| Current Path : /home/zqegovsj/www/us3web.haibo.com.cn/newfinehome/ |
| Current File : /home/zqegovsj/www/us3web.haibo.com.cn/newfinehome/auth_image.php |
<?php
session_start();
//�����λ������֤��
mt_srand((double)microtime()*1000000);
$AuthNum = mt_rand();
if($AuthNum<1000){$AuthNum *= 1000;}
$AuthNum = substr(strrev($AuthNum),-4);
//session_register('AuthNum');
$_SESSION['Angus'] = $AuthNum;
Header("Content-type:image/png");
$im = ImageCreate(42,20);
$black = ImageColorAllocate($im,222,222,222);
$white = ImageColorAllocate($im,223,0,12);
$white2 = ImageColorAllocate($im,255,255,255);
//����λ����֤�����picture
//λ�ý���
for ($i = 0; $i < 4; $i++) {
if ($i%2 == 0){$top = 1;}else{$top = 3;}
imagestring($im, 5, 10*$i+1, $top, substr($AuthNum,$i,1), $white);
}
//�������������
//ImageLine($im,0,11,40,6,$white2);
//����������ص�
//for($i=0;$i<150;$i++){ imagesetpixel($im, rand()%70 , rand()%30 , $white2); }
ImagePng($im);
ImageDestroy($im);
?>