Posted By

paulgrenwood on 09/23/09


Tagged

php zip


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Zip Files on the Fly


 / Published in: PHP
 

  1. /* creates a compressed zip file */
  2. function create_zip($files = array(),$destination = '',$overwrite = false) {
  3. //if the zip file already exists and overwrite is false, return false
  4. if(file_exists($destination) && !$overwrite) { return false; }
  5. //vars
  6. $valid_files = array();
  7. //if files were passed in...
  8. if(is_array($files)) {
  9. //cycle through each file
  10. foreach($files as $file) {
  11. //make sure the file exists
  12. if(file_exists($file)) {
  13. $valid_files[] = $file;
  14. }
  15. }
  16. }
  17. //if we have good files...
  18. if(count($valid_files)) {
  19. //create the archive
  20. $zip = new ZipArchive();
  21. if($zip->open($destination,$overwrite ? ZIPARCHIVE::OVERWRITE : ZIPARCHIVE::CREATE) !== true) {
  22. return false;
  23. }
  24. //add the files
  25. foreach($valid_files as $file) {
  26. $zip->addFile($file,$file);
  27. }
  28. //debug
  29. //echo 'The zip archive contains ',$zip->numFiles,' files with a status of ',$zip->status;
  30.  
  31. //close the zip -- done!
  32. $zip->close();
  33.  
  34. //check to make sure the file exists
  35. return file_exists($destination);
  36. }
  37. else
  38. {
  39. return false;
  40. }
  41. }
  42. /***** Example Usage ***/
  43. $files=array('file1.jpg', 'file2.jpg', 'file3.gif');
  44. create_zip($files, 'myzipfile.zip', true);

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