Throw another Exception during already throwing one

Как отрабатывает php код, когда мы бросаем исключение, создавая объект throwable, в момент создания которого мы бросаем ещё одно исключение.

Пример кода

File: index.php

<?php

class A extends Exception
{
	public function __construct()
	{
		try
		{
			echo "Instance of class A created\n";
			throw new B();
			echo "Some B class code executed";
		}
		catch(B $b)
		{
			echo "Cought object of B class\n";
		}
		
	}
	
	
}


class B extends Exception
{
	public function __construct()
	{
		echo "Instance of class B created\n";
		
	}
}


///////////////////////////////////////////////////////////


try
{
	echo "Programm started\n";
	throw new A();
	echo "Programm execution continues\n";
	
}
catch(A $a)
{
	echo "Cought object of A class\n";
}

<?php

class A extends Exception { public function __construct() { try { echo "Instance of class A created\n"; throw new B(); echo "Some B class code executed"; } catch(B $b) { echo "Cought object of B class\n"; }

}

}

class B extends Exception { public function __construct() { echo "Instance of class B created\n";

} }

///////////////////////////////////////////////////////////

try { echo "Programm started\n"; throw new A(); echo "Programm execution continues\n";

} catch(A $a) { echo "Cought object of A class\n"; }