gistfile1.php

<?php


define('N', 1000);

class Redis
{
    public function run($n)
    {
        $a = rand($n, 2 * $n);
    }
}

class A
{
    protected $redis;

    function __construct()
    {
        $this->redis = new Redis();
    }


    function getRedis()
    {
        return $this->redis;
    }

    function run()
    {
        for ($i = 0; $i < N; $i++) {
            $this->getRedis()->run($i);
        }
    }
}


class B
{
    protected $redis;

    function __construct()
    {
        $this->redis = new Redis();
    }


    function run()
    {
        for ($i = 0; $i < N; $i++) {
            $this->redis->run($i);
        }
    }
}


$time = microtime(true);

$a = new A();
$a->run();

$et1 = microtime(true) - $time;

print 'Execution time with *property* accessor: ' . $et1 . PHP_EOL;


$time = microtime(true);

$b = new B();
$b->run();

$et2 = microtime(true) - $time;

print 'Execution time *without* property accessor: ' . $et2 . PHP_EOL;


print 'Ratio: ' . ($et1 / $et2) . PHP_EOL;