Recursive Copy of Directory

问题

On my old VPS I was using the following code to copy the files and directories within a directory to a new directory that was created after the user submitted their form.

function copyr($source, $dest)
{
   // Simple copy for a file
   if (is_file($source)) {
      return copy($source, $dest);
   }

   // Make destination directory
   if (!is_dir($dest)) {
      mkdir($dest);
      $company = ($_POST['company']);
   }

   // Loop through the folder
   $dir = dir($source);
   while (false !== $entry = $dir->read()) {
      // Skip pointers
      if ($entry == '.' || $entry == '..') {
         continue;
      }

      // Deep copy directories
      if ($dest !== "$source/$entry") {
         copyr("$source/$entry", "$dest/$entry");
      }
   }

   // Clean up
   $dir->close();
   return true;
}

copyr('Template/MemberPages', "Members/$company")

However now on my new VPS it will only create the main directory, but will not copy any of the files to it. I don't understand what could have changed between the 2 VPS's?

回答1:

Try something like this:

$source = "dir/dir/dir";
$dest= "dest/dir";

mkdir($dest, 0755);
foreach (
 $iterator = new \RecursiveIteratorIterator(
  new \RecursiveDirectoryIterator($source, \RecursiveDirectoryIterator::SKIP_DOTS),
  \RecursiveIteratorIterator::SELF_FIRST) as $item
) {
  if ($item->isDir()) {
    mkdir($dest . DIRECTORY_SEPARATOR . $iterator->getSubPathName());
  } else {
    copy($item, $dest . DIRECTORY_SEPARATOR . $iterator->getSubPathName());
  }
}

Iterator iterate through all folders and subfolders and make copy of files from $source to $dest

回答2:

Could I suggest that (assuming it's a *nix VPS) that you just do a system call to cp -r and let that do the copy for you.

回答3:

I have changed Joseph's code (below), because it wasn't working for me. This is what works:

function cpy($source, $dest){
    if(is_dir($source)) {
        $dir_handle=opendir($source);
        while($file=readdir($dir_handle)){
            if($file!="." && $file!=".."){
                if(is_dir($source."/".$file)){
                    if(!is_dir($dest."/".$file)){
                        mkdir($dest."/".$file);
                    }
                    cpy($source."/".$file, $dest."/".$file);
                } else {
                    copy($source."/".$file, $dest."/".$file);
                }
            }
        }
        closedir($dir_handle);
    } else {
        copy($source, $dest);
    }
}

[EDIT] added test before creating a directory (line 7)

回答4:

The Symfony's FileSystem Component offers a good error handling as well as recursive remove and other useful stuffs. Using @OzzyCzech's great answer, we can do a robust recursive copy this way:

use Symfony\Component\Filesystem\Filesystem;

// ...

$fileSystem = new FileSystem();

if (file_exists($target))
{
    $this->fileSystem->remove($target);
}

$this->fileSystem->mkdir($target);

$directoryIterator = new \RecursiveDirectoryIterator($source, \RecursiveDirectoryIterator::SKIP_DOTS);
$iterator = new \RecursiveIteratorIterator($directoryIterator, \RecursiveIteratorIterator::SELF_FIRST);
foreach ($iterator as $item)
{
    if ($item->isDir())
    {
        $fileSystem->mkdir($target . DIRECTORY_SEPARATOR . $iterator->getSubPathName());
    }
    else
    {
        $fileSystem->copy($item, $target . DIRECTORY_SEPARATOR . $iterator->getSubPathName());
    }
}

Note: you can use this component as well as all other Symfony2 components standalone.

回答5:

Here's what we use at our company:

static public function copyr($source, $dest)
{
    // recursive function to copy
    // all subdirectories and contents:
    if(is_dir($source)) {
        $dir_handle=opendir($source);
        $sourcefolder = basename($source);
        mkdir($dest."/".$sourcefolder);
        while($file=readdir($dir_handle)){
            if($file!="." && $file!=".."){
                if(is_dir($source."/".$file)){
                    self::copyr($source."/".$file, $dest."/".$sourcefolder);
                } else {
                    copy($source."/".$file, $dest."/".$file);
                }
            }
        }
        closedir($dir_handle);
    } else {
        // can also handle simple copy commands
        copy($source, $dest);
    }
}

回答6:

This function copies folder recursivley very solid. I've copied it from the comments section on copy command of php.net

function recurse_copy($src,$dst) { 
    $dir = opendir($src); 
    @mkdir($dst); 
    while(false !== ( $file = readdir($dir)) ) { 
        if (( $file != '.' ) && ( $file != '..' )) { 
            if ( is_dir($src . '/' . $file) ) { 
                recurse_copy($src . '/' . $file,$dst . '/' . $file); 
            } 
            else { 
                copy($src . '/' . $file,$dst . '/' . $file); 
            } 
        } 
    } 
    closedir($dir); 
}

回答7:

OzzyCheck's is elegant and original, but he forgot the initial mkdir($dest); See below. No copy command is ever provided with contents only. It must fulfill its entire role.

