$cost = 1.22;
$limit = 1.00;
function check_limit($total_cost, $credit_limit) {
if ($total_cost > $credit_limit) :
return 0;
endif;
return 1;
}
if (check_limit($cost, $limit)):
print "OK";
else :
print "Balance less than $".$limit."!";
endif;
?>