Cakephp 3 How to make session array ?

Cakephp 3 How to make a session array ?

To write variable in Session in CakePHP 3 you need to write following code :

$this->request->session()->write('Your Key',Your_array);

To know more information you can visit here :

http://book.cakephp.org/3.0/en/development/sessions.html

To make things perfectly clear:

// code writing array to session
$a = [ "abc" => "word", "123" => 42, "?" => $b ];
$a["more"] = "if you need to add";
$a[] = "whatever";
$this->request->session()->write( 'my_array', $a );
// code reading array from session
$recall = $this->request->session()->read( 'my_array' );
debug( sprintf( "What's the word? [%s]", $recall["abc"] ) );