PHP五子棋服务器代码

<?php

header("Content-type:text/html;charset=utf-8");

//报名
if (isset($_REQUEST['name']) && isset($_REQUEST['key']) &&  isset($_REQUEST['chess']) ) {
    $tmp['name']=strip_tags(iconv('gb2312','utf-8',$_REQUEST['name']));
    $tmp['key']=strip_tags(iconv('gb2312','utf-8',$_REQUEST['key']));
    $tmp['chess']= $_REQUEST['chess'];
    $tmp['x']=-1;
    $tmp['y']=-1;
    $tmp['time']=date("y-m-d h:i:s",time());

    insertName($tmp);
}
//刷新下棋位置
if (isset($_REQUEST['name']) && isset($_REQUEST['x']) && isset($_REQUEST['y'])) {
    $tmp['name']=strip_tags(iconv('gb2312','utf-8',$_REQUEST['name']));
    $tmp['x']=$_REQUEST['x'];
    $tmp['y']=$_REQUEST['y'];
    updateName($tmp);
}
//退出游戏
if (isset($_REQUEST['name']) && isset($_REQUEST['del']) ) {
    $tmp['name']=$_REQUEST['name'];
    deleteName($tmp);
}
//显示所有玩家信息
selectName();

function insertName($tmp){
    $kv = new SaeKV();
    $ret = $kv->init();
    $ret = $kv->set(strip_tags(md5($tmp['name'])), $tmp);
}
function deleteName($tmp){
    $kv = new SaeKV();
    $kv->init();
    $ret = $kv->delete(strip_tags(md5($tmp['name'])));
}
function updateName($tmp){
    $kv = new SaeKV();
    $kv->init();
    $ret = $kv->set(strip_tags(md5($tmp['name'])), $tmp);
}
function selectName(){
    $kv = new SaeKV();
    $kv->init();
    $ret = $kv->pkrget('', 100);
    $arr;
    while (true) {
        $arr = $ret;
        end($ret);
        $start_key = key($ret);
        $i = count($ret);
        if ($i < 100)
            break;
        $ret = $kv->pkrget('', 100, $start_key);
    }
    $_return;
    foreach ($arr as $key => $value) {
        $_return[] = $value;

        $_pre=strtotime($value['time']);
        $_now=strtotime(date('y-m-d h:i:s',time()));
        $_delta = $_now - $_pre;

        //如果超过1小时 自动删除记录
        if ($_delta>3600) {
            //echo $value['name']."的时间差是".$_delta;
            deleteName($value);
        }
    }
    echo json_encode($_return,JSON_UNESCAPED_UNICODE);
}

?>