How to switch from POST to GET in PHP CURL

Make sure that you're putting your query string at the end of your URL when doing a GET request.

$qry_str = "?x=10&y=20";$ch = curl_init();// Set query data here with the URLcurl_setopt($ch, CURLOPT_URL, 'http://example.com/test.php' . $qry_str); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);curl_setopt($ch, CURLOPT_TIMEOUT, 3);$content = trim(curl_exec($ch));curl_close($ch);print $content;

With a POST you pass the data via the CURLOPT_POSTFIELDS option insteadof passing it in the CURLOPT__URL.

$qry_str = "x=10&y=20";curl_setopt($ch, CURLOPT_URL, 'http://example.com/test.php');  curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);curl_setopt($ch, CURLOPT_TIMEOUT, 3);// Set request method to POSTcurl_setopt($ch, CURLOPT_POST, 1);// Set query data here with CURLOPT_POSTFIELDScurl_setopt($ch, CURLOPT_POSTFIELDS, $qry_str);$content = trim(curl_exec($ch));curl_close($ch);print $content;

Note from the curl_setopt() docs for CURLOPT_HTTPGET (emphasis added):

[Set CURLOPT_HTTPGET equal to] TRUE to reset the HTTP request method to GET.
Since GET is the default, this is only necessary if the request method has been changed.

Add this before calling curl_exec($curl_handle)

curl_setopt($curl_handle, CURLOPT_CUSTOMREQUEST, 'GET');

Solved: The problem lies here:

I set POST via both _CUSTOMREQUEST and _POST and the _CUSTOMREQUEST persisted as POST while _POST switched to _HTTPGET. The Server assumed the header from _CUSTOMREQUEST to be the right one and came back with a 411.

curl_setopt($curl_handle, CURLOPT_CUSTOMREQUEST, 'POST');