php中施用GD2库创建图形在浏览器中显示不出来

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Release: 2016-06-13 11:18:06
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php中使用GD2库创建图形在浏览器中显示不出来
我刚学PHP不久,在使用GD2库创建图像时在浏览器中显示不出来图像,只有一个代表图像的标志,我的代码如下:
header("content-type:image/gif");
$image = imagecreate(300,80);
$bg = imagecolorallocate($image, 220, 40, 120);
imagegif($image);
?>
应该没问题,但是就是显示不了,各位大侠求指导啊!谢谢!


------解决方案--------------------
你的程序文件是 utf-8 的吧?
请去掉 BOM 头
------解决方案--------------------
本帖最后由 xuzuning 于 2012-07-24 09:04:58 编辑 保存时选gbk编码
------解决方案--------------------
打开php错误提示吧。将header注释掉看提示什么错误。

php.ini 中 
display_errors=On
error_reporting=E_ALL & ~NOTICE  
重启apache 
------解决方案--------------------
假设你的程序名为 pict.php
那么新建一个程序,内容为:
coho base64_encode(file_get_contents('http://localhost/pict.php'));

运行后贴出结果
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