function createShipment($params) {
    try {
        $json_params = json_encode($params);
        $url = 'https://qikink.com/erp2/index.php/api/createOrder';
//open connection
        $ch = curl_init();
//set the url, number of POST vars, POST data
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $json_params);
        curl_setopt($ch, CURLOPT_HTTPHEADER,
                array('Content-Type:application/json'));
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
//execute post
        $result = curl_exec($ch);
        $result = json_decode($result, true);
//close connection
        curl_close($ch);
       
       if($result->code==1):
           // Order added Successfully do your stuff here
       else:
           // order not added. 
           throw new Exception($result->msg,$result->code);
       endif;
       
    } catch (\Exception $e) {
        echo $e;
    }
}

$params = array(
    'auth_token' => 'YOUR-QIKINK-AUTH-TOKEN',
    'order_number' => '445AB',
    'qikink_shipping' => 0,
    'gateway' => 'online',
    'total_order_value' => 556,
    'line_items' => array(array(
            'search_from_my_products' => 0,
            'price' => 440,
            'quantity' => 1,
            'sku' => 'Mrnhs-Bk-L',
            'designs' => array(array(
                    'design_code' => 'TY113',
                    'width_inches' => 1.4,
                    'height_inches' => 2.9,
                    'placement_sku' => "fr",
                    'design_link' => "https://qikink.com/assets/1.png",
                    'mockup_link' => "https://qikink.com/assets/2.png",
                ))
        )
    )
);
echo createShipment($params);

                                    
{
code:1,
order_id:2234,
msg:"Successfully created order"
}