how can i upload a file using PHP

box-api, php

Solution

I don't think POST form data can accept file handler created using `fopen("D:\code\php\bcs\test.data", "r");`

Try accessing file handler by using @ instead . Btw, change \ to / so you don't accidentally put some character as escape character : `$u_file = "@D:/code/php/bcs/test.data";`

You shouldn't `json_encode` the content, what if your file content is not text (says, an image/binary file) .

I think this line gives you problem too. Tried my code with this option, threw me a weird "441 Required length" error . My code works fine without this option : `curl_setopt($ch, CURLOPT_UPLOAD, true);`

Finally, here is my working code :

<?php
public function upload_file()
{
   $url = 'https://api.box.com/2.0/files/content';

   $ch = curl_init();
   curl_setopt($ch, CURLOPT_URL, $url);
   curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
   curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
   curl_setopt($ch, CURLOPT_ENCODING, "UTF-8");

   //this is my method to construct the Authorisation header
   $header_details = array($this->default_authen_header());
   curl_setopt($ch, CURLOPT_HTTPHEADER, $header_details);

   $post_vars = array();
   $post_vars['filename'] = "@C:/tmp_touch.txt";
   $post_vars['folder_id'] = 0;

   curl_setopt($ch, CURLOPT_POST, true);
   curl_setopt($ch, CURLOPT_POSTFIELDS, $post_vars);
   curl_setopt($ch, CURLOPT_URL, $url);

   $data = curl_exec($ch);
   curl_close($ch);
   return $data;
}
?>

Problem

Original source