1.打開后臺入口文件admin.php
header('location:index.php?m=admin');
跳轉(zhuǎn)到index.php并且m=admin
2.打開index.php
define('PHPCMS_PATH', dirname(__FILE__).DIRECTORY_SEPARATOR);
include PHPCMS_PATH.'/phpcms/base.php';
pc_base::creat_app();
定義了根目錄,包含了框架的入口文件base.php,并且使用類靜態(tài)方法creat_app()
3.打開框架入口文件base.php
define('IN_PHPCMS', true);
//PHPCMS框架路徑
define('PC_PATH', dirname(__FILE__).DIRECTORY_SEPARATOR);
if(!defined('PHPCMS_PATH')) define('PHPCMS_PATH', PC_PATH.'..'.DIRECTORY_SEPARATOR);
//緩存文件夾地址
define('CACHE_PATH', PHPCMS_PATH.'caches'.DIRECTORY_SEPARATOR);
//主機(jī)協(xié)議
define('SITE_PROTOCOL', isset($_SERVER['SERVER_PORT']) && $_SERVER['SERVER_PORT'] == '443' ? 'https://' : 'http://');
//當(dāng)前訪問的主機(jī)名
define('SITE_URL', (isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : ''));
//來源
define('HTTP_REFERER', isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : '');
//系統(tǒng)開始時(shí)間
define('SYS_START_TIME', microtime());
//加載公用函數(shù)庫
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);
//設(shè)置本地時(shí)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'));
//輸出頁面字符集
header('Content-type: text/html; charset='.CHARSET);
define('SYS_TIME', time());
//定義網(wǎng)站根路徑
define('WEB_PATH',pc_base::load_config('system','web_path'));
//js 路徑
define('JS_PATH',pc_base::load_config('system','js_path'));
//css 路徑
define('CSS_PATH',pc_base::load_config('system','css_path'));
//img 路徑
define('IMG_PATH',pc_base::load_config('system','img_path'));
//動態(tài)程序路徑
define('APP_PATH',pc_base::load_config('system','app_path'));
//應(yīng)用靜態(tài)文件路徑
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 {
/**
* 初始化應(yīng)用程序
*/
public static function creat_app() {
return self::load_sys_class('application');
}
/**
* 加載系統(tǒng)類方法
* @param string $classname 類名
* @param string $path 擴(kuò)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);
}
/**
* 加載應(yīng)用類方法
* @param string $classname 類名
* @param string $m 模塊
* @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);
}
/**
* 加載數(shù)據(jù)模型
* @param string $classname 類名
*/
public static function load_model($classname) {
return self::_load_class($classname,'model');
}
/**
* 加載類文件函數(shù)
* @param string $classname 類名
* @param string $path 擴(kuò)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;
}
}
/**
* 加載系統(tǒng)的函數(shù)庫
* @param string $func 函數(shù)庫名
*/
public static function load_sys_func($func) {
return self::_load_func($func);
}
/**
* 自動加載autoload目錄下函數(shù)庫
* @param string $func 函數(shù)庫名
*/
public static function auto_load_func($path='') {
return self::_auto_load_func($path);
}
/**
* 加載應(yīng)用函數(shù)庫
* @param string $func 函數(shù)庫名
* @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');
}
/**
* 加載插件類庫
*/
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);
}
/**
* 加載插件函數(shù)庫
* @param string $func 函數(shù)文件名稱
* @param string $identification 插件標(biāo)識
*/
public static function load_plugin_func($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;
}
/**
* 加載插件數(shù)據(jù)模型
* @param string $classname 類名
*/
public static function load_plugin_model($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);
}
/**
* 加載函數(shù)庫
* @param string $func 函數(shù)庫名
* @param string $path 地址
*/
private static function _load_func($func, $path = '') {
static $funcs = array();
if (empty($path)) $path = 'libs'.DIRECTORY_SEPARATOR.'functions';//默認(rèn)函數(shù)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;
}
/**
* 加載函數(shù)庫
* @param string $func 函數(shù)庫名
* @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;
}
}
}
/**
* 是否有自己的擴(kuò)展文件
* @param string $filepath 路徑
*/
public static function my_path($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;
}
}
/**
* 加載配置文件
* @param string $file 配置文件
* @param string $key 要獲取的配置薦
* @param string $default 默認(rèn)配置。當(dāng)獲取配置項(xiàng)目失敗時(shí)該值發(fā)生作用。
* @param boolean $reload 強(qiáng)制重新加載。
*/
public static function load_config($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 $default;
}
}
}
①定義各后期可能用到的常量
②創(chuàng)建了pc_base類,加載類并且實(shí)例化和
③加載基本框架需要的函數(shù)庫
④定義creat_app() 包含application且實(shí)例化
4.打開框架類庫文件下的application.class.php文件
執(zhí)行構(gòu)造函數(shù)
加載param路由類,使用路由類中 的$param->route_m(),$param->route_c(),$param->route_a()獲取模塊和控制器以 及方法,route_m為模塊,在modules文件下,然后是控制器和方法,標(biāo)準(zhǔn)的mvc結(jié)構(gòu)
然后執(zhí)行int函數(shù)
執(zhí)行l(wèi)oad_controller加載獲取到的控制器并且實(shí)例化!
