'.$contents.'

'); } echo(''); outp('Sum of 1..5 = '.sum(identity, 1, increment, 5)); outp('Sum of 1"OOPS"5 = '.sum("identity", 1, "OOPS", 5)); outp('Ahem'); outp('Sum of increment(1, 3, 5) = '.sum("increment", 1, create_function('$x', 'return ($x + 2);'), 5)); echo(''); ?>