How to resolve HTTP/1.1 400 Bad Request in curl php

Question

I have to hit one .aspx page url from php code i am trying to hiting using curl but i am getting bellow error and there is no white space in url.

HTTP/1.1 400 Bad Request Content-Type: text/html; charset=us-ascii Server: Microsoft-HTTPAPI/2.0 Date: Mon, 05 Oct 2015 08:31:13 GMT Connection: close Content-Length: 311

Bellow is the code of curl which i am trying to hit.so any body will tell why iam getting this error.

$api_url = 'http://www.test/xyz/OnlineOrder.aspx?';
     $url= $api_url . 'InvoiceNo=' . $invoice;
     $ch = curl_init();
     curl_setopt($ch, CURLOPT_URL, $url);
     curl_setopt($ch, CURLOPT_HEADER, 1);
     curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
     echo $data = curl_exec($ch);
     echo $status = curl_getinfo($ch, CURLINFO_HTTP_CODE);

that is the company genrate's the bar code's for generated order — Sanjay Nakate, Oct 05 '15 at 09:34
I'm thinking of the interface. How's that specified? HTTP method, parameters, headers, auth etc. — jossif, Oct 05 '15 at 09:40
target service dont have any api i just have to hit there url with some parameters like i have mentioned in the question. — Sanjay Nakate, Oct 05 '15 at 09:51
Basically, your HTTP request seems to be fine anyway, since you receive a qualified answer. I guess the server assumes something different to be sent to it. — jossif, Oct 05 '15 at 10:34

score 11 · Accepted Answer · answered Oct 05 '15 at 10:46

11

I got the Http response 200 ok I have observed carefully the url and i found one parameter with white space that was cause the Bad request.Any way if you got some thing like problem remove the white space from url and there parameter.

using urlencode($url);

answered Oct 05 '15 at 10:46

Sanjay Nakate

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sometimes urlencode() doesn't produce the desired effect. In my case neither did rawurlencode(). I had to resort to str_replace to replace the spaces ONLY to get the server to return a 200. https://stackoverflow.com/questions/38995268/php-curl-bad-request-400-mapquest-geocoding – stackOverFlew Aug 17 '16 at 13:41

score 7 · Answer 2 · answered Dec 11 '19 at 09:32

7

If it help anyone, my issue is I have to use POST method in curl but no POST parameters has been require, as API grab value from URL query string only. So, passing empty array in POSTFIELDS fixed my problem. My guess is it depends on Apache/PHP setting on server, whether it allows POST request without post parameters or not.

answered Dec 11 '19 at 09:32

softech

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Thanks, that sorted my problem. Worked fine on my local but would not work on live until I added the empty array to CURLOPT_POSTFIELDS. – Matt Jan 24 '20 at 10:06
1

This was the solution for me – sk00v Sep 23 '21 at 09:14
It works for me so. Although I don't use Apache. Thank you! – Dmitriy Korytnyi Apr 24 '23 at 00:26

How to resolve HTTP/1.1 400 Bad Request in curl php

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