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200-710 · Question #91
200-710 Question #91: Real Exam Question with Answer & Explanation
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Question
What is the output of the following code?
function fibonacci (&$x1 = 0, &$x2 = 1)
{
$result = $x1 + $x2;
$x1 = $x2;
$x2 = $result;
return $result;
}
for ($i = 0; $i < 10; $i++) {
echo fibonacci() . ' , ';
}
Options
- AAn error
- B1,1,1,1,1,1,1,1,1
- C1,1,2,3,5,8,13,21,34,55
- DNothing
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