php中rename()函数
php教程 rename() 函数
php filesystem 函数
定义和用法
rename() 函数重命名文件或目录。
若成功,则该函数返回 true。若失败,则返回 false。
语法
rename(oldname,newname,context)
参数 | 描述 |
---|---|
oldname | 必需。规定要重命名的文件或目录。 |
newname | 必需。规定文件或目录的新名称。 |
context | 必需。规定文件句柄的环境。context 是可修改流的行为的一套选项。 |
提示和注释
注释:在 php 4.3.3 之前,rename() 不能在基于 *nix 的系统中跨磁盘分区重命名文件。
注释:用于 oldname 中的封装协议必须和用于 newname 中的相匹配。
注释:对 context 的支持是 php 5.0.0 添加的。
例子
<!--?phprename("images","pictures");?-->
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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