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200-550 · Question #65
200-550 Question #65: Real Exam Question with Answer & Explanation
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Question
What is the output of the following code? class a { public $val; } function renderVal (a $a) { if ($a) { echo $a->val; } } renderVal (null);
Options
- AA syntax error in the function declaration line
- BAn error, because null is not an instance of 'a'
- CNothing, because a null value is being passed to renderVal()
- DNULL
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