how to upload file using box.net API?
Try
<?php$tmpfile = $_FILES['new_file1']['tmp_name'];$filename = basename($_FILES['new_file1']['name']);$_POST['new_file1'] = '@'.$tmpfile;$upload_url = 'https://upload.box.net/api/1.0/upload/i9g1fmnnddfdr4739sxvbpXXXXXXXX/480416060';$ch = curl_init();curl_setopt($ch, CURLOPT_URL, $upload_url);curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);curl_setopt($ch, CURLOPT_POST, true);curl_setopt($ch, CURLOPT_HEADER, true);curl_setopt($ch, CURLOPT_RETURNTRANSFER,true);curl_setopt($ch, CURLOPT_POSTFIELDS, $_POST); $response = curl_exec($ch);curl_close($ch);echo $response;?>