$this->post codeigniter 不适用于其余 api

我尝试与$this->post()获取以 json 格式通过 post 发送的数据。例如，我无法得到任何结果$this->post('name').

这是代码：

<?php

require(APPPATH . '/libraries/REST_Controller.php');

class user_api extends REST_Controller {

    function user_post() {

                $user = array(
                    'id' => null,
                    'firstname' => $this->post('firstname'),
                    'lastname' => $this->post('lastname')
                );

                $result = $this->user_model->insert($user);
                if ($result) {
                    $this->response($result, 200); // 200 being the HTTP response code
                } else {
                    $this->response(NULL, 404);
                }
    }

}

?>

数据以 json 格式发送到链接：http://mydomain.com/myapplication/user_api/user http://mydomain.com/myapplication/user_api/user :

{"firstname":"test",
"lastname":"test"
}

数据库中没有数据，无法从中获取数据$this->post('firstname').

任何想法 ？？？？

你无法通过 post 方法获取 json 数据，你必须像这样使用

require(APPPATH . '/libraries/REST_Controller.php');

class user_api extends REST_Controller {

    function user_post() {

       $params = json_decode(file_get_contents('php://input'), TRUE);

        $user = array(
            'id' => null,
            'firstname' => $params['firstname'],
            'lastname' => $params['lastname']
        );

        $result = $this->user_model->insert($user);
        if ($result) {
            $this->response($result, 200); // 200 being the HTTP response code
        } else {
            $this->response(NULL, 404);
        }
    }

}