函数
大家都知道,rename()函数可以对文件或目录进行重命名的操作。其实它还可以做很多事情。
熟悉unix的朋友应该知道shell命令mv,它相当与win32的移动,而且移动的同时可进行重命名。我发现,php的rename()函数就相当于mv,它不仅仅只有简单的重命名的功能,同样可以改变文件甚至整个目录的路径。
例如:
$oldpath ----文件或目录原来路径
$newpath ----新定义路径
那么 rename($oldpath,$newpath)就可以完成文件/目录移动的操作
经过我的测试,win32和unix的php4版本都支持这个功能。
另外,好象php4的win32版取消了unlink()函数。那么还可以巧用rename()函数来完成删除的操作,例如:
$path ---- 文件或目录路径
$tmp ---- tmp目录(/tmp)
用rename($path,$tmp) 将文件移动到tmp目录.

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