最近看了看memcached 緩存 mysql，經過一段時間的研究·把自己測試方法寫出來，給像我一樣的初學者用~

我的環境是?nginx?+ php-fpm + apc + mysql

編譯安裝memcached

tar zxvf memcached-1.4.0.tar.gz

cd memcached-1.4.0

./configure --prefix=/usr

make

make install

啟動memcached

memcached -d -m 64 -u root -l 192.168.6.191 -p 11211 -c 64 -P /tmp/memcached.pid

/usr/local/mysql/bin/mysql -uroot -p

創建一個測試數據庫 mydb

create database mydb;

創建一個空的數據表 personal_info

CREATE TABLE `personal_info` (

`pi_id` bigint(20) NOT NULL auto_increment,

`pi_name` varchar(50) NOT NULL,

`pi_tel` varchar(15)?default?NULL,

`pi_qq` varchar(15)?default?NULL,

`pi_email` varchar(50)?default?NULL,

PRIMARY KEY (`pi_id`)

) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=4 ;

給表插入數據

INSERT INTO `mydb`.`personal_info` (

`pi_id` ,

`pi_name` ,

`pi_tel` ,

`pi_qq` ,

`pi_email`

)

VALUES (

'1', 'eric', '13611031222', '55555555', 'eric@nginxs.com'

);

創建一個 php 文件 mysql-memcache.php

$memcachehost = '192.168.6.191';

$memcacheport = 11211;

$memcachelife = 60;

$memcache =?new?Memcache;

$memcache->connect($memcachehost,$memcacheport) or die ("Could not connect");

$query="select * from personal_info limit 10";

$key=md5($query);

if(!$memcache->get($key))

{

$conn=mysql_connect("localhost","root","passwd");

mysql_select_db(mydb);

$result=mysql_query($query);

while?($row=mysql_fetch_assoc($result))

{

$arr[]=$row;

}

$f = 'mysql';

$memcache->add($key,serialize($arr),0,30);????????//mysql 查詢后，插入 memcached

$data = $arr ;

}

else{

$f = 'memcache';

$data_mem=$memcache->get($key);

$data = unserialize($data_mem);

}

echo $f;

echo?"
";

//print_r($data);

foreach($data as $a)

{

echo?"number is $a[pi_id]";

echo?"
";

echo?"name is $a[pi_name]";

echo?"
";

echo?"tel is $a[pi_tel]";

echo?"
";

echo?"qq is $a[pi_qq]";

echo?"
";

echo?"email is $a[pi_email]";

echo?"
";

}

?>

總結

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