How to pass global variable inside php static function

Question

I am trying to pass variable on php static function. I tried this code but variable value not passed on static function. Here is my code

 $ses1=$_SESSION['new']['user'];
    static function simple ( $request, $conn, $table, $primaryKey, $columns )
    {
        $bindings = array();
        $db = self::db( $conn );
        $limit = self::limit( $request, $columns );
        $order = self::order( $request, $columns );
        $where = self::filter( $request, $columns, $bindings );
        $data = self::sql_exec( $db, $bindings,
            "SELECT ".implode(", ", self::pluck($columns, 'db'))."
             FROM $table where user = '$ses1'
             $where
             $order
             $limit"
        );
        $resFilterLength = self::sql_exec( $db, $bindings,
            "SELECT COUNT({$primaryKey})
             FROM   $table where user = '$ses1'
             $where"
        );
        $recordsFiltered = $resFilterLength[0][0];
        $resTotalLength = self::sql_exec( $db,
            "SELECT COUNT({$primaryKey})
             FROM   $table where user = '$ses1'"
        );
        $recordsTotal = $resTotalLength[0][0];

Answer 1

you can call it with global

static function simple ( $request, $conn, $table, $primaryKey, $columns )
{
    global $ses1;
    echo $ses1;
...