gistfile1.txt

<?php
interface Foo {
            public function foo();
            public function foo1($a);
            public function foo2($b, $c = NULL);
            public function foo3($e, $c = NULL);
            public function foo4(array $f);
}

class Bar {
            public function foo() {}
            public function foo1($a) {}
            public function foo2($b, $c = NULL) {}
            public function foo3($e, $c = NULL) {}
            public function foo4(array $f) {}
}
class Bar1 {
            public function foo() {}
            public function foo1($a) {}
            public function foo2($b, $c = NULL) {}
            public function foo3($e, $c = NULL) {}
            public function foo4(array $f) {}
}
class Bar2 {
            public function foo() {}
            public function foo1($a) {}
            public function foo2($b, $c = NULL) {}
            public function foo3($e, $c = NULL) {}
            public function foo4(array $f) {}
}

class Baz implements Foo {
            public function foo() {}
            public function foo1($a) {}
            public function foo2($b, $c = NULL) {}
            public function foo3($e, $c = NULL) {}
            public function foo4(array $f) {}
}
class Baz1 implements Foo {
            public function foo() {}
            public function foo1($a) {}
            public function foo2($b, $c = NULL) {}
            public function foo3($e, $c = NULL) {}
            public function foo4(array $f) {}
}
class Baz2 implements Foo {
            public function foo() {}
            public function foo1($a) {}
            public function foo2($b, $c = NULL) {}
            public function foo3($e, $c = NULL) {}
            public function foo4(array $f) {}
}

function benchmark($func, $times, $arg) {
            $s = microtime(true);
                    for ($i = 0; $i < $times; $i++) {
                                        $func($arg);
                                                }
                    $e = microtime(true);
                    return $e - $s;
}
$times = 1000000;
$interface = 0;
$interface += benchmark(function(Foo $foo) {}, $times, new Baz);
$interface += benchmark(function(Foo $foo) {}, $times, new Baz1);
$interface += benchmark(function(Foo $foo) {}, $times, new Baz2);
echo "Interface in $interface seconds, " . ($interface / ($times * 3)) . " seconds per run\n";
$structural = 0;
$structural += benchmark(function(<Foo> $foo) {}, $times, new Bar);
$structural += benchmark(function(<Foo> $foo) {}, $times, new Bar1);
$structural += benchmark(function(<Foo> $foo) {}, $times, new Bar2);
echo "Structural in $structural seconds, " . ($structural / ($times * 3)) . " seconds per run\n";
$native = 0;
$native += benchmark(function($foo) {}, $times, new Bar);
$native += benchmark(function($foo) {}, $times, new Bar1);
$native += benchmark(function($foo) {}, $times, new Bar2);
echo "Native in $native seconds, " . ($native / ($times * 3)) . " seconds per run\n";
?>