How to upload large files above 500MB in PHP?

PHPServer Side ProgrammingProgramming

Large files can be uploaded using PHP in two ways. Both of them are discussed below −

  • By changing the upload_max_filesize limit in the php.ini file.
  • By implementing file chunk upload, that splits the upload into smaller pieces an assembling these pieces when the upload is completed.

The php.ini file can be updated as shown below −

upload_max_filesize = 50M
post_max_size = 50M
max_input_time = 300
max_execution_time = 300

This should be avoided since it would change the settings of the server and other projects too.

Updating the htacess file

php_value upload_max_filesize 50M
php_value post_max_size 50M
php_value max_input_time 300
php_value max_execution_time 300

Changing the inline setting −

<?php
   // changing the upload limits
   ini_set('upload_max_filesize', '50M');
   ini_set('post_max_size', '50M');
   ini_set('max_input_time', 300);
   ini_set('max_execution_time', 300);
   // destination folder is set
   $source = $_FILES["file-upload"]["tmp_name"];
   $destination = $_FILES["file-upload"]["name"];
   // uploaded folder is moved to the destination
   move_uploaded_file($source, $destination);
?>

Chunking

In this process, a large file is split into smaller parts and then uploaded. The ‘Plupload’ library can be downloaded and used.

<?php
   // the response function
   function verbose($ok=1,$info=""){
      // failure to upload throws 400 error
      if ($ok==0) { http_response_code(400); }
      die(json_encode(["ok"=>$ok, "info"=>$info]));
   }
   // invalid upload
   if (empty($_FILES) || $_FILES['file']['error']) {
      verbose(0, "Failed to move uploaded file.");
   }
   // upload destination
   $filePath = __DIR__ . DIRECTORY_SEPARATOR . "uploads";
   if (!file_exists($filePath)) {
      if (!mkdir($filePath, 0777, true)) {
         verbose(0, "Failed to create $filePath");
      }
   }
   $fileName = isset($_REQUEST["name"]) ? $_REQUEST["name"] : $_FILES["file"]["name"];
   $filePath = $filePath . DIRECTORY_SEPARATOR . $fileName;
   // dealing with the chunks
   $chunk = isset($_REQUEST["chunk"]) ? intval($_REQUEST["chunk"]) : 0;
   $chunks = isset($_REQUEST["chunks"]) ? intval($_REQUEST["chunks"]) : 0;
   $out = @fopen("{$filePath}.part", $chunk == 0 ? "wb" : "ab");
   if ($out) {
      $in = @fopen($_FILES['file']['tmp_name'], "rb");
      if ($in) {
         while ($buff = fread($in, 4096)) { fwrite($out, $buff); }
      } else {
         verbose(0, "Failed to open input stream");
      }
      @fclose($in);
      @fclose($out);
      @unlink($_FILES['file']['tmp_name']);
   } else {
      verbose(0, "Failed to open output stream");
   }
   // check if file was uploaded
   if (!$chunks || $chunk == $chunks - 1) {
      rename("{$filePath}.part", $filePath);
   }
   verbose(1, "Upload OK");
?>

When a file whose size is greater than 500 MB is tried to be uploaded, it successfully gets uploaded.

raja
Published on 06-Apr-2020 12:28:49
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