无法登录PDO

Question

I couldn't find any solution, I can't login.It shows {"success":0,"message":"Login Failure"} which is fail. Can I know what is the problem with the code? Your help is much appreciated.

login.php

<?php

require("config.php");

if(!empty($_POST)){


    $query = "SELECT * FROM lecturer WHERE lecID = :lecID";

    $query_params=array(':lecID'=> $_POST['lecID']);

    try{
        $stmt=$db->prepare($query);
        $result=$stmt->execute($query_params);

    }catch(PDOException $ex){
        $response["success"]=0;
        $response["message"]="Database Error1. Please try again";
        die(json_encode($response));
        }

        $validate_info=false;
        //fetching rows from query
            $row = $stmt->fetch();

        if ($row){
            if($_POST['lecPass'] === $row['lecPass']){
                $login_ok==true;

            }

        }
        if($login_ok){
            //userLogin
            $response['success']=1;
            $response['message']="Login Successful";
            die(json_encode($response));

        }else{
            $response["success"]=0;
                $response["message"]= "Login Failure";
                die(json_encode($response));
        }
    }

    }

Answer 1

you need to use = Assignment operator instead of comparison operator ==

$login_ok==true;

Change to

$login_ok=true;