What is the output of the following code? class Test { public function __call($name, $args) {
call_user_func_array(array(‘static’, “test$name”), $args); } public function testS($l) { echo
“$l,”; } } class Test2 extends Test { public function testS($l) { echo “$l,$l,”; } } $test = new
Test2(); $test->S(‘A’);
A.
A,
B.
A,A,
C.
A,A,A,
D.
PHP Warning: call_user_func_array() expects parameter 1 to be a valid callback