arguments

Can a PHP function accept an unlimited number of parameters? [duplicate]

In PHP, use the function func_get_args to get all passed arguments. <?php function myfunc(){ $args = func_get_args(); foreach ($args as $arg) echo $arg.”/n”; } myfunc(‘hello’, ‘world’, ‘.’); ?> An alternative is to pass an array of variables to your function, so you don’t have to work with things like $arg[2]; and instead can use $args[‘myvar’]; … Read more

How do methods use hash arguments in Ruby?

Example: def foo(regular, hash={}) puts “regular: #{regular}” puts “hash: #{hash}” puts “a: #{hash[:a]}” puts “b: #{hash[:b]}” end foo(“regular argument”, a: 12, :b => 13) I use hash={} to specify that the last argument is a hash, with default value of empty hash. Now, when I write: foo(“regular argument”, a: 12, :b => 13) It’s actually … Read more

Singleton with parameters

Singleton is ugly but… public class Singleton { private static Singleton _instance = null; private static Object _mutex = new Object(); private Singleton(object arg1, object arg2) { // whatever } public static Singleton GetInstance(object arg1, object arg2) { if (_instance == null) { lock (_mutex) // now I can claim some form of thread safety… … Read more