Send JSON data via POST with PHP cURLInitiate new cURL resource using curl_init(). Setup data in PHP array and encode into a JSON string using json_encode(). Attach JSON data to the POST fields using the CURLOPT_POSTFIELDS option. Set the Content-Type of request to application/json using the CURLOPT_HTTPHEADER option.
To post JSON data using Curl, you need to set the Content-Type of your request to application/json and pass the JSON data with the -d command line parameter. The JSON content type is set using the -H "Content-Type: application/json" command line parameter. JSON data is passed as a string.
To receive JSON string we can use the “php://input” along with the function file_get_contents() which helps us receive JSON data as a file and read it into a string. Later, we can use the json_decode() function to decode the JSON string.
You are POSTing the json incorrectly -- but even if it were correct, you would not be able to test using print_r($_POST)
(read why here). Instead, on your second page, you can nab the incoming request using file_get_contents("php://input")
, which will contain the POSTed json. To view the received data in a more readable format, try this:
echo '<pre>'.print_r(json_decode(file_get_contents("php://input")),1).'</pre>';
In your code, you are indicating Content-Type:application/json
, but you are not json-encoding all of the POST data -- only the value of the "customer" POST field. Instead, do something like this:
$ch = curl_init( $url );
# Setup request to send json via POST.
$payload = json_encode( array( "customer"=> $data ) );
curl_setopt( $ch, CURLOPT_POSTFIELDS, $payload );
curl_setopt( $ch, CURLOPT_HTTPHEADER, array('Content-Type:application/json'));
# Return response instead of printing.
curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
# Send request.
$result = curl_exec($ch);
curl_close($ch);
# Print response.
echo "<pre>$result</pre>";
Sidenote: You might benefit from using a third-party library instead of interfacing with the Shopify API directly yourself.
$url = 'url_to_post';
$data = array("first_name" => "First name","last_name" => "last name","email"=>"[email protected]","addresses" => array ("address1" => "some address" ,"city" => "city","country" => "CA", "first_name" => "Mother","last_name" => "Lastnameson","phone" => "555-1212", "province" => "ON", "zip" => "123 ABC" ) );
$postdata = json_encode($data);
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $postdata);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json'));
$result = curl_exec($ch);
curl_close($ch);
print_r ($result);
This code worked for me. You can try...
Replace
curl_setopt($ch, CURLOPT_POSTFIELDS, array("customer"=>$data_string));
with:
$data_string = json_encode(array("customer"=>$data));
//Send blindly the json-encoded string.
//The server, IMO, expects the body of the HTTP request to be in JSON
curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);
I dont get what you meant by "other page", I hope it is the page at: 'url_to_post'. If that page is written in PHP, the JSON you just posted above will be read in the below way:
$jsonStr = file_get_contents("php://input"); //read the HTTP body.
$json = json_decode($jsonStr);
Please try this code:-
$url = 'url_to_post';
$data = array("first_name" => "First name","last_name" => "last name","email"=>"[email protected]","addresses" => array ("address1" => "some address" ,"city" => "city","country" => "CA", "first_name" => "Mother","last_name" => "Lastnameson","phone" => "555-1212", "province" => "ON", "zip" => "123 ABC" ) );
$data_string = json_encode(array("customer" =>$data));
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type:application/json'));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$result = curl_exec($ch);
curl_close($ch);
echo "$result";
First,
always define certificates with CURLOPT_CAPATH option,
decide how your POSTed data will be transfered.
By default:
CURLOPT_SSL_VERIFYHOST == 2
which "checks the existence of a common name and also verify that it matches the hostname provided" and
CURLOPT_VERIFYPEER == true
which "verifies the peer's certificate".
So, all you have to do is:
const CAINFO = SERVER_ROOT . '/registry/cacert.pem';
...
\curl_setopt($ch, CURLOPT_CAINFO, self::CAINFO);
taken from a working class where SERVER_ROOT
is a constant defined during application bootstraping like in a custom classloader, another class etc.
Forget things like \curl_setopt($handler, CURLOPT_SSL_VERIFYHOST, 0);
or \curl_setopt($handler, CURLOPT_SSL_VERIFYPEER, 0);
.
Find cacert.pem
there as seen in this question.
There are actually 2 modes when posting data:
the data is transfered with Content-Type
header set to multipart/form-data
or,
the data is a urlencoded string with application/x-www-form-urlencoded
encoding.
In the first case you pass an array while in the second you pass a urlencoded string.
multipart/form-data
ex.:$fields = array('a' => 'sth', 'b' => 'else');
$ch = \curl_init();
\curl_setopt($ch, CURLOPT_POST, 1);
\curl_setopt($ch, CURLOPT_POSTFIELDS, $fields);
application/x-www-form-urlencoded
ex.:$fields = array('a' => 'sth', 'b' => 'else');
$ch = \curl_init();
\curl_setopt($ch, CURLOPT_POST, 1);
\curl_setopt($ch, CURLOPT_POSTFIELDS, \http_build_query($fields));
http_build_query
:Test it at your command line as
user@group:$ php -a
php > $fields = array('a' => 'sth', 'b' => 'else');
php > echo \http_build_query($fields);
a=sth&b=else
The other end of the POST request will define the appropriate mode of connection.
Try like this:
$url = 'url_to_post';
// this is only part of the data you need to sen
$customer_data = array("first_name" => "First name","last_name" => "last name","email"=>"[email protected]","addresses" => array ("address1" => "some address" ,"city" => "city","country" => "CA", "first_name" => "Mother","last_name" => "Lastnameson","phone" => "555-1212", "province" => "ON", "zip" => "123 ABC" ) );
// As per your API, the customer data should be structured this way
$data = array("customer" => $customer_data);
// And then encoded as a json string
$data_string = json_encode($data);
$ch=curl_init($url);
curl_setopt_array($ch, array(
CURLOPT_POST => true,
CURLOPT_POSTFIELDS => $data_string,
CURLOPT_HEADER => true,
CURLOPT_HTTPHEADER => array('Content-Type:application/json', 'Content-Length: ' . strlen($data_string)))
));
$result = curl_exec($ch);
curl_close($ch);
The key thing you've forgotten was to json_encode your data. But you also may find it convenient to use curl_setopt_array to set all curl options at once by passing an array.
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