新手求

WBOY
Release: 2016-06-23 14:11:17
Original
812 people have browsed it

/**
* TestGuest Version1.0
* ================================================
* Copy 2010-2012 yc60
* Web: http://www.yc60.com
* ================================================
* Author: Lee
* Date: 2010-8-13
*/
session_start();
$_rnd_code = 4;
for ($i=0;$i $_nmsg .= dechex(mt_rand(0,15));
}
$_SESSION['code'] = $_nmsg;
$_width = 75;
$_height = 25;
$_img = imagecreatetruecolor($_width,$_height);
$_white = imagecolorallocate($_img,255,255,255);
imagefill($_img,0,0,$_white);
$_flag = false;
if ($_flag) {
$_black = imagecolorallocate($_img,0,0,0);
imagerectangle($_img,0,0,$_width-1,$_height-1,$_black);
}
for ($i=0;$i $_rnd_color = imagecolorallocate($_img,mt_rand(0,255),mt_rand(0,255),mt_rand(0,255));
imageline($_img,mt_rand(0,$_width),mt_rand(0,$_height),mt_rand(0,$_width),mt_rand(0,$_height),$_rnd_color);
}
for ($i=0;$i $_rnd_color = imagecolorallocate($_img,mt_rand(200,255),mt_rand(200,255),mt_rand(200,255));
imagestring($_img,1,mt_rand(1,$_width),mt_rand(1,$_height),'*',$_rnd_color);
}
for ($i=0;$i $_rnd_color = imagecolorallocate($_img,mt_rand(0,100),mt_rand(0,150),mt_rand(0,200));
imagestring($_img,5,$i*$_width/$_rnd_code+mt_rand(1,10),mt_rand(1,$_height/2),$_SESSION['code'][$i],$_rnd_color);
}
header('Content-Type: image/png');
imagepng($_img);
imagedestroy($_img);
?>





我这显示不了验证码,哪里错了新手求指教


回复讨论(解决方案)

将这行 header('Content-Type: image/png'); 注释掉看报什么错了。

Notice: Undefined variable: _nmsg in ...

$_nmsg = ''; //加上这句
for ($i=0;$i $_nmsg .= dechex(mt_rand(0,15));
}


Fatal error: Call to undefined function imagecreatetruecolor() in D:\wamp\www\TestGuest0.9\code.php on line 29
  


这个报错

Notice: Undefined variable: _nmsg in ...

$_nmsg = ''; //加上这句
for ($i=0;$i $_nmsg .= dechex(mt_rand(0,15));
}

$_img = imagecreatetruecolor($_width,$_height);



说是这里的错误





打了代码就是不显示  我的是火狐浏览器

那你根本就没有加载 php_gd 扩展

Fatal error: Call to undefined function imagecreatetruecolor() in D:\wamp\www\TestGuest0.9\code.php on line 29
  


这个报错
这个错是没找到imagecreatetruecolor()这个方法,你检查一下你的php扩展的php_gd2开启没?

没开  刚在百度查的 我都不知道这个,有学点知识

那你根本就没有加载 php_gd 扩展



Fatal error: Call to undefined function imagecreatetruecolor() in D:\wamp\www\TestGuest0.9\code.php on line 29
  


这个报错
这个错是没找到imagecreatetruecolor()这个方法,你检查一下你的php扩展的php_gd2开启没?

Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template