在CodeIgniter中验证count_all_results = 1

Question

I'm trying to accomplish getting the current users session (if it exists) then comparing it to the database, along with a loggedIn value = 1 (meaning loggedIn) and count that a single row exists matching this where clause. If that exists, show logged in, else, show login form (shown in if{} else{} below)

I have a model with a function:

function check_if_loggedin(){
    #get user session id from db.
        $sess = $this->session->userdata('session_id');
    #set numerical value of successfully logged in equal 1
        $loggedInSetSuccess = 1;
    #compare session id to match in db (can only have only 1 match)
        $sessionsDbCompare = $this->db->get_where('Client',array('session_id'=>$sess,'loggedIn'=>$loggedInSetSuccess));

    if($sessionsDbCompare->count_all_results() = 1) {
    # User has valid session(valid sessID+loggedIn=0, show welcome
        echo 'Logged in baby';
        # show account pref   
    }
    else{
      # user doesnt have both a valid session and loggedIn is set to 0, show login form
      echo 'login form here';
    }  
}

The problem is - if($sessionsDbCompare->count_all_results() = 1) { my IDe is warning me, should I be using count_all_results() == 1 or count_all_results() === 1 . Sorry this is slightly newbie, I guess I'm a little confused because count_all_results() is a function. (I do understand comparison operators like "1" == "01")

Answer 1

You should use == so the if statement would look like:

if($sessionsDbCompare->count_all_results() == 1) { ... 

You can always use var_dump($sessionsDbCompare->count_all_results()); or similar to check the value returned...

Answer 2

You should be using this

count_all_results() == 1

The way you have it is assigning 1 to what is left of it

The IDE is also worried that count_all_results() might return false and 0. That's why it is suggesting the three === but dont worry about that. The two equals will fix it

Answer 3

This line:

if($sessionsDbCompare->count_all_results() = 1) {

Should be:

if($sessionsDbCompare->count_all_results() == 1) {

Answer 4

您应该使用$ this-> db-> count_all（）而不是$ this-> db-> count_all_results（）