PHP: Recursively Backup Files & Folders to ZIP-File

backup.php

<?php
/*
 * PHP: Recursively Backup Files & Folders to ZIP-File
 * MIT-License - 2012-2018 Marvin Menzerath
*/

// Make sure the script can handle large folders/files
ini_set('max_execution_time', 600);
ini_set('memory_limit', '1024M');

// Start the backup!
zipData('/path/to/folder', '/path/to/backup.zip');
echo 'Finished.';

// Here the magic happens :)
function zipData($source, $destination) {
	if (extension_loaded('zip')) {
		if (file_exists($source)) {
			$zip = new ZipArchive();
			if ($zip->open($destination, ZIPARCHIVE::CREATE)) {
				$source = realpath($source);
				if (is_dir($source)) {
					$files = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($source, RecursiveDirectoryIterator::SKIP_DOTS), RecursiveIteratorIterator::SELF_FIRST);
					foreach ($files as $file) {
						$file = realpath($file);
						if (is_dir($file)) {
							$zip->addEmptyDir(str_replace($source . '/', '', $file . '/'));
						} else if (is_file($file)) {
							$zip->addFromString(str_replace($source . '/', '', $file), file_get_contents($file));
						}
					}
				} else if (is_file($source)) {
					$zip->addFromString(basename($source), file_get_contents($source));
				}
			}
			return $zip->close();
		}
	}
	return false;
}
?>

It does not appear to be working for me.

Have made the change mentioned above:
function zipData($folder, $zipTo)
to:
function zipData($source, $destination)

Not sure what chmod is.

Any suggestions?

As previously noted this program did not work for me. The above people who had success may have been using unix - it would be interesting to know if that was the case.

For Windows users (i'm presuming this is the point of difference) there is a minor change needed. Where ever the forward slash is used it needs to be replaced with a backslash and of course escaped.

So there are two lines of code that need to be modified as shown below:

$zip->addEmptyDir(str_replace($source . '\', '', $file . '\'));
$zip->addFromString(str_replace($source . '\', '', $file), file_get_contents($file));

it worked for me ,i only assigned value to source variable i.e $source="upload"; then did the escaping for windows. thanks sirgentcode from nigeria

It works, but one problem is that it resets the date/time to the moment the backup was made, not when the original file/folder was made. I rely on these rather crude numbers to find out modifications.

Good

It did not work for me

For windows use this code

function zipData($source, $destination) {
if (extension_loaded('zip')) {
if (file_exists($source)) {
$zip = new ZipArchive();
if ($zip->open($destination, ZIPARCHIVE::CREATE)) {
$source = realpath($source);
if (is_dir($source)) {
$iterator = new RecursiveDirectoryIterator($source);
// skip dot files while iterating
$iterator->setFlags(RecursiveDirectoryIterator::SKIP_DOTS);
$files = new RecursiveIteratorIterator($iterator, RecursiveIteratorIterator::SELF_FIRST);
foreach ($files as $file) {
$file = realpath($file);
if (is_dir($file)) {
$zip->addEmptyDir(str_replace($source . '', '', $file . ''));
} else if (is_file($file)) {
$zip->addFromString(str_replace($source . '', '', $file), file_get_contents($file));
}
}
} else if (is_file($source)) {
$zip->addFromString(basename($source), file_get_contents($source));
}
}
return $zip->close();
}
}
return false;
}
worked for me

Thanks It works. A note for beginners:
You should change this code:
zipData('myfolder', 'backup.zip');
The first line is a folder the is beside backup.php. So "myfolder" and backup.php are in one folder.

when the files are extracted, their permissions is not the same. i'm using php version 5.6.23

I added a check for empty dir, so that downloading the zip file doesn't throw an error

`<?php function zipData($source, $destination) {

//Added check for empty dir, so that downloading the zip file doesn't throw an error
if (extension_loaded('zip') && file_exists($source) && count(glob($source . DS . '*')) !== 0) {

        $zip = new \ZipArchive();
        if ($zip->open($destination, \ZIPARCHIVE::CREATE)) {
            $source = realpath($source);
            if (is_dir($source)) {
                $iterator = new \RecursiveDirectoryIterator($source);
                // skip dot files while iterating
                $iterator->setFlags(RecursiveDirectoryIterator::SKIP_DOTS);
                $files = new \RecursiveIteratorIterator($iterator, \RecursiveIteratorIterator::SELF_FIRST);

                foreach ($files as $file) {
                    $file = realpath($file);
                    if (is_dir($file)) {
                        $zip->addEmptyDir(str_replace($source . '', '', $file . ''));
                    } else if (is_file($file)) {
                        $zip->addFromString(str_replace($source . '', '', $file), file_get_contents($file));
                    }
                }
            } else if (is_file($source)) {
                $zip->addFromString(basename($source), file_get_contents($source));
            }
        }
        return $zip->close();
    }

return false;

}
?>`

My backup folder is within the root directory. How do I exclude the backup folder?

