<?php

class cache
{
	public $connect = 0;

	function __construct()
	{
		$this->_instance();
	}
	
	protected function _instance()
	{
		static $_instance;

		if(empty($_instance))
			$_instance = $this->connect();
		return $_instance;
	}
	
	function connect()
	{
		$this->db = new redis();
		$this->db->connect('127.0.0.1', '6379');
	
		$this->connect ++;
		return $this;
	}

	function __call($method, $args)
	{
		return call_user_func_array(array($this->db, $method) , $args);
	}
}

$redis = new cache();
$key_pre = time();
echo "pre : $key_pre\n";

//测试百万次循环
$s = microtime(true);
while($total < 1000000)
{
	$total++;
}
$e = microtime(true);
printf("1 000 000 loop cost %4f\n", $e-$s);

//测试百万次写入
$total = 0;
$s = microtime(true);
while($total <= 1000000)
{
	$redis->set("$key_pre:{$total}", $total);
	$total++;
}
$e = microtime(true);
printf("1 000 000 set cost %4f, lastkey: %s\n", $e-$s, "$key_pre:{$total}");

//测试百万次读取
$total = 0;
$s = microtime(true);
while($total <= 1000000)
{
	$redis->get( "$key_pre:{$total}" );
	$total++;
}
$e = microtime(true);
printf("1 000 000 get cost %4f, lastkey: %s\n", $e-$s, "$key_pre:{$total}");

//测试百万级 key 查找
$total = 0;
$s = microtime(true);
$redis->keys("$key_pre:*");
$e = microtime(true);
printf("1 000 000 key find cost %4f\n", $e-$s);