CODEWITHSUNDEEP
phpcakephpzip
Glenn Curtis
Glenn Curtis

Reputation: 659

CakePHP making Zip files, getting file 'bytes exhausted' error message?

I am working with Files and Folders within CakePHP. Now everything works fine and in the way I want it to. However, when Zipping files, I get the following error message :

Error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 240047685 bytes)

Now zipping smaller files, its fine! I have even done files in size of around 10MB without any issues, however zipping that are larger in size seem to have an issue.

Now I have added the following to my .htaccess file and made a php.ini file as I thought that might be the issue.

php_value upload_max_filesize 640000000M
php_value post_max_size 640000000M
php_value max_execution_time 30000000
php_value max_input_time 30000000

Until I found some posts pointing at the fact that PHP as a 4GB file limit. Well even if that is the case, why does my zip file not do this file (which is only about 245mb).

   public function ZippingMyData() {
     $UserStartPath = '/data-files/tmp/';
     $MyFileData = $this->data['ZipData']; //this is the files selected from a form!

      foreach($MyFileData as $DataKey => $DataValue) {
        $files = array($UserStartPath.$DataValue);
        $zipname = 'file.zip';
        $zip = new ZipArchive();
        $zip_name = time().".zip"; // Zip name
        $zip->open($zip_name,  ZipArchive::CREATE);

        foreach ($files as $file) {
         $path = $file;
                if(file_exists($path)) {
            $zip->addFromString(basename($path),  file_get_contents($path));  
                } else {
            echo"file does not exist";
            }
        } //End of foreach loop for $files
      } //End of foreach for $myfiledata

      $this->set('ZipName', $zip_name);
      $this->set('ZipFiles', $MyFileData);
      $zip->close();
      copy($zip_name,$UserStartPath.$zip_name);
      unlink($zip_name); //After copy, remove temp file.
      $this->render('/Pages/download');
    } //End of function

Any ideas of where I am going wrong? I will state that this is NOT my code, I found bits of it on others posts and changed it to fit my needs for my project!

All help most welcome...

Thanks

Glenn.

Upvotes: 1

Views: 889

Answers (1)

AndrewQ
AndrewQ

Reputation: 420

I think that ZipArchive loads your file in memory, so you have to increase the memory_limit parameter in php.ini.
To avoid consuming all the memory of your server and drop performance, if your file is big, a better (but far from be the best) solution should be: 

 public function ZippingMyData() {
 $UserStartPath = '/data-files/tmp/';
 $MyFileData = $this->data['ZipData']; //this is the files selected from a form!

 foreach($MyFileData as $DataKey => $DataValue) {
    $files = array($UserStartPath.$DataValue);
    $zip_name = time().".zip"; // Zip name
    // Instead of a foreach you can put all the files in a single command:
    // /usr/bin/zip $UserStartPath$zip_name $files[0] $files[1] and so on
    foreach ($files as $file) {
      $path = $file;
      if(file_exists($path)) {
        exec("/usr/bin/zip $UserStartPath$zip_name basename($path)");  
      } else {
        echo"file does not exist";
      }
    } //End of foreach loop for $files
  } //End of foreach for $myfiledata

  $this->render('/Pages/download');
} //End of function

or similar (depends on your server). This solution has only two limits: disk space and zip limitations.
I apologize for the poor quality of my code and for any error.

Upvotes: 1

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