How to redirect url after form submit in codeigniter - codeigniter

Question

The problem is to redirect URL for submit button in Codeigniter. I want to fetch data from the database by submitting a query in the form and can't do it as there is a redirection problem.
this is a xampp server.
WELCOMe
<!-- <form action="submit.php" > -->
<form action="submit.php" id="#form" name="#form" >
<div class="row">
<div class="col-md-3">
<div class="form-group">
<label for="s_id">Student ID:</label>
<input type="int" class="form-control" id="s_id" placeholder="Student ID" name="s_id" >
</div>
<div class="form-group">
<label for="s_name">Student Name:</label>
<input type="int" class="form-control" id="s_name" placeholder="Student Name" name="s_name" >
</div>
<div class="form-group">
<label for="training">Training:</label>
<input type="int" class="form-control" id="training" placeholder="Training" name="training" >
</div>
<div class="form-group">
<label for="phone">Phone:</label>
<input type="int" class="form-control" id="phone" placeholder="Phone" name="phone" >
</div>
</div>
</div>
<div class="row">
<div class="col-md-3">
<!-- <input type="submit" calss="form-control btn btn-success" value="Search" name="submitbtn"> -->
<input id='btn' name="submitbtn" type='submit' value='Submit'>
</div>
</div>
</form>
Expected: I want to fetch data from the database by submitting a query in the form and can't do it as there is a redirection problem.
Actual:
404 Page Not Found
The page you requested was not found.

Answer 1

I think you have to use AJAX
<script>
function submitForms(){
//getting values from your form
formData = $("#Form").serialize();
$.ajax({
type:"POST",
url:"<?php echo base_url(); ?>super/user/add",
data:formData ,
success:function(data) {
//response
}
}
});
event.preventDefault();
};
</script>`
In your form
<form method="post" id="Form" name="Form" action="javascript:submitForms();">