cURL Request in diff methods

PHP
1

Hi

I want to send some data via cURL using the following methods:

  • GET
  • POST
  • PUT
  • DELETE

I got the following code from somewhere but I am not sure what to change in it to make it send data using the above HTTP method.


            curl_setopt($ch, CURLOPT_HTTPHEADER, array('Expect:'));
            curl_setopt($ch, CURLOPT_POST,1);
            curl_setopt($ch, CURLOPT_POSTFIELDS,$curlData);
            curl_setopt($ch, CURLOPT_HEADER, 0);
            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
            curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); //Set curl to return the data instead of printing it to the browser.
            curl_setopt($ch, CURLOPT_URL, 'http://example.com');

Thanks for any help

2

Hi cancer10,

You can use these options to set the type of request:

CURLOPT_CUSTOMREQUEST : A custom request method to use instead of “GET” or “HEAD” when doing a HTTP request. This is useful for doing “DELETE” or other, more obscure HTTP requests.
CURLOPT_HTTPGET : TRUE to reset the HTTP request method to GET.
CURLOPT_POST : TRUE to do a regular HTTP POST.
CURLOPT_PUT : TRUE to HTTP PUT a file. The file to PUT must be set with CURLOPT_INFILE and CURLOPT_INFILESIZE.

(source: http://stackoverflow.com/questions/2153650/how-to-start-a-get-post-put-delete-request-and-judge-request-type-in-php)

3

I am trying to send data in 4 ways but getting the correct data for POST method.

Here is my php code with curl request:


$data = array('data' => '1');
	$curlData = '';
    foreach($data as $key=>$value){
                $curlData .= $value['attribute'] . '=' . urlencode($value['value']) . '&';

    }

	switch($methodName){
		case 'GET':
		    $curlParamName = 'CURLOPT_HTTPGET';
		    $curlParamValue = 1;
		    break;
		case 'POST':
		    $curlParamName = 'CURLOPT_POST';
		    $curlParamValue = 1;
		    break;
		case 'PUT':
		    $curlParamName = 'CURLOPT_PUT';
		    $curlParamValue = 1;
		    break;
		case 'DELETE':
		    $curlParamName = 'CURLOPT_CUSTOMREQUEST';
		    $curlParamValue = 'DELETE';
		    break;

	}


	$ch = curl_init();
	curl_setopt($ch, CURLOPT_HTTPHEADER, array('Expect:'));
	curl_setopt($ch, $curlParamName, $curlParamValue );
	curl_setopt($ch, CURLOPT_POSTFIELDS,$curlData);
	curl_setopt($ch, CURLOPT_HEADER, 0);
	curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
	curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); //Set curl to return the data instead of printing it to the browser.
	curl_setopt($ch, CURLOPT_URL, 'http://localhost/api.php');
	$data = curl_exec($ch);
	curl_close($ch);
print_r($data);

For ‘GET’, I am getting response:
Method POST
Data 1

For ‘POST’, I am getting response:
Method POST
Data 1

For ‘PUT’, I am getting response:
Method POST
Data 1

For ‘DELETE’, I am getting response:
Method POST
Data 1

Content of api.php file


<?php
echo 'Method '. $_SERVER['REQUEST_METHOD'];
echo '<br>';
echo 'Data '. $_REQUEST['data'];
die;
?>

Can someone please tell me why is the “Method = POST” for every case?

Thanks

4

Hi cancer10,

Sorry, my first reply was a bit rushed and I can see it wasn’t that helpful. I’ve made some changes to your code to get it working:


$data = array('data' => '1');
$curlData = http_build_query($data); //Handy function provided by php saves formatting the POST data yourself

$url = "http://localhost/api.php"; //I've set a variable for the URL, so we can append a query string if we want to use GET
$ch = curl_init();

switch($methodName){
    case 'GET':
        curl_setopt($ch, CURLOPT_HTTPGET, true);
        $url .= '?' . $curlData;
        $curlData = false; // See the IF check below
        break;
    case 'POST':
        curl_setopt($ch, CURLOPT_POST, true);
        break;
    case 'PUT':
        curl_setopt($ch, CURLOPT_PUT, true);
        break;
    default:
        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $method);
}

if ($curlData) {
    curl_setopt($ch, CURLOPT_POSTFIELDS, $curlData); //You don't wanna set this option if you want to make a GET request, otherwise you'll get POST
}

curl_setopt($ch, CURLOPT_HTTPHEADER, array('Expect:'));
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); //Set curl to return the data instead of printing it to the browser.
curl_setopt($ch, CURLOPT_URL, $url);
$data = curl_exec($ch);
curl_close($ch);
print_r($data);

There are some wrappers out there for curl which can simplify a lot of this stuff… this one for example: https://github.com/shuber/curl, then your request code becomes as simple as:


$response = $curl->get($url, $data);
$response = $curl->post($url, $data);
//etc.