PHP使用memcache缓存技术提高响应速度的方法_php技巧
本文实例讲述了PHP使用memcache缓存技术提高响应速度的方法。分享给大家供大家参考。具体分析如下:
php虽然己经做到很好很快了,但是如果大数据量时还是会有些卡了,这里介绍一下PHP中使用memcache缓存技术提高响应速度方法,有需要了解的朋友可参考.
memcache既可以在linux下使用,也可以在windows系统下使用,当然首推linux系统,至于如何安装memcache,google一下就什么都出来了.
下面贴一段memcache的使用例子,代码如下:
<?php //连接 $mem = new Memcache; $mem->connect("127.0.0.1", 11211) or die ("Could not connect"); //显示版本 $version = $mem->getVersion(); echo "Memcached Server version: ".$version."<br>"; //保存数据 $mem->set('key1', 'This is first value', 0, 60); $val = $mem->get('key1'); echo "Get key1 value: " . $val ."<br>"; //替换数据 $mem->replace('key1', 'This is replace value', 0, 60); $val = $mem->get('key1'); echo "Get key1 value: " . $val . "<br>"; //保存数组 $arr = array('aaa', 'bbb', 'ccc', 'ddd'); $mem->set('key2', $arr, 0, 60); $val2 = $mem->get('key2'); echo "Get key2 value: "; print_r($val2); echo "<br>"; //删除数据 $mem->delete('key1'); $val = $mem->get('key1'); echo "Get key1 value: " . $val . "<br>"; //清除所有数据 $mem->flush(); $val2 = $mem->get('key2'); echo "Get key2 value: "; print_r($val2); echo "<br>"; //关闭连接 $mem->close(); ?>
例子2,代码如下:
<?php //使用memcache缓存 $mc = memcache_connect('localhost', 11211); $pn = $mc->get('pid'); echo $pn; if($pn<1) $pn = 1; else $pn++; $mc->set('pid',$pn,0,0); //设置永不过期 memcache_close($mc); ?>

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