Question

It says the browser sent a request the server could not understand .. I don’t exactly understand what went wrong in my PHP code. Can someone please help me understand where I went wrong. Thanks !

<?php
    $url ="http://127.0.0.1/sensor/sens/data.php";
    $xml_data = file_get_contents("/usr/local/www/data/data.xml");
    $header ="POST HTTP/1.0 \r\n";
    $header .="Content-type: text/xml \r\n";
    $header .="Content-length: ".strlen($xml_data)." \r\n";
    $header .="Content-transfer-encoding: text\r\n";
    $header .="Connection: close \r\n\r\n";
    $header .= $xml_data;
    $ch = curl_init();
    curl_setopt ($ch,CURLOPT_SSL_VERIFYPEER, 0);
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch,CURLOPT_POST,true);
    curl_setopt($ch,CURLOPT_POSTFIELDS,$header);
    curl_setopt($ch, CURLOPT_HEADER, 1);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_TIMEOUT, 4);
    curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $header);
    $data = curl_exec($ch);  // if the post is successful , the server will return some data.
    echo $data;

    #$info = curl_getinfo($ch);
    #
    #if(!curl_errno($ch))
    #   echo 'It took '.$info['total_time'].'seconds to send a request to'.$info['url'];
    #
    #   else
    #

    curl_close($ch);
    echo $data;







    ?>

Answer 1

I think the problem is with CURLOPT_POSTFIELDS

From the PHP Manual…

The full data to post in a HTTP “POST” operation. To post a file, prepend a filename with @ and use the full path. The filetype can be explicitly specified by following the filename with the type in the format ‘;type=mimetype’. This parameter can either be passed as a urlencoded string like ‘para1=val1&para2=val2&…’ or as an array with the field name as key and field data as value. If value is an array, the Content-Type header will be set to multipart/form-data. As of PHP 5.2.0, value must be an array if files are passed to this option with the @ prefix.

http://php.net/manual/en/function.curl-setopt.php

It should hold just the payload and not the entire header.