php memcached mysql开发详细实例

CODE:
#include
#include
#include

int
daemon(nochdir, noclose)
    int nochdir, noclose;
{
    int fd;

    switch (fork()) {
    case -1:
        return (-1);
    case 0:
        break; 
    default:
        _exit(0);
    }

    if (setsid() == -1)
        return (-1);

    if (!nochdir)
        (void)chdir(”/”);

    if (!noclose && (fd = open(”/dev/null”, O_RDWR, 0)) != -1) {
        (void)dup2(fd, STDIN_FILENO);
        (void)dup2(fd, STDOUT_FILENO);
        (void)dup2(fd, STDERR_FILENO);
        if (fd > STDERR_FILENO)
            (void)close(fd);
    }
    return (0);
}

class Mysql
{
private $mysqlmaster;
private $myssqlslave;
private static $auid=0;
public function __construct(){
require 'config.php';
$msg = $mysql;

$this->mysqlmaster = new mysqli($msg['master'][0],$msg['master'][1],$msg['master'][2],$msg['master'][3]); //master mysql
$this->mysqlslave = $this->autotranscat($msg); // slave mysql
if(mysqli_connect_errno()){
printf("Connect failed: %s ",mysqli_connect_error());
exit();
}
if(!$this->mysqlmaster->set_charset("latin1") && !$this->mysqlslave->set_charset("latin1")){
exit("set charset error");
}
}
private function autotranscat($mysql){
session_start();
$_SESSION['SID']!=0 || $_SESSION['SID']=0 ;
if($_SESSION['SID'] >=count($mysql)-1) $_SESSION['SID'] = 1;
else $_SESSION['SID']++;
$key = 'slave_'.$_SESSION['SID'];
echo($_SESSION['SID']);
return new mysqli($mysql[$key][0],$mysql[$key][1],$mysql[$key][2],$mysql[$key][3]);
}
public function mquery($sql){ //insert update
if(!$this->mysqlmaster->query($sql)){
return false;
}
}
public function squery($sql){
if($result=$this->mysqlslave->query($sql)){
return $result;
}else{
return false;
};
}
public function fetArray($sql){
if($result=$this->squery($sql)){
while($row=$result->fetch_array(MYSQLI_ASSOC)){
$resultraa[] = $row;
};
return $resultraa;
}
}
}
?>

require 'init.php';
$mem = new Memcached;
/* $mem->set('en_xx','bucuo');
echo($mem->get('en_xx'));
$mem->set('cn_jjyy','wokao');
echo($mem->get('cn_jjyy'));
*/
$sq = new Mysql;
$sql = "insert into mybb(pid) values(200)";
$mdsql = md5($sql);
if(!$result=$mem->get('cn_'.$mdsql)){
$sq->mquery("insert into mybb(pid) values(200)"); //插入到主mysql
$result = $sq->fetArray("select * from mybb"); //查询 是 从mysql
foreach($result as $var){
echo $var['pid'];
}
$mem->set('cn_'.$mdsql,$result); //添加到 名为 cn 的 memcached 服务器
}else{
foreach($result as $var){
echo $var['pid'];
}
}
?>