PHPCMS后台框架实现思路介绍

header('location:index.php?m=admin');

define('PHPCMS_PATH', dirname(__FILE__).DIRECTORY_SEPARATOR);
include PHPCMS_PATH.'/phpcms/base.php';
pc_base::creat_app();

define('IN_PHPCMS', true);
//PHPCMS框架路径
define('PC_PATH', dirname(__FILE__).DIRECTORY_SEPARATOR);
if(!defined('PHPCMS_PATH')) define('PHPCMS_PATH', PC_PATH.'..'.DIRECTORY_SEPARATOR);
//缓存文件夹地址
define('CACHE_PATH', PHPCMS_PATH.'caches'.DIRECTORY_SEPARATOR);
//主机协议
define('SITE_PROTOCOL', isset($_SERVER['SERVER_PORT']) && $_SERVER['SERVER_PORT'] == '443' ? 'https://' : 'http://');
//当前访问的主机名
define('SITE_URL', (isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : ''));
//来源
define('HTTP_REFERER', isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : '');
//系统开始时间
define('SYS_START_TIME', microtime());
//加载公用函数库
pc_base::load_sys_func('global');
pc_base::load_sys_func('extention');
pc_base::auto_load_func();
pc_base::load_config('system','errorlog') ? set_error_handler('my_error_handler') : error_reporting(E_ERROR | E_WARNING | E_PARSE);
//设置本地时差
function_exists('date_default_timezone_set') && date_default_timezone_set(pc_base::load_config('system','timezone'));
define('CHARSET' ,pc_base::load_config('system','charset'));
//输出页面字符集
header('Content-type: text/html; charset='.CHARSET);
define('SYS_TIME', time());
//定义网站根路径
define('WEB_PATH',pc_base::load_config('system','web_path'));
//js 路径
define('JS_PATH',pc_base::load_config('system','js_path'));
//css 路径
define('CSS_PATH',pc_base::load_config('system','css_path'));
//img 路径
define('IMG_PATH',pc_base::load_config('system','img_path'));
//动态程序路径
define('APP_PATH',pc_base::load_config('system','app_path'));
//应用静态文件路径
define('PLUGIN_STATICS_PATH',WEB_PATH.'statics/plugin/');
if(pc_base::load_config('system','gzip') && function_exists('ob_gzhandler')) {
ob_start('ob_gzhandler');
} else {
ob_start();
}
class pc_base {
/**
* 初始化应用程序
*/
public static function creat_app() {
return self::load_sys_class('application');
}
/**
* 加载系统类方法
* @param string $classname 类名
* @param string $path 扩展地址
* @param intger $initialize 是否初始化
*/
public static function load_sys_class($classname, $path = '', $initialize = 1) {
return self::_load_class($classname, $path, $initialize);
}
/**
* 加载应用类方法
* @param string $classname 类名
* @param string $m 模块
* @param intger $initialize 是否初始化
*/
public static function load_app_class($classname, $m = '', $initialize = 1) {
$m = empty($m) && defined('ROUTE_M') ? ROUTE_M : $m;
if (empty($m)) return false;
return self::_load_class($classname, 'modules'.DIRECTORY_SEPARATOR.$m.DIRECTORY_SEPARATOR.'classes', $initialize);
}
/**
* 加载数据模型
* @param string $classname 类名
*/
public static function load_model($classname) {
return self::_load_class($classname,'model');
}
/**
* 加载类文件函数
* @param string $classname 类名
* @param string $path 扩展地址
* @param intger $initialize 是否初始化
*/
private static function _load_class($classname, $path = '', $initialize = 1) {
static $classes = array();
if (empty($path)) $path = 'libs'.DIRECTORY_SEPARATOR.'classes';
$key = md5($path.$classname);
if (isset($classes[$key])) {
if (!empty($classes[$key])) {
return $classes[$key];
} else {
return true;
}
}
if (file_exists(PC_PATH.$path.DIRECTORY_SEPARATOR.$classname.'.class.php')) {
include PC_PATH.$path.DIRECTORY_SEPARATOR.$classname.'.class.php';
$name = $classname;
if ($my_path = self::my_path(PC_PATH.$path.DIRECTORY_SEPARATOR.$classname.'.class.php')) {
include $my_path;
$name = 'MY_'.$classname;
}
if ($initialize) {
$classes[$key] = new $name;
} else {
$classes[$key] = true;
}
return $classes[$key];
} else {
return false;
}
}
/**
* 加载系统的函数库
* @param string $func 函数库名
*/
public static function load_sys_func($func) {
return self::_load_func($func);
}
/**
