如何用PHP写一个框架
大三学生一枚，第一次写框架，仿照着THINKPHP 3.2.3，写的不好请多多包涵
树形图如图所示
kakoi 文件夹存放着核心配置文件
Home 文件夹中包含着控制层Controller
数据层Model
以及模板层View和缓存Cache
PUBLIC 主要存储 JS/CSS/等
框架是基于单入口文件 index.php
此处可以实现分组操作。
<?php
//入口文件
//项目文件名称
//DEFINE('OTHER','Admin');
//配置其他文件夹
//配置文件夹请直接写入文件夹名称即可
$OTHER = 'Admin';
DEFINE('EVENT','./Event');
// 引入核心配置文件
require "kakoi/kakoi.php";
?>
引入核心配置
<?php
header("Content-type: text/html; charset=utf-8");
spl_autoload_extensions('.class.php'); //设定以什么扩展名结尾
set_include_path(get_include_path().PATH_SEPARATOR."kakoi/"); //设定文件的目录
spl_autoload_register();
if(isset($OTHER)){
}else{
$OTHER = "Home";
}
$build = buildDir::getInstance();
//引入文件创建
$build->buildFile($OTHER);
//创建控制器
$build->buildController();
//创建配置文件
$build->buildConfig();
$moudle = isset($_GET['moudle'])?$_GET['moudle']:'Home';
$controller = isset($_GET['controller'])?$_GET['controller']:'Index';
$method = isset($_GET['method'])?$_GET['method']:'Index';
// echo $moudle."</br>";
// echo $controller."</br>";
// echo $method."</br>";
//模板存放路径
$path = EVENT."/".$moudle."/View/";
$cache = EVENT."/".$moudle."/Cache";
$Controller = new Controller();
//引入数据库配置文件
$data = require_once(EVENT."/Config/Config.php");
require_once("/DB/DB.class.php");
$DB = new DB($data);
require_once("/View/Template.class.php");
//引入模板
$arrayConfig = array(
"suffix" => ".m", //设置模板文件
"templateDir" => $path, //设置模板所在的文件夹
"compileDir" => $cache,
"debug" => false, //设置编译后存放的目录
"cache_htm" => true, //是否需要编译成静态的html文件
"suffix_cache"=> ".htm", //编译后的文件后缀
"cache_time" =>2000, // 多长时间自动更新
"php_turn" =>false, //是否支持原生的php代码
"cache_control" => "control.dat",
);
static $tpl;
//获取模板对象
$tpl = Template::getInstance($arrayConfig);
//var_dump($tpl);
$handle = handle::getInstance();
$handle->C($moudle,$controller,$method);
//传入数据库配置参数
Config 文件配置信息
<?php return array( 'DB_HOST'=>'localhost', 'DB_USER'=>'root', //用户名 'DB_PWD'=>'', //密码 'DB_NAME'=>'test', //数据库名称 'DB_PORT'=>'3306', //端口号 'DB_TYPE'=>'mysql', //数据库类型 'DB_CHARSET'=>'utf-8', //字符集 );?>
创建用户的APP文件
<?php
class buildDir{
static $content = "<?php
class IndexController{
public function index(){
echo 'welcome to use kakoi';
}
}
?>";
static $config=
"<?php
return array(
'DB_HOST'=>'localhost',
'DB_USER'=>'root', //用户名
'DB_PWD'=>'', //密码
'DB_NAME'=>'test', //数据库名称
'DB_PORT'=>'3306', //端口号
'DB_TYPE'=>'mysql', //数据库类型
'DB_CHARSET'=>'utf-8', //字符集
);?>";
private static $instance = null;
static function getInstance(){
if(self::$instance){
return self::$instance;
}else{
self::$instance = new buildDir();
return self::$instance;
}
}
public function __construct(){
}
//创建文件夹
public function buildFile($path = 'Home'){
//echo $path;
$this->path = $path;
if(!is_dir(EVENT)) mkdir(EVENT,0775,true);
if(is_writable(EVENT)){
$dirs = array(
EVENT."/".$path,
EVENT."/Public",
EVENT."/Config",
EVENT."/".$path."/Controller",
EVENT."/".$path."/Model",
EVENT."/".$path."/View",
EVENT."/".$path."/Cache",
);
foreach($dirs as $dir){
if(!is_dir($dir))
mkdir($dir,0775,true);
}
}
}
public function buildController()
{
$controller =EVENT."/".$this->path."/"."Controller";
if(is_dir(EVENT."/".$this->path))
if(!is_file($controller."/IndexController.class.php")){
$temp=$controller."/IndexController.class.php";
$myfile = fopen($temp,"w")or die("Unable to open file!");
fwrite($myfile,buildDir::$content);
