng($img);
- imagedestroy($img);
- }
- function getRand(){
- $code = rand(0,1);
- switch ($code) {
- case 0:
- return "+";
- break;
- case 1:
- return "-";
- break;
- default:
- # code...
- break;
- }
- }
-
- ?>
|
133
收藏
