PHP code example of pfinal / leaf

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

pfinal / leaf example snippets

use Leaf\Route;
Route::get('/', function(){
    return 'Hello Leafphp!';
});

Route::post('foo', function(){
    return 'post only';
});

Route::any('bar', function(){
    return 'any';
});

Route::get('user/:id', function($id){
    return 'user id: ' . $id;
});

use Leaf\Request;
Route::any('foo', function(Request $request){
    $name = $request->get('name');
    return $name; // leaf
});

Leaf\Request
Leaf\Application

use Leaf\Url;
$url = Url::to('foo');                 /demo/web/foo
$url = Url::to('foo', ['id' => 1]);    /demo/web/foo?id=1
$url = Url::to('foo', true);           http://localhost/demo/web/foo

use Leaf\Request;
Route::any('test', function (Request $request) {

    //GET POST PUT DELETE HEAD ...
    $method =  $request->getMethod();
    
	$bool = $request->isMethod('post')    // post request
	$bool = $request->isXmlHttpRequest()  // ajax request

	$id = $request->get('id');   // $_POST['id'] or  $_GET['id']
	$arr = $request->all();      // $_POST + $_GET

});

use Leaf\View;
use Leaf\Response;
use Leaf\Json;
Route::any('/', function(){

    //string
    return 'Hello Leaf!';
    return new Response('Hello Leaf!');
    
    //view
    return View::render('home.twig'); // 输出views/home.twig模板中内容
    
    //json
    return Json::render(['status' => true, 'data' => 'SUCCESS']);
    return Json::renderWithTrue('SUCCESS');
    return Json::renderWithTrue('ERROR');
});

use Leaf\Redirect;
return Redirect::to('foo');                    // 跳转到 Url::to('foo') 
return Redirect::to('/');                      // 项目的根目录
return Redirect::to('http://www.example.com'); // 外部链接

namespace Middleware;
use Leaf\Request;
class TestMiddleware
{
    public function handle(Request $request, \Closure $next)
    {
        $id = $request->get('age');
        if ($id < 18) {
            return 'age error';
        }
        return $next($request);
    }
}

$app['test'] = 'Middleware\TestMiddleware';

use Leaf\Request;
Route::any('info', function (Request $request) {
    return $request->get('age');
}, 'test');

use Leaf\Request;
Route::group(['middleware' => 'test'], function () {

    Route::any('info', function (Request $request) {
        return $request->get('age');
    });

    //other route
});

use Leaf\Request;
public function handle(Request $request, \Closure $next)
{
    $response = $next($request);
    // your code ...
    return $response;
}

namespace Controller;
class SiteController
{
    public function home()
    {
        return 'Hello Leafphp!';
    }
}

Route::get('home','Controller\SiteController@home');

// src/Controller/UserController.php
/**
 * @Middleware auth
 */
class UserController
{
    /**
     * @Route user/info
     * @Method get
     */
    public function info()
    {
        // your code ...
    }
}

use Leaf\View;

// views/index.twig
return View::render('home.twig', [
    'name' => 'Leaf',
]);

// views/index.blade.php
return View::render('home', [
    'name' => 'Leaf',
]);

\Leaf\View::share('url', 'http://example.com');

$app->extend('twig', function ($twig, $app) {
    /** @var $twig \Twig_Environment */
    $twig->addFunction(new \Twig_SimpleFunction('count', function ($arr) use ($app) {
        return count($arr);
    }));
    return $twig;
});

src/
    FooBundle/           Bundle总目录
        FooBundle.php    Bundle类文件
        Controller/      控制器
        resources/       资源目录
            routes.php   路由文件
            views/       视图目录

// src/FooBundle/FooBundle.php
class FooBundle extends \Leaf\Bundle
{
}

$app->registerBundle(new \FooBundle\FooBundle());

return View::render('@FooBundle/home.twig');

php console make:bundle

$conn = DB::getConnection();

$conn->execute()             // 执行SQL(INSERT、UPDATE、DELETE)
$conn->query()               // 执行SQL(SELECT)
$conn->queryScalar()         // 执行SQL,查询单一的值(SELECT COUNT)
$conn->getLastInsertId()     // 返回自增id
$conn->beginTransaction()    // 开启事务
$conn->commit()              // 提交事务
$conn->rollBack()            // 回滚事务
$conn->getLastSql()          // 最近执行的SQL

