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die()函数如何不报错

WBOY
WBOYOriginal
2016-06-13 10:21:50869browse

die()函数怎么不报错
if(!file_exists("welcome.txt"))
{
die("file not found");
}
else
{
$file = fopen("welcome.txt","r");
}

理论上文件不存在,浏览器应该输出这样的错误消息:file not found
可为什么我的浏览器什么也没有输出?

------解决方案--------------------

探讨

为什么不存在也没有报错?
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