$source = "dir/dir/dir";
$dest= "dest/dir";

mkdir($dest, 0755);
foreach (
  $iterator = new RecursiveIteratorIterator(
  new RecursiveDirectoryIterator($source, RecursiveDirectoryIterator::SKIP_DOTS),
  RecursiveIteratorIterator::SELF_FIRST) as $item) {
  if ($item->isDir()) {
    mkdir($dest . DIRECTORY_SEPARATOR . $iterator->getSubPathName());
  } else {
    copy($item, $dest . DIRECTORY_SEPARATOR . $iterator->getSubPathName());
  }
}

回答8:

function recurse_copy($source, $dest)
{
    // Check for symlinks
    if (is_link($source)) {
        return symlink(readlink($source), $dest);
    }

    // Simple copy for a file
    if (is_file($source)) {
        return copy($source, $dest);
    }

    // Make destination directory
    if (!is_dir($dest)) {
        mkdir($dest);
    }

    // Loop through the folder
    $dir = dir($source);
    while (false !== $entry = $dir->read()) {
        // Skip pointers
        if ($entry == '.' || $entry == '..') {
            continue;
        }

        // Deep copy directories
        recurse_copy("$source/$entry", "$dest/$entry");
    }

    // Clean up
    $dir->close();
    return true;
}

回答9:

Here's a simple recursive function to copy entire directories

source: http://php.net/manual/de/function.copy.php

<?php 
function recurse_copy($src,$dst) { 
    $dir = opendir($src); 
    @mkdir($dst); 
    while(false !== ( $file = readdir($dir)) ) { 
        if (( $file != '.' ) && ( $file != '..' )) { 
            if ( is_dir($src . '/' . $file) ) { 
                recurse_copy($src . '/' . $file,$dst . '/' . $file); 
            } 
            else { 
                copy($src . '/' . $file,$dst . '/' . $file); 
            } 
        } 
    } 
    closedir($dir); 
} 
?>

回答10:

I guess you should check user(group)rights. You should consider chmod for example, depending on how you run (su?)PHP. You could possibly also choose to modify your php configuration.

回答11:

hmm. as that's complicated ))

function mkdir_recursive( $dir ){
  $prev = dirname($dir);
  if( ! file_exists($prev))
  {
    mkdir_recursive($prev);
  }
  if( ! file_exists($dir))
  {
     mkdir($dir);
  }
}

...

foreach( $files as $file){
  mkdir_recursive( dirname( $dir_d . $file));
  copy( $dir_s . $file, $dir_d . $file);
}

$file - somthing like that www/folder/ahah/file.txt

回答12:

Why not just ask the OS to take care of this?

system("cp -r olddir newdir");

Done.

回答13:

There were some issues with the functions that I tested in the thread and here is a powerful function that covers everything. Highlights:

No need to have an initial or intermediate source directories. All of the directories up to the source directory and to the copied directories will be handled.

Ability to skip directory or files from an array. (optional) With the global $skip; skipping of files even under sub level directories are handled.

Full recursive support, all the files and directories in multiple depth are supported.

$from = "/path/to/source_dir";
$to = "/path/to/destination_dir";
$skip = array('some_file.php', 'somedir');

copy_r($from, $to, $skip);

function copy_r($from, $to, $skip=false) {
    global $skip;
    $dir = opendir($from);
    if (!file_exists($to)) {mkdir ($to, 0775, true);}
    while (false !== ($file = readdir($dir))) {
        if ($file == '.' OR $file == '..' OR in_array($file, $skip)) {continue;}

        if (is_dir($from . DIRECTORY_SEPARATOR . $file)) {
            copy_r($from . DIRECTORY_SEPARATOR . $file, $to . DIRECTORY_SEPARATOR . $file);
        }
        else {
            copy($from . DIRECTORY_SEPARATOR . $file, $to . DIRECTORY_SEPARATOR . $file);
        }
    }
    closedir($dir);
}

回答14:

<?php

/**
 * code by Nk (nk.have.a@gmail.com)
 */

class filesystem
{
    public static function normalizePath($path)
    {
        return $path.(is_dir($path) && !preg_match('@/$@', $path) ? '/' : '');      
    }

    public static function rscandir($dir, $sort = SCANDIR_SORT_ASCENDING)
    {
        $results = array();

        if(!is_dir($dir))
        return $results;

        $dir = self::normalizePath($dir);

        $objects = scandir($dir, $sort);

        foreach($objects as $object)
        if($object != '.' && $object != '..')
        {
            if(is_dir($dir.$object))
            $results = array_merge($results, self::rscandir($dir.$object, $sort));
            else
            array_push($results, $dir.$object);
        }

        array_push($results, $dir);

        return $results;
    }

    public static function rcopy($source, $dest, $destmode = null)
    {
        $files = self::rscandir($source);

        if(empty($files))
        return;

        if(!file_exists($dest))
        mkdir($dest, is_int($destmode) ? $destmode : fileperms($source), true);

        $source = self::normalizePath(realpath($source));
        $dest = self::normalizePath(realpath($dest));

        foreach($files as $file)
        {
            $file_dest = str_replace($source, $dest, $file);

            if(is_dir($file))
            {
                if(!file_exists($file_dest))
                mkdir($file_dest, is_int($destmode) ? $destmode : fileperms($file), true);
            }
            else
            copy($file, $file_dest);
        }
    }
}

?>

/var/www/websiteA/backup.php :

<?php /* include.. */ filesystem::rcopy('/var/www/websiteA/', '../websiteB'); ?>

来源：https://stackoverflow.com/questions/5707806/recursive-copy-of-directory

标签

php

copy

dir