* 自动加载autoload目录下函数库
* @param string $func 函数库名
*/
public static function auto_load_func($path='') {
return self::_auto_load_func($path);
}
/**
* 加载应用函数库
* @param string $func 函数库名
* @param string $m 模型名
*/
public static function load_app_func($func, $m = '') {
$m = empty($m) && defined('ROUTE_M') ? ROUTE_M : $m;
if (empty($m)) return false;
return self::_load_func($func, 'modules'.DIRECTORY_SEPARATOR.$m.DIRECTORY_SEPARATOR.'functions');
}
/**
* 加载插件类库
*/
public static function load_plugin_class($classname, $identification = '' ,$initialize = 1) {
$identification = empty($identification) && defined('PLUGIN_ID') ? PLUGIN_ID : $identification;
if (empty($identification)) return false;
return pc_base::load_sys_class($classname, 'plugin'.DIRECTORY_SEPARATOR.$identification.DIRECTORY_SEPARATOR.'classes', $initialize);
}
/**
* 加载插件函数库
* @param string $func 函数文件名称
* @param string $identification 插件标识
*/
public static function load_plugin_func($func,$identification) {
static $funcs = array();
$identification = empty($identification) && defined('PLUGIN_ID') ? PLUGIN_ID : $identification;
if (empty($identification)) return false;
$path = 'plugin'.DIRECTORY_SEPARATOR.$identification.DIRECTORY_SEPARATOR.'functions'.DIRECTORY_SEPARATOR.$func.'.func.php';
$key = md5($path);
if (isset($funcs[$key])) return true;
if (file_exists(PC_PATH.$path)) {
include PC_PATH.$path;
} else {
$funcs[$key] = false;
return false;
}
$funcs[$key] = true;
return true;
}
/**
* 加载插件数据模型
* @param string $classname 类名
*/
public static function load_plugin_model($classname,$identification) {
$identification = empty($identification) && defined('PLUGIN_ID') ? PLUGIN_ID : $identification;
$path = 'plugin'.DIRECTORY_SEPARATOR.$identification.DIRECTORY_SEPARATOR.'model';
return self::_load_class($classname,$path);
}
/**
* 加载函数库
* @param string $func 函数库名
* @param string $path 地址
*/
private static function _load_func($func, $path = '') {
static $funcs = array();
if (empty($path)) $path = 'libs'.DIRECTORY_SEPARATOR.'functions';//默认函数地址在lib function
$path .= DIRECTORY_SEPARATOR.$func.'.func.php';
$key = md5($path);
if (isset($funcs[$key])) return true;
if (file_exists(PC_PATH.$path)) {
include PC_PATH.$path;
} else {
$funcs[$key] = false;
return false;
}
$funcs[$key] = true;
return true;
}
/**
* 加载函数库
* @param string $func 函数库名
* @param string $path 地址
*/
private static function _auto_load_func($path = '') {
if (empty($path)) $path = 'libs'.DIRECTORY_SEPARATOR.'functions'.DIRECTORY_SEPARATOR.'autoload';
$path .= DIRECTORY_SEPARATOR.'*.func.php';
$auto_funcs = glob(PC_PATH.DIRECTORY_SEPARATOR.$path);
if(!empty($auto_funcs) && is_array($auto_funcs)) {
foreach($auto_funcs as $func_path) {
include $func_path;
}
}
}
/**
* 是否有自己的扩展文件
* @param string $filepath 路径
*/
public static function my_path($filepath) {
$path = pathinfo($filepath);
if (file_exists($path['dirname'].DIRECTORY_SEPARATOR.'MY_'.$path['basename'])) {
return $path['dirname'].DIRECTORY_SEPARATOR.'MY_'.$path['basename'];
} else {
return false;
}
}
/**
* 加载配置文件
* @param string $file 配置文件
* @param string $key要获取的配置荐
* @param string $default默认配置。当获取配置项目失败时该值发生作用。
* @param boolean $reload 强制重新加载。
*/
public static function load_config($file, $key = '', $default = '', $reload = false) {
static $configs = array();
if (!$reload && isset($configs[$file])) {
if (empty($key)) {
return $configs[$file];
} elseif (isset($configs[$file][$key])) {
return $configs[$file][$key];
} else {
return $default;
}
}
$path = CACHE_PATH.'configs'.DIRECTORY_SEPARATOR.$file.'.php';
if (file_exists($path)) {
$configs[$file] = include $path;
}
if (empty($key)) {
return $configs[$file];
} elseif (isset($configs[$file][$key])) {
return $configs[$file][$key];
} else {
return $default;
}
}
}

