PHP CURL Error - curl: (56) Recv failure: Connection reset by peer

Question

basically, this error only occurs in CURL

curl: (56) Recv failure: Connection reset by peer

But when I visit it directly the link directly

Answer 1

I had similar problem with this code:

        $url = "http://xxx.xxx.xxx.xxx";
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_PORT, 44455); //Set the port to connect to
        //curl_setopt($ch, CURLOPT_RETURNTRANSFER, 44455); 
        curl_setopt($ch, CURLOPT_URL, $url);
        echo $xml = curl_exec($ch);
        if(curl_errno($ch))
        {
            echo 'error:' . curl_error($ch);
        }
        curl_close($ch);

Got it solved by disabling this:

        //curl_setopt($ch, CURLOPT_RETURNTRANSFER, 44455);

Answer 2

I remember facing the same issue a long time back. While I don't remember what exactly sorted out the issue, I remember trying the following:

1. I was trying to pass the query parameters in the URL directly and I tried passing through POST method

2. I tried using a proxy with curl to see if I was possibly being blocked by the other server

3. I believe I also asked my host to look into it and they made some Apache setting changes

Answer 3

I resolved this issue by removing whitespace characters from the URL. In my situation, it was the proxy server that was erroring out, not the web server.

In PHP:

     curl_setopt($ch, CURLOPT_URL, trim($url));