时间：2021-07-01 10:21:17 帮助过：37人阅读
session_start();输出图像
//随机码的个数
//$_rnd_code = 4;
//创建随机码
for($i=0;$i<4;$i++){
$_nmsg.=dechex(mt_rand(0,15));
}
//保存session
$_SESSION['code']=$_nmsg;
//长和高
$_width = 75;
$_height = 25;
//创建一张图像
$_img = imagecreatetruecolor($_width,$_height);
//
按错误信息修改
Notice: Undefined variable: _rnd_code in D:\AMP\web\ide_tmp.php on line 53
Warning: Division by zero in D:\AMP\web\ide_tmp.php on line 53
Notice: Undefined variable: _heght in D:\AMP\web\ide_tmp.php on line 53
Warning: mt_rand(): max(0) is smaller than min(1) in D:\AMP\web\ide_tmp.php on line 53
Notice: Undefined variable: _rnd_code in D:\AMP\web\ide_tmp.php on line 53
Warning: Division by zero in D:\AMP\web\ide_tmp.php on line 53
Notice: Undefined variable: _heght in D:\AMP\web\ide_tmp.php on line 53
Warning: mt_rand(): max(0) is smaller than min(1) in D:\AMP\web\ide_tmp.php on line 53
Notice: Undefined variable: _rnd_code in D:\AMP\web\ide_tmp.php on line 53
Warning: Division by zero in D:\AMP\web\ide_tmp.php on line 53
Notice: Undefined variable: _heght in D:\AMP\web\ide_tmp.php on line 53
Warning: mt_rand(): max(0) is smaller than min(1) in D:\AMP\web\ide_tmp.php on line 53
Notice: Undefined variable: _rnd_code in D:\AMP\web\ide_tmp.php on line 53
Warning: Division by zero in D:\AMP\web\ide_tmp.php on line 53
Notice: Undefined variable: _heght in D:\AMP\web\ide_tmp.php on line 53
Warning: mt_rand(): max(0) is smaller than min(1) in D:\AMP\web\ide_tmp.php on line 53
Notice: Undefined variable: _rnd_code in D:\AMP\web\ide_tmp.php on line 53
Warning: Division by zero in D:\AMP\web\ide_tmp.php on line 53
Notice: Undefined variable: _heght in D:\AMP\web\ide_tmp.php on line 53
Warning: mt_rand(): max(0) is smaller than min(1) in D:\AMP\web\ide_tmp.php on line 53
‰PNG