defined('IN_PHPCMS') or exit('No permission resources.');
pc_base::load_app_class('admin','admin',0);

class index extends admin {
public function __construct() {
parent::__construct(); //调用父类构造方法
$this->db = pc_base::load_model('admin_model');
$this->menu_db = pc_base::load_model('menu_model');
$this->panel_db = pc_base::load_model('admin_panel_model');
}

defined('IN_PHPCMS') or exit('No permission resources.');
pc_base::load_sys_class('model', '', 0);
class admin_model extends model {
public function __construct() {
$this->db_config = pc_base::load_config('database');
$this->db_setting = 'default';
$this->table_name = 'admin';
parent::__construct();
}
}

<?php
/**
*model.class.php 数据模型基类
*
* @copyright(C) 2005-2010 PHPCMS
* @license
* @lastmodify 2010-6-7
*/
defined('IN_PHPCMS') or exit('Access Denied');
pc_base::load_sys_class('db_factory', '', 0);
class model {
//数据库配置
protected $db_config = '';
//数据库连接
protected $db = '';
//调用数据库的配置项
protected $db_setting = 'default';
//数据表名
protected $table_name = '';
//表前缀
public$db_tablepre = '';
public function __construct() {
if (!isset($this->db_config[$this->db_setting])) {
$this->db_setting = 'default';
}
$this->table_name = $this->db_config[$this->db_setting]['tablepre'].$this->table_name;
$this->db_tablepre = $this->db_config[$this->db_setting]['tablepre'];
$this->db = db_factory::get_instance($this->db_config)->get_database($this->db_setting);
}
/**
* 执行sql查询
* @param $where 查询条件[例`name`='$name']
* @param $data需要查询的字段值[例`name`,`gender`,`birthday`]
* @param $limit 返回结果范围[例：10或10,10 默认为空]
* @param $order 排序方式[默认按数据库默认方式排序]
* @param $group 分组方式[默认为空]
* @param $key返回数组按键名排序
* @return array 查询结果集数组
*/
final public function select($where = '', $data = '*', $limit = '', $order = '', $group = '', $key='') {
if (is_array($where)) $where = $this->sqls($where);
return $this->db->select($data, $this->table_name, $where, $limit, $order, $group, $key);
}
/**
* 查询多条数据并分页
* @param $where
* @param $order
* @param $page
* @param $pagesize
* @return unknown_type
*/
final public function listinfo($where = '', $order = '', $page = 1, $pagesize = 20, $key='', $setpages = 10,$urlrule = '',$array = array(), $data = '*') {
$where = to_sqls($where);
$this->number = $this->count($where);
$page = max(intval($page), 1);
$offset = $pagesize*($page-1);
$this->pages = pages($this->number, $page, $pagesize, $urlrule, $array, $setpages);
$array = array();
if ($this->number > 0) {
return $this->select($where, $data, "$offset, $pagesize", $order, '', $key);
} else {
return array();
}
}
/**
* 获取单条记录查询
* @param $where 查询条件
* @param $data需要查询的字段值[例`name`,`gender`,`birthday`]
* @param $order 排序方式[默认按数据库默认方式排序]
* @param $group 分组方式[默认为空]
* @return array/null数据查询结果集,如果不存在，则返回空
*/
final public function get_one($where = '', $data = '*', $order = '', $group = '') {
if (is_array($where)) $where = $this->sqls($where);
return $this->db->get_one($data, $this->table_name, $where, $order, $group);
}
/**
* 直接执行sql查询
* @param $sql查询sql语句
