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<?php
$a =1+1;
echo "1+1=".$a;
?>
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<?php
$b =1;
$c =1;
$d =$b +$c;
echo "1+1=".$d;
?>
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<?php
function add($x,$y)
{
$total = $x + $y;
return $total;
}
echo "1+1=" . add(1,1);
?>
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