How to get the request data in codeigniter?

@denis 

In CodeIgniter, you can access request data using the input class. You can use the following methods to access request data:

1. Retrieve a single input value:

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$data = $this->input->post('input_field_name');

1. Retrieve all input values as an array:

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$data = $this->input->post();

1. Check if a specific input value exists:

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if ($this->input->post('input_field_name')) {
    // Input field exists
} else {
    // Input field does not exist
}

1. Retrieve input data from other request methods such as GET, COOKIE, SERVER, etc.:

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$data = $this->input->get('input_field_name');
$data = $this->input->cookie('cookie_name');
$data = $this->input->server('server_variable');

Make sure to load the input class in your controller before using any of the above methods:

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$this->load->library('input');

By using these methods, you can easily retrieve and work with request data in your CodeIgniter application.