}
}
public function buildConfig(){
$data = EVENT."/Config";
if(!is_file($data."/Config.php")){
$temp=$data."/Config.php";
$myfile = fopen($temp,"w")or die("Unable to open file!");
fwrite($myfile,buildDir::$config);
}
}
}
数据库的CURD操作
<?php
//数据库连接层
class DB{
static $link;
public function __construct($Config=array()){
//数据库连接层
if(count($Config)==0){
echo "数组为空";
}else{
$dsn=$Config['DB_TYPE'].':host='.$Config['DB_HOST'].';dbname='.$Config['DB_NAME'];
self::$link=new PDO($dsn,$Config['DB_USER'], $Config['DB_PWD']);
$this->table = $Config['DB_NAME']."_";
}
}
public function M($table){
$table = strtolower($table);
$this->table.= $table;
}
public function insert($data){
$table =$this->table;
global $key;
global $value;
foreach($data as $key_tmp =>$value_tmp){
$key.=$key_tmp.',';
$value.="'".$value_tmp."'".',';
}
$key=rtrim($key, ",");
$value=rtrim($value, ",");
$sql = "insert into ".$table."(".$key.")values(".$value.")";//sql的插入语句 格式：insert into 表(多个字段)values(多个值)
self::$link->query("SET NAMES utf8");
$result=self::$link->query($sql);//调用类自身的
//return $result;
}
public function update($data){
//$table =$this->table; // 指定数据的表
global $field;
foreach($data as $value=>$key){
$field.=$value."="."'".$key."'".",";
}
$field=rtrim($field,",");
echo $field."</br>";
$this->update = $field;
return $this;
//将数据存入到 this 中传志
// $sql="update ".$table." set ".$field." where ".$where."";
// echo $sql;
// self::$link->query("SET NAMES utf8");
// self::$link->query($sql);
}
public function where($where){
$sql="update ".$this->table." set ".$this->update." where ".$where."";
self::$link->query("SET NAMES utf8");
$result = self::$link->query($sql);
return $result;
}
public function select(){
self::$link->query("SET NAMES utf8");
$sql = "select * from ".$this->table;
$this->sql = $sql;
$rs = self::$link->query($sql);
$rs->setFetchMode(PDO::FETCH_ASSOC);//返回关联数组
$result = $rs -> fetchAll();
return $result;
//return $result;
}
public function delete($where){
$sql = "delete from ".$this->table." where ".$where."";//sql的插入语句 格式：insert into 表(多个字段)values(多个值)
self::$link->query($sql);//调用类自身的
}
// public function limit($limit){
// return "123";
// }
// public function execute($result = array()){
// var_dump($result);
// }
//魔术方法实现
public function __call($fun,$args){
if(in_array($fun,array("limit"，"getField","find"))){
echo $fun."</br>";
}
}
}
View层在之前的博客中有提到 链接：View层模板
模板主要是通过INDEX.PHP?moudle?=x&controller=x&method=x
之前考虑用伪静态来实现,后来无论如何接受不到参数就放弃了
代码如下：
$nav=$_SERVER["REQUEST_URI"];
// echo "request:".$nav."</br>";
// $script_name=$_SERVER["SCRIPT_NAME"];
// echo "script_name:".$script_name."</br>";
// $nav1 = str_replace($script_name,"",$nav);
// echo $nav1;
// $vars = @explode("/",$nav1);
//var_dump($vars);
// echo $script_name."</br>";
// echo substr(ereg_replace("$script_name","",urldecode($nav)),1);
// echo $script_name;
// $nav1=ereg_replace(".html","",substr(ereg_replace("$script_name","",urldecode($nav)),1));
// echo $nav1;
// $vars = @explode("/",$nav1);
// $_url = array_chunk($vars,3);
// $_GET['m'] = $vars[0]?$vars[0]:'index';
//如果没有参数，默认访问index类库的index方法
// $_GET['a'] = $vars[1]?$vars[1]:'index';
// $_GET['d'] = $vars[2]?$vars[2]:'index';
// unset($_url[0]);
// if($_url){
// foreach($_url as $key=>$val){
// @$_GET[$val[0]] = $val[1];
// }
// }
// var_dump($_GET);