Approximate line number 62 in main.php:

$sessions = new $this->driver($this->db);


1) Is driver() any method? where is it defined?

2)new $this->driver -- i cannot make anything out of it . What is the explanation from the programming view ?



I am using custom installation

Thanks in advance

driver is a variable defined in the arg.php file. we use it to call the constructor.
the code there creates a new object of the custom/selected driver class.

$sessions = new $this->driver($this->db);

if driver is a variable defined in arg.php, how could it take an argument i.e. $this->db ?

Explanation of the syntax please

we use the concept called dynamic binding.
when the PHP parser finds the below code.

$sessions = new $this->driver($this->db);

$sessions = new Custom($this->db);