PHP script to remotely create zip archives of your FTP

zip.php

<?php

/*
 *
 * This script will backup your web site by remotely archiving all files on the root FTP directory.
 * It will work even if your web server is memory limited buy splitting zips in several arhive files it they are too many files.
 * All zip files will be stored in a directory called temporary which must be writable.
 *
 * How to use it:
 * - Place the script at the root of your FTP.
 * - Call http://yoursite.com/zip.php
 * - In your FTP client go to temporary folder and download all backup_xxxxxx_x.zip files locally
 * - Unzip everything with this command: for i in *.zip; do unzip $i; done;
 * - Finally to avoid security issues, remove the script from the FTP.
 * 
 */

// increase script timeout value
ini_set('max_execution_time', 5000);

function show($str){
   echo $str . "<br/>\n";
   flush();
   ob_flush();
}

$date = getdate();
$splitNum = 0;

$archive = "temporary/backup_" . $date[0];
$currentArchive = $archive . "_" . $splitNum . ".zip";

$zip = new ZipArchive();
if ($zip->open($currentArchive, ZIPARCHIVE::CREATE) !== TRUE) {
    die ("Could not open archive");
}

$numFiles = 0;
$iterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator("./"));
foreach ($iterator as $key=>$value){
   $numFiles += 1;
}
show( "Will backup $numFiles to $archive.zip" );

$iterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator("./"));
$numFiles = 0;
$counter = 0;
$maxFilePerArchive = 1000;
foreach ($iterator as $key=>$value){
   $counter += 1;
   if ($counter >= $maxFilePerArchive) {
      $currentArchive = $archive . "_" . $splitNum++ . ".zip";
      show( "Too many files: splitting archive, new archive is $currentArchive" ); 
      $zip->close();
      $zip = new ZipArchive();
      if ($zip->open($currentArchive, ZIPARCHIVE::CREATE) !== TRUE) {
          die ("Could not open archive");
      }
      $counter = 0;
   }
   //$i = $maxFilePerArchive*$splitNum + $counter; 
   if (! preg_match('/temporary\/backup_' . $date[0] . '/', $key)){
      $zip->addFile(realpath($key), $key) or die ("ERROR: Could not add file: $key");
      $numFiles += 1;
      if ($numFiles % 300 == 0) {
         show( "$numFiles" );
      }
   } else {
      show( "Not backuping this file -> $key" );
   }
}
// close and save archive
$zip->close();
show( "Archive created successfully with $numFiles files." );

?>

Doesn't seem to work, on neither HostGator, BlueHost or GoDaddy hosting. Says it's creating several backups.
Splits a fresh wordpress installation into 6 zip files. That's a bit silly.
But then no zip files or temporary folder is actually being created. No error out put and no error log.

Not working , "Will backup 30368 to temporary/backup_1487883088.zip
ERROR: Could not add file: ./.."

Hello, without manually creating folder "temporary", where zip.php is located on ftp, it wouldnt work :)
Maybe thats what others encountered too.

Is anyone going to add to this to fix up the basic errors and make it more useable. such as being able tto put backup in ANY folder in the root /public_html or /htdocs folder (chosen by user on some kind of UI/Interface which could have other options also)? A design for interface is needed also IMHO. Tweet Me if you want to work on this with me @Code_Collective

Will backup 5 to temporary/backup_1657823074.zip
Archive created successfully with 5 files.

So, where is the temporary folder?

There are any bash version to compress public_html and send to remote destination?