In the following code, which line should be changed so it outputs the number 2:
```php
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());
```

Question

In the following code, which line should be changed so it outputs the number 2:
```php
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());
```

Accepted Answer

C. Line B, to: public function &getX() {

Answer

A. No changes needed, the code would output 2 as is

Answer

B. Line B, to: protected &x; array();

Answer

D. Line C, to: return &$this->x;

Answer

E. Line D, to: $a = &$new A();

In the following code, which line should be changed so it outputs the number 2: ``php class A { protected $x = array(); / A. / public function getX() { / B. / return $this->x; / C. / } } $a = new A();

Question

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