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How would I write this PHP function so CI can be recognized? - El Forum - 01-03-2012

[eluser]qpixo[/eluser]
I have this URL: http://www.example.com/name/pageID


I want to store pageID into session assuming it's $this->uri->segment(2);
CI doesn't recognize _GET

How would I write this function so CI can recognize the syntax?



Code:
function checkPageID() {
    // check count to see if there are fresh variables being passed to the script
    // if there are, we overwrite any existing page variables in the session
    if ( count ( $_GET ) ) {
        $_SESSION['__get'][$_SERVER['PHP_SELF']] = $_GET;
        header( 'Location: http://' . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF'] );
        exit();
    } elseif (
        array_key_exists( '__get', $_SESSION ) &&
        array_key_exists( $_SERVER['PHP_SELF'], $_SESSION['__get'] ) &&
        count( $_SESSION['__get'][$_SERVER['PHP_SELF']] )) {
        $_GET = $_SESSION['__get'][$_SERVER['PHP_SELF']];
    }
}