5.打開index.php?m=admin&a=index&c=login登錄頁面
defined('IN_PHPCMS') or exit('No permission resources.');
pc_base::load_app_class('admin','admin',0);
判斷是否從框架入口文件進(jìn)入,然后加載admin模塊下的admin類文件
class index extends admin {
public function __construct() {
parent::__construct(); //調(diào)用父類構(gòu)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');
}
然后使用構(gòu)造方法加載使用到的模型文件(MVC中的M),然后看父類的構(gòu)造方法
6.打開框架類文件admin.class.php
這個類文件,這個模塊中的最高級類,做了很多判斷操作,以及本模塊一些必須的東西(加載模板)
7.然后讓我們看admin_model.class.php類
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();
}
}
admin_model extends model繼承model然后使用了一些方法
<?php
/**
* model.class.php 數(shù)據(jù)模型基類
*
* @copyright (C) 2005-2010 PHPCMS
* @license http://www.phpcms.cn/license/
* @lastmodify 2010-6-7
*/
defined('IN_PHPCMS') or exit('Access Denied');
pc_base::load_sys_class('db_factory', '', 0);
class model {
//數(shù)據(jù)庫配置
protected $db_config = '';
//數(shù)據(jù)庫連接
protected $db = '';
//調(diào)用數(shù)據(jù)庫的配置項(xiàng)
protected $db_setting = 'default';
//數(shù)據(jù)表名
protected $table_name = '';
//表前綴
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);
}
/**
* 執(zhí)行sql查詢
* @param $where 查詢條件[例`name`='$name']
* @param $data 需要查詢的字段值[例`name`,`gender`,`birthday`]
* @param $limit 返回結(jié)果范圍[例:10或10,10 默認(rèn)為空]
* @param $order 排序方式 [默認(rèn)按數(shù)據(jù)庫默認(rèn)方式排序]
* @param $group 分組方式 [默認(rèn)為空]
* @param $key 返回?cái)?shù)組按鍵名排序
* @return array 查詢結(jié)果集數(shù)組
*/
final public function select($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);
}
/**
* 查詢多條數(shù)據(jù)并分頁
* @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();
}
}
/**
* 獲取單條記錄查詢
* @param $where 查詢條件
* @param $data 需要查詢的字段值[例`name`,`gender`,`birthday`]
* @param $order 排序方式 [默認(rèn)按數(shù)據(jù)庫默認(rèn)方式排序]
* @param $group 分組方式 [默認(rèn)為空]
* @return array/null 數(shù)據(jù)查詢結(jié)果集,如果不存在,則返回空
*/
final public function get_one($where = '', $data = '*', $order = '', $group = '') {
if (is_array($where)) $where = $this->sqls($where);
return $this->db->get_one($data, $this->table_name, $where, $order, $group);
}
/**
* 直接執(zhí)行sql查詢
* @param $sql 查詢sql語句
* @return boolean/query resource 如果為查詢語句,返回資源句柄,否則返回true/false
*/
final public function query($sql) {
$sql = str_replace('phpcms_', $this->db_tablepre, $sql);
return $this->db->query($sql);
}
/**
* 執(zhí)行添加記錄操作
* @param $data 要增加的數(shù)據(jù),參數(shù)為數(shù)組。數(shù)組key為字段值,數(shù)組值為數(shù)據(jù)取值
* @param $return_insert_id 是否返回新建ID號
* @param $replace 是否采用 replace into的方式添加數(shù)據(jù)
* @return boolean
*/
final public function insert($data, $return_insert_id = false, $replace = false) {
return $this->db->insert($data, $this->table_name, $return_insert_id, $replace);
}
/**
* 獲取最后一次添加記錄的主鍵號
* @return int
*/
final public function insert_id() {
return $this->db->insert_id();
}
/**
* 執(zhí)行更新記錄操作
* @param $data 要更新的數(shù)據(jù)內(nèi)容,參數(shù)可以為數(shù)組也可以為字符串,建議數(shù)組。
* 為數(shù)組時(shí)數(shù)組key為字段值,數(shù)組值為數(shù)據(jù)取值
* 為字符串時(shí)[例:`name`='phpcms',`hits`=`hits`+1]。
* 為數(shù)組時(shí)[例: array('name'=>'phpcms','password'=>'123456')]
* 數(shù)組的另一種使用array('name'=>'+=1', 'base'=>'-=1');程序會自動解析為`name` = `name` + 1, `base` = `base` - 1
* @param $where 更新數(shù)據(jù)時(shí)的條件,可為數(shù)組或字符串
* @return boolean
*/
final public function update($data, $where = '') {
if (is_array($where)) $where = $this->sqls($where);
return $this->db->update($data, $this->table_name, $where);
}
/**
* 執(zhí)行刪除記錄操作
* @param $where 刪除數(shù)據(jù)條件,不充許為空。
* @return boolean
*/
final public function delete($where) {
if (is_array($where)) $where = $this->sqls($where);
return $this->db->delete($this->table_name, $where);
}
/**
* 計(jì)算記錄數(shù)
* @param string/array $where 查詢條件
*/
final public function count($where = '') {
$r = $this->get_one($where, "COUNT(*) AS num");
return $r['num'];
}
/**
* 將數(shù)組轉(zhuǎn)換為SQL語句
* @param array $where 要生成的數(shù)組
* @param string $font 連接串。
*/
final public function sqls($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;
}
}
/**
* 獲取最后數(shù)據(jù)庫操作影響到的條數(shù)
* @return int
*/
final public function affected_rows() {
return $this->db->affected_rows();
}
/**
* 獲取數(shù)據(jù)表主鍵
* @return array
*/
final public function get_primary() {
return $this->db->get_primary($this->table_name);
}
/**
* 獲取表字段
* @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);
}
/**
* 檢查表是否存在
* @param $table 表名
* @return boolean
*/
final public function table_exists($table){
return $this->db->table_exists($this->db_tablepre.$table);
}
/**
* 檢查字段是否存在
* @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?cái)?shù)據(jù)結(jié)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?cái)?shù)據(jù)庫版本號
*/
final public function version() {
return $this->db->version();
}
}
包含了數(shù)據(jù)庫操作封裝,然后數(shù)據(jù)庫的連接,大致思路就是如此



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