PHP TUTORIALS

<? php
$variable1 = 2;
$variable2 = 9;
$variable3 = $varilable1 + $variable2;
echo $variable3;
?>

the above code results in following 11
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<? php
$variable1 = 2;
$variable2 = 9;
$variable3 = $varilable1 + $variable2;
echo $variable1."+".$variable2."=".$variable3;
?>
Both of the above code examples result in 2+9 = 11