how to set a session variable when a link is clicked?

Question

I have created a search block. It outputs multiple results (names) as links. User can follow the link. How can I pass the user name into $_SESSION variable?

I tried doing this, result shows page not found error.

 'name' => l(t($n['name']),'edit_details',array('query' => array('uid' => $n['uid'])))

in the hook_menu I gave

$items['edit_details/%'] = array();

i have passed the value into session variable using this

$_SESSION['id'] = $_GET['uid'];

Answer 1

You can do like this.

Link URL :

 'name' => l(t($n['name']),'edit_details/@uid', array('@uid' => $n['uid']))

In hook_menu() :

$items['edit_details/%user'] = array(
    'title'          => 'Lets start',
    'page callback'   => '_get_user',
    'page arguments'  => array(1),
    'access callback' => TRUE,
    'type'            => MENU_CALLBACK,
  );

In callback : In callback function you will get complete user object, as this wild card used for user core module.

function _get_user($user) {
  $_SESSION['user_name'] = $user->name;
  //Redirect to any other page you want.
}

Thanks!