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200-710 · Question #109
200-710 Question #109: Real Exam Question with Answer & Explanation
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Question
What is the output of the following code?
class A {
public $a = 1;
public function __construct($a) { $this->a = $a; }
public function mul() {
return function ($x) {
return $this->a*$x;
};
}
}
$a = new A(2);
$a_mul = $a->mul();
$m = $a->mul();
echo $m(3);
Options
- A9
- B6
- C0
- D3
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