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Exam 200-550 topic 1 question 28 discussion

Actual exam question from Zend's 200-550
Question #: 28
Topic #: 1
[All 200-550 Questions]

Which line of code can be used to replace the INSERT comment in order to output "hello"? class C { public $ello = 'ello'; public $c; public $m; function __construct($y) {
$this->c = static function($f) {
// INSERT LINE OF CODE HERE
};
$this->m = function() {
return "h";
};
}
}
$x = new C("h");
$f = $x->c;
echo $f($x->m);

  • A. return $this->m() . "ello";
  • B. return $f() . "ello";
  • C. return "h". $this->ello;
  • D. return $y . "ello";
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Suggested Answer: B 🗳️
by ZhukovPeter at Jan. 5, 2020, 10:04 a.m.

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ZhukovPeter
4 years, 10 months ago
class C { public $ello = 'ello'; public $c; public $m; function __construct($y) { $this->c = static function ($f) { return $f() . "ello"; }; $this->m = function () { return "h"; }; } } $x = new C("h"); $f = $x->c; echo $f($x->m);
upvoted 3 times
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