PHP 递归文件/文件夹副本

Posted 2021-05-14

/**
* Create a new directory, and the whole path.
*
* If  the  parent  directory  does  not exists, we will create it,
* etc.
* @todo
*     - PHP5 mkdir functoin supports recursive, it should be used
* @author baldurien at club-internet dot fr 
* @param string the directory to create
* @param int the mode to apply on the directory
* @return bool return true on success, false else
* @previousNames mkdirs
*/

function makeAll($dir, $mode = 0777, $recursive = true) {
    if( is_null($dir) || $dir === "" ){
        return FALSE;
    }
    
    if( is_dir($dir) || $dir === "/" ){
        return TRUE;
    }
    if( makeAll(dirname($dir), $mode, $recursive) ){
        return mkdir($dir, $mode);
    }
    return FALSE;
}

/**
 * Copies file or folder from source to destination, it can also do
 * recursive copy by recursively creating the dest file or directory path if it wasn't exist
 * Use cases:
 * - Src:/home/test/file.txt ,Dst:/home/test/b ,Result:/home/test/b -> If source was file copy file.txt name with b as name to destination
 * - Src:/home/test/file.txt ,Dst:/home/test/b/ ,Result:/home/test/b/file.txt -> If source was file Creates b directory if does not exsits and copy file.txt into it
 * - Src:/home/test ,Dst:/home/ ,Result:/home/test/** -> If source was directory copy test directory and all of its content into dest      
 * - Src:/home/test/ ,Dst:/home/ ,Result:/home/**-> if source was direcotry copy its content to dest
 * - Src:/home/test ,Dst:/home/test2 ,Result:/home/test2/** -> if source was directoy copy it and its content to dest with test2 as name
 * - Src:/home/test/ ,Dst:/home/test2 ,Result:->/home/test2/** if source was directoy copy it and its content to dest with test2 as name
 * @todo
 *  - Should have rollback so it can undo the copy when it wasn't completely successful
 *  - It should be possible to turn off auto path creation feature f
 *  - Supporting callback function
 *  - May prevent some issues on shared enviroments : <a href="http://us3.php.net/umask" title="http://us3.php.net/umask">http://us3.php.net/umask</a>
 * @param $source //file or folder
 * @param $dest ///file or folder
 * @param $options //folderPermission,filePermission
 * @return boolean
 */
function smartCopy($source, $dest, $options=array('folderPermission'=>0755,'filePermission'=>0755))
{
	$result=false;
	
	//For Cross Platform Compatibility
	if (!isset($options['noTheFirstRun'])) {
		$source=str_replace('\\','/',$source);
		$dest=str_replace('\\','/',$dest);
		$options['noTheFirstRun']=true;
	}
	
	if (is_file($source)) {
		if ($dest[strlen($dest)-1]=='/') {
			if (!file_exists($dest)) {
				makeAll($dest,$options['folderPermission'],true);
			}
			$__dest=$dest."/".basename($source);
		} else {
			$__dest=$dest;
		}
		$result=copy($source, $__dest);
		chmod($__dest,$options['filePermission']);
		
	} elseif(is_dir($source)) {
		if ($dest[strlen($dest)-1]=='/') {
			if ($source[strlen($source)-1]=='/') {
				//Copy only contents
			} else {
				//Change parent itself and its contents
				$dest=$dest.basename($source);
				@mkdir($dest);
				chmod($dest,$options['filePermission']);
			}
		} else {
			if ($source[strlen($source)-1]=='/') {
				//Copy parent directory with new name and all its content
				@mkdir($dest,$options['folderPermission']);
				chmod($dest,$options['filePermission']);
			} else {
				//Copy parent directory with new name and all its content
				@mkdir($dest,$options['folderPermission']);
				chmod($dest,$options['filePermission']);
			}
		}

		$dirHandle=opendir($source);
		while($file=readdir($dirHandle))
		{
			if($file!="." && $file!="..")
			{
				$__dest=$dest."/".$file;
				$__source=$source."/".$file;
				//echo "$__source ||| $__dest<br />";
				if ($__source!=$dest) {
					$result=smartCopy($__source, $__dest, $options);
				}
			}
		}
		closedir($dirHandle);
		
	} else {
		$result=false;
	}
	return $result;
}