懂php mvc开发的进来

$_ENV['user']= new user()试试意思就是要实例化类，存进变量
然后调用

有时要在类里调用别的实例化类，且双方均保存状态，可用&

没有context，不知道怎么帮……

<?php/*
[UCenter] (C)2001-2009 Comsenz Inc.
This is NOT a freeware, use is subject to license terms $Id: user.php 879 2008-12-15 03:28:36Z zhaoxiongfei $
*/!defined('IN_UC') && exit('Access Denied');class usermodel { var $db;
var $base; function __construct(&$base) {
$this->usermodel($base);
} function usermodel(&$base) {
$this->base = $base;
$this->db = $base->db;
} function get_user_by_uid($uid) {
$arr = $this->db->fetch_first("SELECT * FROM ".UC_DBTABLEPRE."members WHERE uid='$uid'");
return $arr;
} function get_user_by_username($username) {
$arr = $this->db->fetch_first("SELECT * FROM ".UC_DBTABLEPRE."members WHERE username='$username'");
return $arr;
}
//这里是我添加的方法
function get_user_id_by_username($username){
$uid = $this->db->result_first("SELECT uid FROM uchome_space WHERE username='$username'");
return $uid;
} function check_username($username) {
$guestexp = '\xA1\xA1|\xAC\xA3|^Guest|^\xD3\xCE\xBF\xCD|\xB9\x43\xAB\xC8';
$len = strlen($username);
if($len > 15 || $len < 3 || preg_match("/\s+|^c:\\con\\con|[%,\*\"\s\<\>\&]|$guestexp/is", $username)) {
return FALSE;
} else {
return TRUE;
}
} function check_mergeuser($username) {
$data = $this->db->result_first("SELECT count(*) FROM ".UC_DBTABLEPRE."mergemembers WHERE appid='".$this->base->app['appid']."' AND username='$username'");
return $data;
} function check_usernamecensor($username) {
$_CACHE['badwords'] = $this->base->cache('badwords');
$censorusername = $this->base->get_setting('censorusername');
$censorusername = $censorusername['censorusername'];
$censorexp = '/^('.str_replace(array('\\*', "\r\n", ' '), array('.*', '|', ''), preg_quote(($censorusername = trim($censorusername)), '/')).')$/i';
$usernamereplaced = isset($_CACHE['badwords']['findpattern']) && !empty($_CACHE['badwords']['findpattern']) ? @preg_replace($_CACHE['badwords']['findpattern'], $_CACHE['badwords']['replace'], $username) : $username;
if(($usernamereplaced != $username) || ($censorusername && preg_match($censorexp, $username))) {
return FALSE;
} else {
return TRUE;
}
} function delete_user($uidsarr) {
$uidsarr = (array)$uidsarr;
$uids = $this->base->implode($uidsarr);
$arr = $this->db->fetch_all("SELECT uid FROM ".UC_DBTABLEPRE."protectedmembers WHERE uid IN ($uids)");
$puids = array();
foreach((array)$arr as $member) {
$puids[] = $member['uid'];
}
$uids = $this->base->implode(array_diff($uidsarr, $puids));
if($uids) {
$this->db->query("DELETE FROM ".UC_DBTABLEPRE."members WHERE uid IN($uids)");
$this->db->query("DELETE FROM ".UC_DBTABLEPRE."memberfields WHERE uid IN($uids)");
$this->delete_useravatar($uidsarr);
$this->base->load('note');
$_ENV['note']->add('deleteuser', "ids=$uids");
return $this->db->affected_rows();
} else {
return 0;
}
} function delete_useravatar($uidsarr) {
$uidsarr = (array)$uidsarr;
foreach((array)$uidsarr as $uid) {
file_exists($avatar_file = UC_DATADIR.'./avatar/'.$this->base->get_avatar($uid, 'big', 'real')) && unlink($avatar_file);
file_exists($avatar_file = UC_DATADIR.'./avatar/'.$this->base->get_avatar($uid, 'middle', 'real')) && unlink($avatar_file);
file_exists($avatar_file = UC_DATADIR.'./avatar/'.$this->base->get_avatar($uid, 'small', 'real')) && unlink($avatar_file);
file_exists($avatar_file = UC_DATADIR.'./avatar/'.$this->base->get_avatar($uid, 'big')) && unlink($avatar_file);
file_exists($avatar_file = UC_DATADIR.'./avatar/'.$this->base->get_avatar($uid, 'middle')) && unlink($avatar_file);
file_exists($avatar_file = UC_DATADIR.'./avatar/'.$this->base->get_avatar($uid, 'small')) && unlink($avatar_file);
}
}

