php - Dealing with url request in CodeIgniter -


i started learning codeigniter , must pretty easy have problem dealing wrong urls, example:

if have anchor tag http://example.com/info/2 in controller if have 

public function info( $x ) {    $data['body'] = "personal_info";    $data['details'] = $this->person_model->get_detail( $x );    $this->load->view('view', $data); }

the controller grabs links 

segment (3)

and grab details of id database. instance if user manually edit link on browser , change 

segment(3)

to lets 7 , there no id in database 4.

how handle such problem? beginner please pardon me

you use empty method check if there data , if not redirect away page.

public function info( $x )  {     $details = $this->person_model->get_detail( $x );     if(empty($details))         redirect('other/url');      $data['body'] = "personal_info";     $data['details'] = details;     $this->load->view('view', $data); }

this way doesn't throw errors , potentially attempt display doesn't exist.


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