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200-550 · Question #84
200-550 Question #84: Real Exam Question with Answer & Explanation
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Question
In the following code, which line should be changed so it outputs the number 2: class A { protected $x = array(); /* A / public function getX() { / B / return $this->x; / C / } } $a = new A(); / D */ array_push($a->getX(), "one"); array_push($a->getX(), "two"); echo count($a->getX());
Options
- ANo changes needed, the code would output 2 as is
- BLine A, to: protected &$x = array();
- CLine B, to: public function &getX() {
- DLine C, to: return &$this->x;
- ELine D, to: $a =& new A();
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