* @returnboolean/query resource 如果为查询语句，返回资源句柄，否则返回true/false
*/
final public function query($sql) {
$sql = str_replace('phpcms_', $this->db_tablepre, $sql);
return $this->db->query($sql);
}
/**
* 执行添加记录操作
* @param $data要增加的数据，参数为数组。数组key为字段值，数组值为数据取值
* @param $return_insert_id 是否返回新建ID号
* @param $replace 是否采用 replace into的方式添加数据
* @return boolean
*/
final public function insert($data, $return_insert_id = false, $replace = false) {
return $this->db->insert($data, $this->table_name, $return_insert_id, $replace);
}
/**
* 获取之后一次添加记录的主键号
* @return int
*/
final public function insert_id() {
return $this->db->insert_id();
}
/**
* 执行更新记录操作
* @param $data要更新的数据内容，参数可以为数组也可以为字符串，建议数组。
* 为数组时数组key为字段值，数组值为数据取值
* 为字符串时[例：`name`='phpcms',`hits`=`hits`+1]。
* 为数组时[例: array('name'=>'phpcms','password'=>'123456')]
* 数组的另一种使用array('name'=>'+=1', 'base'=>'-=1');程序会自动解析为`name` = `name` + 1, `base` = `base` - 1
* @param $where 更新数据时的条件,可为数组或字符串
* @return boolean
*/
final public function update($data, $where = '') {
if (is_array($where)) $where = $this->sqls($where);
return $this->db->update($data, $this->table_name, $where);
}
/**
* 执行删除记录操作
* @param $where 删除数据条件,不充许为空。
* @return boolean
*/
final public function delete($where) {
if (is_array($where)) $where = $this->sqls($where);
return $this->db->delete($this->table_name, $where);
}
/**
* 计算记录数
* @param string/array $where 查询条件
*/
final public function count($where = '') {
$r = $this->get_one($where, "COUNT(*) AS num");
return $r['num'];
}
/**
* 将数组转换为SQL语句
* @param array $where 要生成的数组
* @param string $font 连接串。
*/
final public function sqls($where, $font = ' AND ') {
if (is_array($where)) {
$sql = '';
foreach ($where as $key=>$val) {
$sql .= $sql ? " $font `$key` = '$val' " : " `$key` = '$val'";
}
return $sql;
} else {
return $where;
}
}
/**
* 获取之后数据库操作影响到的条数
* @return int
*/
final public function affected_rows() {
return $this->db->affected_rows();
}
/**
* 获取数据表主键
* @return array
*/
final public function get_primary() {
return $this->db->get_primary($this->table_name);
}
/**
* 获取表字段
* @param string $table_name表名
* @return array
*/
final public function get_fields($table_name = '') {
if (empty($table_name)) {
$table_name = $this->table_name;
} else {
$table_name = $this->db_tablepre.$table_name;
}
return $this->db->get_fields($table_name);
}
/**
* 检查表是否存在
* @param $table 表名
* @return boolean
*/
final public function table_exists($table){
return $this->db->table_exists($this->db_tablepre.$table);
}
/**
* 检查字段是否存在
* @param $field 字段名
* @return boolean
*/
public function field_exists($field) {
$fields = $this->db->get_fields($this->table_name);
return array_key_exists($field, $fields);
}
final public function list_tables() {
return $this->db->list_tables();
}
/**
* 返回数据结果集
* @param $query （mysql_query返回值）
* @return array
*/
final public function fetch_array() {
$data = array();
while($r = $this->db->fetch_next()) {
$data[] = $r;
}
return $data;
}
/**
* 返回数据库版本号
*/
final public function version() {
return $this->db->version();
}
}