function get_total_num($sqladd = '') {
$data = $this->db->result_first("SELECT COUNT(*) FROM ".UC_DBTABLEPRE."members $sqladd");
return $data;
} function get_list($page, $ppp, $totalnum, $sqladd) {
$start = $this->base->page_get_start($page, $ppp, $totalnum);
$data = $this->db->fetch_all("SELECT * FROM ".UC_DBTABLEPRE."members $sqladd LIMIT $start, $ppp");
return $data;
} function name2id($usernamesarr) {
$usernamesarr = daddslashes($usernamesarr, 1, TRUE);
$usernames = $this->base->implode($usernamesarr);
$query = $this->db->query("SELECT uid FROM ".UC_DBTABLEPRE."members WHERE username IN($usernames)");
$arr = array();
while($user = $this->db->fetch_array($query)) {
$arr[] = $user['uid'];
}
return $arr;
} function quescrypt($questionid, $answer) {
return $questionid > 0 && $answer != '' ? substr(md5($answer.md5($questionid)), 16, 8) : '';
}}?>

<?php/*
[UCenter] (C)2001-2009 Comsenz Inc.
This is NOT a freeware, use is subject to license terms $Id: avatar.php 910 2008-12-30 03:51:44Z monkey $
*/
error_reporting(0);
define('IN_UC', TRUE);
define('UC_ROOT', substr(__FILE__, 0, -9));
define('UC_API', strtolower((isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on' ? 'https' : 'http').'://'.$_SERVER['HTTP_HOST'].substr($_SERVER['PHP_SELF'], 0, strrpos($_SERVER['PHP_SELF'], '/'))));
define('UC_DATADIR', UC_ROOT.'data/');
define('UC_DATAURL', UC_API.'/data');
define('MAGIC_QUOTES_GPC', get_magic_quotes_gpc());
define('UC_API', strtolower(($_SERVER['HTTPS'] == 'on' ? 'https' : 'http').'://'.$_SERVER['HTTP_HOST'].substr($_SERVER['PHP_SELF'], 0, strrpos($_SERVER['PHP_SELF'], '/'))));$uid = isset($_GET['uid']) ? $_GET['uid'] : 0;
$username = isset($_GET['username'])? $_GET['username'] : '';
$size = isset($_GET['size']) ? $_GET['size'] : '';
$random = isset($_GET['random']) ? $_GET['random'] : '';
$type = isset($_GET['type']) ? $_GET['type'] : '';
$check = isset($_GET['check_file_exists']) ? $_GET['check_file_exists'] : '';
if (!empty($uid)) {
$avatar = './data/avatar/'.get_avatar($uid, $size, $type);
}else {
$avatar = './data/avatar/'.get_avatars($username, $size, $type);
}
if(file_exists(dirname(__FILE__).'/'.$avatar)) {
if($check) {
echo 1;
exit;
}
$random = !empty($random) ? rand(1000, 9999) : '';
$avatar_url = empty($random) ? $avatar : $avatar.'?random='.$random;
} else {
if($check) {
echo 0;
exit;
}
$size = in_array($size, array('big', 'middle', 'small')) ? $size : 'middle';
$avatar_url = 'images/noavatar_'.$size.'.gif';
}if(empty($random)) {
header("HTTP/1.1 301 Moved Permanently");
header("Last-Modified:".date('r'));
header("Expires: ".date('r', time() + 86400));
}header('Location: '.UC_API.'/'.$avatar_url);
exit;//下面是调用的方法
function get_avatars($username, $size = 'middle', $type = '') {
$size = in_array($size, array('big', 'middle', 'small')) ? $size : 'middle';
require UC_ROOT.'model/user.php';
//include_once('model/user.php');
$users = new usermodel();
//$uid= $this->$users->get_user_id_by_username($username);
$uid = 1;
$uid = abs(intval($uid));
$uid = sprintf("%09d", $uid);
$dir1 = substr($uid, 0, 3);
$dir2 = substr($uid, 3, 2);
$dir3 = substr($uid, 5, 2);
$typeadd = $type == 'real' ? '_real' : '';
return $dir1.'/'.$dir2.'/'.$dir3.'/'.substr($uid, -2).$typeadd."_avatar_$size.jpg";
}?>

