php中rename函数用法分析,phprename函数用法
php中rename函数用法分析,phprename函数用法
本文实例分析了php中rename()函数用法。分享给大家供大家参考。具体如下:
php filesystem 函数,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.
语句: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 |
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.
复制代码 代码如下:
rename("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.
希望本文所述对大家的PHP程序设计有所帮助。

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