//kjin uploads file backup
function zipData($source, $destination) {
if (extension_loaded('zip')) {
if (file_exists($source)) {
$zip = new ZipArchive();
if ($zip->open($destination, ZIPARCHIVE::CREATE)) {
$source = realpath($source);
echo $source;
if (is_dir($source)) {
$iterator = new RecursiveDirectoryIterator($source);
// skip dot files while iterating
$iterator->setFlags(RecursiveDirectoryIterator::SKIP_DOTS);
$files = new RecursiveIteratorIterator($iterator, RecursiveIteratorIterator::SELF_FIRST);
foreach ($files as $file) {
$file = realpath($file);
if (is_dir($file)) {
$zip->addEmptyDir(str_replace($source . '/', '', $file . '/'));
} else if (is_file($file)) {
$zip->addFromString(str_replace($source . '/', '', $file), file_get_contents($file));
}
}
} else if (is_file($source)) {
$zip->addFromString(basename($source), file_get_contents($source));
}
}
return $zip->close();
}
}
return false;
}

    ini_set('max_execution_time', 600);
    ini_set('memory_limit','1024M');
    zipData($upload_dir['basedir'], content_url().'/backup.zip');

It is not working

Help me
Code has done in wp
but i couldn't see zip file

Hello, Everyone .
Help me. Please

done. I am ok

And then i gonna restore from backup
But i couldn't get filename and ext, path of backup zip files after uploading in php
Everyone help me.
if you are interested here
Thanks. will wait

Hello, everyone.
How are you?
I am facing allowed memory error about zip file creation of 10gbyte directory with 3gbyte zip file.
so i googled.
There says that i should removing file_get_contents and use addFile function.
But it is now working.
I hope you help me and i get backup any file size by this github
Thanks.

Nice script. But i use addFile instead addFromString in my backup script:

// ...code
if (is_dir($source) === true) {
    $files = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($source), RecursiveIteratorIterator::SELF_FIRST);

    foreach ($files as $file) {
        $file = realpath($file);

        if (is_dir($file) === true) {
            $zip->addEmptyDir(str_replace($source . '/', '', $file . '/'));

        } else if (is_file($file) === true) {
            $zip->addFile($file, str_replace($source . '/', '', $file));
        }
    }
} else if (is_file($source) === true) {
        $zip->addFile($source, basename($source));
}
// ...code

it's working fine thank u

how can i change dir and file name for each loop through data ??????

Hello Everyone,
Thanks for providing such a nice script to create an archive using php.
I have used this code to create backups of my website.
The code is working perfectly fine but I have an issue i.e. when I run this script at very first, it creates an archive - that is good but if I run the script again it creates an archive which overrides the previous one and includes that old archive into new one.
I want to exclude .zip files from compression.
Can you please help me in this matter?
I want to create an archive which should not contain any archive or .zip file into it.
I will be waiting for kind and positive response.
Thanks & Regards,
Mayank

@toddsby Thanks!

I use this both on Linux and Windows:

$source = <absolute pathname to directory/file to be zipped> . DIRECTORY_SEPARATOR;
$fileName = "myfiles.zip";
$destination = <absolute pathname to destination directory> . DIRECTORY_SEPARATOR . $fileName;

function zip_files( $source, $destination ) 
{
  $zip = new ZipArchive();
  if($zip->open($destination, ZIPARCHIVE::CREATE) === true) {
    $source = realpath($source);
    if(is_dir($source)) {
      $iterator = new RecursiveDirectoryIterator($source);
      $iterator->setFlags(RecursiveDirectoryIterator::SKIP_DOTS);
      $files = new RecursiveIteratorIterator($iterator, RecursiveIteratorIterator::SELF_FIRST);
      foreach($files as $file) {
        $file = realpath($file);
        if(is_dir($file)) {
          $zip->addEmptyDir(str_replace($source . DIRECTORY_SEPARATOR, '', $file . DIRECTORY_SEPARATOR));
        }elseif(is_file($file)) {
          $zip->addFile($file,str_replace($source . DIRECTORY_SEPARATOR, '', $file));
        }
      }
    }elseif(is_file($source)) {
      $zip->addFile($source,basename($source));
    }
  }
  return $zip->close();
}

Hello Everyone,
Thanks for providing such a nice script to create an archive using php.
I have used this code to create backups of my website.
The code is working perfectly fine but I have an issue i.e. when I run this script at very first, it creates an archive - that is good but if I run the script again it creates an archive which overrides the previous one and includes that old archive into new one.
I want to exclude .zip files from compression.
Can you please help me in this matter?
I want to create an archive which should not contain any archive or .zip file into it.
I will be waiting for kind and positive response.
Thanks & Regards,
Mayank

Just replace few line and this issue will solve, everytime it will create a new zip
$dest=time()."backup.zip";
zipData('screenshots', $dest);
echo 'Finished.';

Hi,
@prashantkumarabhishek
You are right, But make sure to do not keep backups in site root. Keep it in Hosting root.
Thank you.

Maybe include "exclude folder/file" option now ?

Add ignored list (Array) and directory separator compatibility

`function zipData($source, $destination, $ignores = []) {
if (extension_loaded('zip')) {
if (file_exists($source)) {
$zip = new ZipArchive();
if ($zip->open($destination, ZIPARCHIVE::CREATE)) {
if (is_dir($source)) {
$files = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($source, RecursiveDirectoryIterator::SKIP_DOTS), \RecursiveIteratorIterator::SELF_FIRST);
foreach ($files as $file) {

					$ignored = false;

					foreach ($ignores as $ignore) {
						if(strpos($file, $ignore)){
							$ignored = true;
							break;
						}
					}

					if($ignored){
						continue;
					}

					if (is_dir($file)) {
						$zip->addEmptyDir(str_replace($source . DIRECTORY_SEPARATOR, '', $file . DIRECTORY_SEPARATOR));
					} else if (is_file($file)) {
						echo(str_replace($source . DIRECTORY_SEPARATOR, '', $file . DIRECTORY_SEPARATOR).'<br>');
						$zip->addFromString(str_replace($source . DIRECTORY_SEPARATOR, '', $file), file_get_contents($file));
					}
				}
			} else if (is_file($source)) {
				$zip->addFromString(basename($source), file_get_contents($source));
			}
		}
		return $zip->close();
	}
}
return false;

}`

In the same lane.
What about a backup program which takes files from a dir and all subdirs newer than a specific date and zips it.

I cant get it to work. is this not working with newer PHP versions? 7.2?

is this code can create zip up 10 GB files into backup of any sites ?