What is the output of the following code? function increment (&$val) { return $val + 1; } $a = 1; echo increment ($a); echo increment ($a);

The correct answer is A. 22. See the full explanation below for the reasoning.

Functions

Question

What is the output of the following code?
function increment (&$val)
{
return $val + 1;
}
$a = 1;
echo increment ($a);
echo increment ($a);

(23 responses)

#pass by reference#return value#function output

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