Simple php method to create zip compressed files

The example in this article describes how to simply create zip compressed files in PHP. Share it with everyone for your reference, the details are as follows:

/* creates a compressed zip file */
function create_zip($files = array(),$destination = '',$overwrite = false) {
  //if the zip file already exists and overwrite is false, return false
  if(file_exists($destination) && !$overwrite) { return false; }
  //vars
  $valid_files = array();
  //if files were passed in...
  if(is_array($files)) {
    //cycle through each file
    foreach($files as $file) {
      //make sure the file exists
      if(file_exists($file)) {
        $valid_files[] = $file;
      }
    }
  }
  //if we have good files...
  if(count($valid_files)) {
    //create the archive
    $zip = new ZipArchive();
    if($zip->open($destination,$overwrite ? ZIPARCHIVE::OVERWRITE : ZIPARCHIVE::CREATE) !== true) {
      return false;
    }
    //add the files
    foreach($valid_files as $file) {
      $zip->addFile($file,$file);
    }
    //debug
    //echo 'The zip archive contains ',$zip->numFiles,' files with a status of ',$zip->status;
    //close the zip -- done!
    $zip->close();
    //check to make sure the file exists
    return file_exists($destination);
  }
  else
  {
    return false;
  }
}

Usage:

$files_to_zip = array(
  'preload-images/1.jpg',
  'preload-images/2.jpg',
  'preload-images/5.jpg',
  'kwicks/ringo.gif',
  'rod.jpg',
  'reddit.gif'
);
//if true, good; if false, zip creation failed
$result = create_zip($files_to_zip,'my-archive.zip');

I hope this article will be helpful to everyone in PHP programming.

The above introduces how to simply create zip compressed files in PHP, including the relevant content. I hope it will be helpful to friends who are interested in PHP tutorials.

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