I’m a new learner here. I’m having trouble to direct my page to my main page after form is being submitted. I will include my code here,

   <?php
 
        $conn = mysqli_connect("localhost", "root", "", "test");
         
        // Check connection
        if($conn === false){
            die("ERROR: Could not connect. "
                . mysqli_connect_error());
        }
         
       if (isset($_POST["submit"])) {
        $user_name =  $_REQUEST['user_name'];
        $user_email = $_REQUEST['user_email'];
        $user_password =  $_REQUEST['user_password'];
        $Age = $_REQUEST['Age'];
       
         
        
    
        $sql = "INSERT INTO info  VALUES ('$user_name', 
            '$user_email','$user_password','$Age')";
        $result = @mysqli_sql($conn,$sql);
        if($result){
            header("Location:http://localhost/Study/Study/main.html");
        }
         
    }
        mysqli_close($conn);
        ?>

I’m trying to direct user to another page after form submission. However, the page goes to the blank page instead of to the page that i intended to. Please assist me with this, Thank you in advance!