The biggest benefit from working as a freelancer web developer that you upgrade your knowledge every single day.

Clients take this task on their hands, so your turn to use the right technology on the right side.

This benefits may be big, medium or a simple task, but at all you will be refreshed.

For this I build this blog, to share knowledge with other developers even if it wasn't much bigger, the target here to benefit someone.

Ok, let’s go back to work, in this tutorial you will learn how to come back to the previous page you have been in but before this let me explain this case to understand why you want this tutorial.

Suppose you have a multi-language website ,as an example let's say it was e-commerce website, the default language was English ,but Visitor from India want to read product specifications with Indian language without leaving the product specifications page, for this case and same cases we use redirect back.

 

How to do this ?

We use  

$_SERVER['HTTP_REFERER']

which Returns the complete URL of the current page (not reliable because not all user-agents support it) and pass it to header() to redirect to the previous page, to use it follow these steps : 

Step one put this function in your custom helper

 

if ( ! function_exists('redirect_back'))
{
    function redirect_back()
    {
        if(isset($_SERVER['HTTP_REFERER']))
        {
            header('Location: '.$_SERVER['HTTP_REFERER']);
        }
        else
        {
            header('Location: http://'.$_SERVER['SERVER_NAME']);
        }
        exit;
    }

Step two: call this function in the right place, let’s assume it will be after delete record like this example

// Crud controller

Function create()
Function Update()
Function Read()

Function Delete()
{
   $this->load->model('mod1');

   // Pass the $id to the Delete() method
   $this->crud_model->row_delete($id);


   redirect_back();  
}

Hope it will help, don’t hesitate to ask questions