memcached +mysql+php 例子

<?php
header("content-type:text/html;charset=utf-8");
$memcachehost = ‘127.0.0.1‘;
$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 查询后，插入 memcached
                $data = $arr ;
}
else{
        $f = ‘memcache‘;
        $data_mem=$memcache->get($key);
        $data = unserialize($data_mem);
}
echo $f;
echo "<br>";
//print_r($data);
foreach($data as $a)
{
                echo "number is <b><font color=#FF0000>$a[pi_id]</font></b>";
                echo "<br>";
                echo "name is <b><font color=#FF0000>$a[pi_name]</font></b>";
                echo "<br>";
                echo "tel is <b><font color=#FF0000>$a[pi_tel]</font></b>";
                echo "<br>";
                echo "qq is <b><font color=#FF0000>$a[pi_qq]</font></b>";
                echo "<br>";
                echo "email is <b><font color=#FF0000>$a[pi_email]</font></b>";
                echo "<br>"; 

}
?>