我正在学习 oop 并尝试在此过程中实现 php 标准 PSR-0 和 PSR-1。我首先创建了一个基于 Swiftlet 的小型 MVC 框架。
我正在尝试从我从 url 调用的控制器中的基本视图控制器调用函数，并且我得到"在非对象上调用成员函数集（）"。
所有类加载正常。所以在我的控制器中，我调用$this->view->set（'helloWorld'， 'Hello world！'）;但我收到一个错误。我在尝试正确构建命名空间结构时遇到了一些麻烦，所以也许这就是原因？
以下是文件结构：
索引.php
库/引导程序.php
库/视图.php
库/控制器.php
应用/控制器/索引.php
这是每个代码：
索引.php
<?php
namespace MVC;
// Bootstrap the application
require 'lib/Bootstrap.php';
$app = new lib'Bootstrap;
spl_autoload_register(array($app, 'autoload'));
$app->run();
$app->serve();
引导程序.php
namespace MVC'lib;
class Bootstrap
{
protected
$action = 'index',
$controller,
$hooks = array(),
$view
;
/**
* Run the application
*/
function run()
{
... Code that gets controller and the action form the url
$this->view = new 'lib'View($this, strtolower($controllerName));
// Instantiate the controller
$controllerName = 'app'Controllers''' . basename($controllerName);
$this->controller = new $controllerName();
// Call the controller action
$this->registerHook('actionBefore');
if ( method_exists($this->controller, $this->action) ) {
$method = new 'ReflectionMethod($this->controller, $this->action);
if ( $method->isPublic() && !$method->isFinal() && !$method->isConstructor() ) {
$this->controller->{$this->action}();
} else {
$this->controller->notImplemented();
}
} else {
$this->controller->notImplemented();
}
return array($this->view, $this->controller);
}
<?php
namespace MVC'lib;
class Bootstrap
{
protected
$action = 'index',
$args = array(),
$config = array(),
$controller,
$hooks = array(),
$plugins = array(),
$rootPath = '/',
$singletons = array(),
$view
;
/**
* Run the application
*/
function run()
{
// Determine the client-side path to root
if ( !empty($_SERVER['REQUEST_URI']) ) {
$this->rootPath = preg_replace('/(index'.php)?('?.*)?$/', '', $_SERVER['REQUEST_URI']);
if ( !empty($_GET['route']) ) {
$this->rootPath = preg_replace('/' . preg_quote($_GET['route'], '/') . '$/', '', $this->rootPath);
}
}
// Extract controller name, view name, action name and arguments from URL
$controllerName = 'Index';
if ( !empty($_GET['route']) ) {
$this->args = explode('/', $_GET['route']);
if ( $this->args ) {
$controllerName = str_replace(' ', '/', ucwords(str_replace('_', ' ', str_replace('-', '', array_shift($this->args)))));
}
if ( $action = $this->args ? array_shift($this->args) : '' ) {
$this->action = str_replace('-', '', $action);
}
}
if ( !is_file('app/Controllers/'. $controllerName . '.php') ) {
$controllerName = 'Error404';
}
$this->view = new 'lib'View($this, strtolower($controllerName));
// Instantiate the controller
$controllerName = 'app'Controllers''' . basename($controllerName);
$this->controller = new $controllerName();
// Call the controller action
$this->registerHook('actionBefore');
if ( method_exists($this->controller, $this->action) ) {
$method = new 'ReflectionMethod($this->controller, $this->action);
if ( $method->isPublic() && !$method->isFinal() && !$method->isConstructor() ) {
$this->controller->{$this->action}();
} else {
$this->controller->notImplemented();
}
} else {
$this->controller->notImplemented();
}
$this->registerHook('actionAfter');
return array($this->view, $this->controller);
}
<?php
namespace MVC'lib;
class Bootstrap
{
protected
$action = 'index',
$args = array(),
$config = array(),
$controller,
$hooks = array(),
$plugins = array(),
$rootPath = '/',
$singletons = array(),
$view
;
/**
* Run the application
*/
function run()
{
// Determine the client-side path to root
if ( !empty($_SERVER['REQUEST_URI']) ) {
$this->rootPath = preg_replace('/(index'.php)?('?.*)?$/', '', $_SERVER['REQUEST_URI']);
if ( !empty($_GET['route']) ) {
$this->rootPath = preg_replace('/' . preg_quote($_GET['route'], '/') . '$/', '', $this->rootPath);
}
}
// Extract controller name, view name, action name and arguments from URL
$controllerName = 'Index';
if ( !empty($_GET['route']) ) {
$this->args = explode('/', $_GET['route']);
if ( $this->args ) {
$controllerName = str_replace(' ', '/', ucwords(str_replace('_', ' ', str_replace('-', '', array_shift($this->args)))));
}
if ( $action = $this->args ? array_shift($this->args) : '' ) {
$this->action = str_replace('-', '', $action);
}
}
if ( !is_file('app/Controllers/'. $controllerName . '.php') ) {
$controllerName = 'Error404';
}
$this->view = new 'lib'View($this, strtolower($controllerName));
// Instantiate the controller
$controllerName = 'app'Controllers''' . basename($controllerName);
$this->controller = new $controllerName();
// Call the controller action
$this->registerHook('actionBefore');
if ( method_exists($this->controller, $this->action) ) {
$method = new 'ReflectionMethod($this->controller, $this->action);
if ( $method->isPublic() && !$method->isFinal() && !$method->isConstructor() ) {
$this->controller->{$this->action}();
} else {
$this->controller->notImplemented();
}
} else {
$this->controller->notImplemented();
}
$this->registerHook('actionAfter');
return array($this->view, $this->controller);
}
库/视图.php
namespace lib;
class View
{
protected
$app,
$variables = array()
;
public
$name
;
/**
* Constructor
* @param object $app
* @param string $name
*/
public function __construct($app, $name)
{
$this->app = $app;
$this->name = $name;
}
/**
* Set a view variable
* @param string $variable
* @param mixed $value
*/
public function set($variable, $value = null)
{
$this->variables[$variable] = $value;
}
最后是应用程序/控制器/索引.php
namespace app'Controllers;
class index extends 'lib'Controller
{
public function test()
{
// This gets the error
$this->view->set('helloWorld', 'Hello world!');
}
}
如果这是控制器中的所有代码，则$this->view不是对象。
尝试运行以下代码：
namespace app'Controllers;
class index extends 'lib'Controller
{
public function test()
{
var_dump( $this->view );
exit;
$this->view->set('helloWorld', 'Hello world!');
}
}
您还应该知道，在 PHP 中，__construct() 方法不是继承的。
我一定受了脑残。
哦..我不明白，为什么这个问题有mvc标签。当您尝试编写类似 MVC 的东西时，问题本身与作为架构模式的 MVC 无关。