9′M

function findexts ($filename)
{
$filename = strtolower($filename) ;
$exts = split(”[/\\.]“, $filename) ;
$n = count($exts)-1;
$exts = $exts[$n];
return $exts;
}

PHP

using System;

using System.Diagnostics;

class Foo { }

static class Program

{

static void Main()

{

Type type = typeof(Foo);

const int count = 5000000;         GC.Collect(GC.MaxGeneration, GCCollectionMode.Forced);

RunTestWithActivator(type, count);         GC.Collect(GC.MaxGeneration, GCCollectionMode.Forced);

typeof(Program).GetMethod(“RunTestWithGenerics”).

MakeGenericMethod(type).Invoke(null, new object[] { count });

}

public static void RunTestWithActivator(Type type, int count)

{

Stopwatch watch = Stopwatch.StartNew();

for (int i = 0; i < count; i++)

{

object obj = Activator.CreateInstance(type);

}

watch.Stop();

Console.WriteLine(“With Activator: {0}”, watch.ElapsedMilliseconds);

}

public static void RunTestWithGenerics<T>(int count) where T : new() {

Stopwatch watch = Stopwatch.StartNew();

for (int i = 0; i < count; i++)

{

T t = new T();

}

watch.Stop();

Console.WriteLine(“With generics: {0}”, watch.ElapsedMilliseconds);

}

} 

C#