php - ZIP all files in directory and download .zip generated -

well, first of all, folder structure:

images/  image1.png image11.png image111.png image223.png generate_zip.php 

and mine generate_zip.php:

<?php      $files = array($listfiles);      $zipname = 'adcs.zip';     $zip = new ziparchive;     $zip->open($zipname, ziparchive::create);     foreach ($files $file) {       $zip->addfile($file);     }     $zip->close();      header('content-type: application/zip');     header("content-disposition: attachment; filename='adcs.zip'");     header('content-length: ' . filesize($zipname));     header("location: adcs.zip");      ?> 

how gather files "images/" folder, except "generate_zip.php", , make downloadable .zip? in case "images/" folder have different image. possible?

this ensure file .php extension not added:

   foreach ($files $file) {         if(!strstr($file,'.php')) $zip->addfile($file);     } 

edit: here's full code rewritten:

<?php      $zipname = 'adcs.zip';     $zip = new ziparchive;     $zip->open($zipname, ziparchive::create);     if ($handle = opendir('.')) {       while (false !== ($entry = readdir($handle))) {         if ($entry != "." && $entry != ".." && !strstr($entry,'.php')) {             $zip->addfile($entry);         }       }       closedir($handle);     }      $zip->close();      header('content-type: application/zip');     header("content-disposition: attachment; filename='adcs.zip'");     header('content-length: ' . filesize($zipname));     header("location: adcs.zip");      ?>