$first_name = "John"; $last_name = "Doe"; echo "Welcome $first_name $last_name to our website
"; echo "Welcome {$first_name} {$last_name} to our website
"; echo 'Welcome $first_name $last_name to our website
'; echo 'Welcome '. $first_name .' '. $last_name .' to our website
'; $a = 10; $b = 15; echo 'Multiplication of $a and $b is :', $a * $b;