<?php

// ALGORITHME

function max2($a, $b) {
	if ($a > $b) {
		return $a;
	} else {
		return $b;
	}
}

// TESTS

echo max2(2, 5)."\n";
echo max2(-2, -5)."\n";
echo max2(2.1, 2.5)."\n";
echo max2("bar", "foo")."\n";