Home>IT Tests>Questions>Even if the inclusion of a file supports the 'return' instruction, you have to be careful with the parentheses.
Question from the PHP5 test
Even if the inclusion of a file supports the 'return' instruction, you have to be careful with the parentheses.
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Author: Mathieu RobinStatus: PublishedQuestion passed 66 times
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What is the output of the following code?
```
$a = 1;
$b = 2;
$c = $a + $b;
$d = $a - $b;
echo $c;
echo $d;
```