webservices in PHP and json using codeigniter

Question

I am trying to create and use a webservice which will take input in json and provide output in same. But it is not able to provide the output correctly.

    function login() {
    $data = array(
        'login_id' => $this -> input -> post('login_id'),  
        'login_pwd' => md5($this -> input -> post('login_pwd')),

    );
    $data_string = json_encode($data);
    echo $data_string;
    $ch = curl_init(base_url().'admin_service/getUser');
    curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
    curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_HTTPHEADER, array(
       'Content-Type: application/json',
       'Content-Length: ' . strlen($data_string))
    );

    $result = curl_exec($ch);
    $httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    $contenttype = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
    curl_close($ch);

    if ($result) {
        redirect(base_url() . '/success');
    } else {
        redirect(base_url(). 'relogin'); 
        }
    }
 }

Below code is for my webservice:

   function getUser_post() {
    $name = $this->post('login_id');
    $password = $this->post('login_pwd');

    $this -> load -> model('register_model');
    // calling the function in our login model
    $result = $this -> register_model -> get_user($name, $password);

    echo $result;
    return json_encode( array('result' => $result ) );

}

Problem is: I am not gettign proper json response back in controller. All I am gettting is 1.

I want to get additional information back from webservice. How can I send it back from webservice here.

Any help appreciated. Thank you.

Solution 1

This should do it. You need to echo the json_encode result back, not the $result which is probably a boolean.

function getUser_post() {
    $name = $this->post('login_id');
    $password = $this->post('login_pwd');

    $this -> load -> model('register_model');
    // calling the function in our login model
    $result = $this -> register_model -> get_user($name, $password);

    echo json_encode( array('result' => $result ) );
    return $result;

}

Solution 2

This CI rest server is quite nice and works in most cases: https://github.com/philsturgeon/codeigniter-restserver You'll have to adapt your code, but maybe this will help you nevertheless. I can definitely recommend it!