$query = DB::table()

// DBQuery返回数据的方法:

$query->findOne()
$query->findByPk()
$query->findOneBySql()
$query->findAll()
$query->findAllBySql()
$query->count()
$query->paginate($pageSize)

//DBQuery连惯操作方法，返回DBQuery对象:

$query->where()
$query->whereIn()
$query->limit()
$query->offset()
$query->orderBy()
$query->asEntity()
$query->lockForUpdate()
$query->lockInShareMode()

//分块操作
$query->chunk()
$query->chunkById()

$query = DB::select('user')->where($condition, $params);

$page = new Pagination();
$queryCount = clone $query;
$page->itemCount = $queryCount->count();

$query->limit($page->limit)->findAll();

use Leaf\Session;

//设置Session
Session::set('username', 'Jack');

//获取Session
$username = Session::get('username');

//删除Session
Session::remove('username');

//获取Session,如果不存在,使用`guest`作为默认值
$username = Session::get('username', 'guest');

//设置闪存数据
Session::setFlash('message', 'success');

//是否有闪存数据
$bool = Session::hasFlash('message');

//获取闪存数据,闪存数据获取后将自动删除
$message = Session::getFlash('message');

$data = [
    'username' => 'jack',
    'email' => '[email protected]',
    'age' => '18',
    'info' => 'abc',
];

$rules = [
    [['username', 'email'], 'mpare', 'type' => 'number', 'operator' => '>=', 'compareValue' => 0],
    [['age'], 'compare', 'type' => 'number', 'operator' => '<=', 'compareValue' => 150],
];

$labels = [
    'username' => '用户名',
];

if (!Validator::validate($data, $rules, $labels)) {
    var_dump(Validator::getFirstError());
    var_dump(Validator::getErrors());
}

use Leaf\Exception\HttpException;

throw new HttpException(400, '您访问的页面不存在');
throw new HttpException(500, '服务器内部错误');

use Leaf\Log;

Log::debug("日志内容");
Log::info("日志内容");
Log::warning("日志内容");
Log::error("日志内容");

//注册
$app->register(new \Leaf\Provider\CaptchaProvider());

//生成验证码图片
\Leaf\Route::get('captcha', function (\Leaf\Application $app) {
    return $app['captcha']->create();
});

//表单中使用验证码
\Leaf\Route::any('show', function () {
    $html = <<<TAG
<form method="post" action="{{ url('validate') }}">
    <img src="{{ url('captcha') }}" onclick="this.src='{{ url('captcha') }}?refresh='+Math.random()" style="cursor:pointer" alt="captcha">
    <input name="code">
    <button type="submit">提交</button>
</form>
TAG;
    return View::renderText($html);
});

//提交表单时验证输入是否正确
\Leaf\Route::post('validate', function (\Leaf\Application $app, \Leaf\Request $request) {
    if ($app['captcha']->validate($request->get('code'))) {
        // 'success';
    } else {
        // 'Verification code is invalid.';
    }
});


// 显示指定内容验证码图片
$obj = new \Leaf\Provider\CaptchaProvider();

return $obj->create('1234');
        

use Leaf\UploadedFile;
$up = new UploadedFile($config);
if ($up->doUpload($name)) {
    //上传后的文件信息
    $file = $up->getFile();
}

use Service\Auth
Auth::onceUsingId($userId);
Auth::loginUsingId($userId);

Auth::getUser()
Auth::getId()

$app->register(new \Leaf\Auth\GateProvider(), ['gate.config' => ['authClass' => 'Service\Auth']]);

$app['gate'] = $app->extend('gate', function ($gate, $app) {

    /** @var $app \Leaf\Application */
    /** @var $gate \Leaf\Auth\Gate */

    //用户是否有执行某个task的权限
    $gate->define('task', function (\Entity\User $user, $taskCode) {
        // 判断权限
        if (xxx){
            return true;
        }else{
            return false;
        }
    });

    return $gate;
});

// 判断是否有权限
$bool = Auth::user()->can('task', $taskCode);

$app['Leaf\Pagination'] = function () {
    $page = new \Leaf\Pagination();
    $page->pageSize = 15;
    $page->prevPageLabel = '<span class="glyphicon glyphicon-chevron-left"></span>';
    $page->nextPageLabel = '<span class="glyphicon glyphicon-chevron-right"></span>';
    return $page;
};

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