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200-710 · Question #108
200-710 Question #108: 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 B, 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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