What will be the output of the following PHP code ?
<?php $color1 = red;
$color2 = red;
echo $color1 + $color2;
?>
$color2 = red;
echo $color1 + $color2;
?>
redgreen
red green
0
1
<?php $color1 = red;
$color2 = red;
echo $color1 + $color2;
?>
redgreen
red green
0
1