PHP递归复制、移动目录的自定义函数分享
这篇文章主要介绍了PHP递归复制、移动目录的自定义函数分享,本文的特点是对每一句代码都做详尽的注释,需要的朋友可以参考下
虽然复制一个目录是文件操作的基本功能。但PHP中也没有给出特定的函数,同样需要自定义一个递归函数实现。要复制一个包含多个子目录的目录,将涉及文件的复制、目录创建等操作。复制一个文件可以通过PHP提供的copy()函数完成,创建目录可以使用mkdir()函数。定义函数时,首先对源目录进行遍历,如果遇到的是普通文件,直接使用copy()函数进行复制。如果遍历时遇到一个目录,则必须建立该目录,然后再对该目录下的文件进行复制操作,如果还有子目录,则使用递归重复操作,最终将整个目录复制完成。自定义的递归函数复制目录的程序代码如下所示:
复制代码 代码如下:
//自定义函数递归的复制带有多级子目录的目录
function copyDir($dirSrc,$dirTo){
if(is_file($dirTo)){ //如果目标不是一个目录则退出
echo "目标不是目录不能创建!!";
return; //退出函数
}
if(!file_exists($dirTo)){ //如果目标不是一个目录则退出
mkdir($dirTo); //创建目录
}
if($dir_handle = @opendir($directory)){ //打开目录,,并判断是否能成功打开
while($filename = readdir($dir_handle)){ //循环遍历目录下的所有文件
if($filename != "."&& $filename != ".."){ //一定要排除两个特殊的目录
$subFile = $directory."/".$filename; //将目录下的子文件和当前目录相连
$sunToFile = $dirTo."/".$filename; //将目标目录的多级子目录相连
if(is_dir($subSrcFile)) //如果为目录则条件成立
copyDir($subSrcFile,$subToFile); //递归调用自己复制子目录
if(is_file($subSrcFile)) //如果是文件则条件成立
copy($subSrcFile,$subToFile); //直接复制到目标位置
}
}
losedir($dir_handle); //关闭文件资源
}
}
//测试函数,将目录“phpMyAdmin”复制到“D:/admin”
copyDir("phpMyAdmin","D:/admin");
?>
从安全和跨平台等方面考虑,尽量不要去调用操作系统的SHELL命令“cp-a”完成目录的复制。

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