heroku - which one is more reliable in php ftp_connect vs file_put_content(ftp://) -


in php restful api running on heroku dyno, since api accept user upload files view ($_files) -form post- need forward uploaded files ftp server persist them since heroku not have storage.

i googled around find best way achieve , found 2 methods

code example show both methods

// common code: $tmp_file_path = $_files['image']['tmp_name']; $raw_filename = explode('.',$_files['image']['name']); $extention = array_pop($raw_filename); $filename = md5(implode('.',$raw_filename)).$extention;  // 1st: ftp_put_content; $content = file_get_contents($tmp_file_path); // additional stream required per http://php.net/manual/en/function.file-put-contents.php#96217 $stream = stream_context_create(['ftp' => ['overwrite' => true]]);  $upload_success = file_put_content('ftp://username:password@ftpserver.com/'+$filename, $content, 0, $stream);  // 2nd: ftp_put $conn_id = ftp_connect("ftp.simpleinformatics.com"); $login_result = ftp_login($conn_id, "username", "password"); ftp_pasv($conn_id, true); //for somereason ftp serve requires ! if (!$conn_id or !$login_result) $upload_success = false; $ftp_upload_success = ftp_put($conn_id,'/'.$filename, $tmp_file_path);  echo "file_put_content" . ($upload_success ? "upload success" : 'file upload failed');  echo "ftp_put" . ($ftp_upload_success ? "upload success" : 'file upload failed');

i test 2 methods against ftp server , both works yet worried reliability, there few documentation details of how 2 methods works i'm not sure of couple things.

  1. can use file_put_content flags when putting ftp file ? file_append or lock_ex ?
  2. what happen if uploading folder not yet exists ?
  3. which method more reliable , less prone fail ?
  4. although file_put_contents less verbose, need read file content first before writing, can cause memory problem ?

  1. ftp url wrapper supports appending of php 5:
    https://secure.php.net/manual/en/wrappers.ftp.php#refsect1-wrappers.ftp-options
  2. ftp folder not created, using method. have take care of yourself.
  3. too broad.
  4. unclear.

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