//下面是调用的方法
function get_avatars($username, $size = 'middle', $type = '') {
    $size = in_array($size, array('big', 'middle', 'small')) ? $size : 'middle';
    //下面是引用方法的代码
    require UC_ROOT.'model/user.php';
    //include_once('model/user.php');
    $users = new usermodel();
    //$uid= $this->$users->get_user_id_by_username($username);
    $uid = 1;
    $uid = abs(intval($uid));
    $uid = sprintf("%09d", $uid);
    $dir1 = substr($uid, 0, 3);
    $dir2 = substr($uid, 3, 2);
    $dir3 = substr($uid, 5, 2);
    $typeadd = $type == 'real' ? '_real' : '';
    return $dir1.'/'.$dir2.'/'.$dir3.'/'.substr($uid, -2).$typeadd."_avatar_$size.jpg";
}

不知uchome是自已的框架还是用的别的？

没接触过uchome。有点疑问
$users = new usermodel(); //既然实例化了
//$uid= $this->$users->get_user_id_by_username($username); //$this->$users是为何？
$users->get_user_id_by_username($username);//这样调用不行？

不好用是因为你
require UC_ROOT.'model/user.php'
这句没引用到类文件呢，还是有什么错误？
而且usermode类里的构造函数也是必须有参数的，你似乎实例化的时候没传进来。!defined('IN_UC') && exit('Access Denied');class usermodel {    var $db;
    var $base;    function __construct(&$base) {//$base参数，包含一个db的实例化对象
        $this->usermodel($base);
    }    function usermodel(&$base) {//$base参数，包含一个db的实例化对象
        $this->base = $base;
        $this->db = $base->db;
    }
...

$users = new usermodel($base); //既然实例化了,这里必须传一个$base参数,至于$base是什么样的一个对象，只能lz自己去看看了
//$uid= $this->$users->get_user_id_by_username($username); //$this->$users是为何？
$users->get_user_id_by_username($username);//这样调用不行？

&$base引用的可能是基本类
你找下，或在调用usermodel 的网页里输出一下看看&base是什么，在什么时候传入的

根据名字来看，估计是uchome定义的基类，class base{..}这样的东西，你应该去看看api文档，或者找找usermodel里的其它方法是怎么调用的。

&$base，它这个是引用的基类，应该也是已实例化的你看一下别的程序段引用user类时传的是什么进去的

$user = $_ENV['user']->get_user_by_uid($fromuid);

$user = $_ENV['user']->get_user_by_uid($fromuid);在哪个页

看了一下首先，它的控制器类和模型类均是继承自model下的base类且base，有load方法，加载模型类，下面是base类中的方法/**
* 加载相应的 Model, 存入 $_ENV 超级全局变量
*
* @param string $model 模块名称
* @param 该模块相对的基类 $base 默认为该基类
* @return 此处不需要返回
*/
function load($model, $base = NULL) {
$base = $base ? $base : $this;
if(empty($_ENV[$model])) {
require_once UC_ROOT."./model/$model.php";
eval('$_ENV[$model] = new '.$model.'model($base);');
}
return $_ENV[$model];
}
问题在于，能否在其他地方调用：个人看法是调用问题多：
首先，在框架中，一般的模型类方法只能控制器中调用，如果你在控制器中写方法，是可以的，因为均继承自base
你可以在控制器中如：user.php加载，$this->load('user');就可以用它的方法了，一般为$this->uer->get_user_id_by_username($username);第二个：在根目录文件中能否调用，个人觉得在uchome调用可能不行？因为它不是控制器中！
控制器在uc_client中controller中如果强制调用，要么引用base类，要么改模型类中的$base 参数，可行度不大第三个，可以看看UChome是如何利用控制器的，按照它的方法用！

调试易

懂php mvc开发的进来

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