我可以 "return" 来自 class 的两个对象用于我的路线发送到我的树枝模板吗？

Question

我是 slim PHP 微框架和 twig 模板系统的新手。

我想知道有没有什么方法可以从 PHP 函数中 "return" 两个对象，这样我的文章就不需要两个函数（例如 getArticle、getComments）？

我知道有一种方法可以用数组来做，但是有像我想做的那样用对象吗？见下文。

当前 class:

<?php
public function getArticle($id){
        $stmt = $this->app->engine->rows('SELECT null FROM articles WHERE id = :id', [':id' => $id]);

        if($stmt > 0){
            return $this->app->engine->testing('SELECT * FROM articles WHERE id = :id', [':id' => $id]);

        }else{
            return false;
        }
}
?>

我想要达到的目标：

<?php
public function getArticle($id){
        $stmt = $this->app->engine->rows('SELECT null FROM articles WHERE id = :id', [':id' => $id]);

        if($stmt > 0){
            $article = new stdClass();

            $article->main = $this->app->engine->testing('SELECT * FROM articles WHERE id = :id', [':id' => $id]);
            $article->comments = $this->app->engine->testing('SELECT * FROM articles_comments WHERE article_id = :id', [':id' => $id]);

            return 'both of the above to $article of route';

        }else{
            return false;
        }

}
?>

路线：

<?php
$app->get('/articles/:id', function ($id) use ($app) {
        $article = new stdClass();

        $article = $app->user->getArticle($id);
        $article->comments = $app->user->getComments($id);

        $app->render('article.html', ['article' => $article]);
});
?>

我想要达到的目标：

<?php
$app->get('/articles/:id', function ($id) use ($app) {
        $article = $app->user->getArticle($id);

        $article->main = 'use the returned $article->main';
        $article->comments = 'use the returned $article->comments';

        $app->render('article.html', ['article' => $article]);
});
?>

Twig 模板：

{{ article.main.title }}

{{ article.comments.message }}

Answer 1

您没有 2 个对象您有 1 个对象 $article 具有 2 个属性。只需 return $article;，它将具有 $article->main 和 $article->comments 属性：

$article = new stdClass();
$article->main = $this->app->engine->testing('SELECT * FROM articles WHERE id = :id', [':id' => $id]);
$article->comments = $this->app->engine->testing('SELECT * FROM articles_comments WHERE article_id = :id', [':id' => $id]);

return $article;

然后：

$article = $app->user->getArticle($id);

// print_r($article);
// $article->main and $article->comments are already part of $article

$app->render('article.html', ['article' => $article]);

我可以 "return" 来自 class 的两个对象用于我的路线发送到我的树枝模板吗？

Am I able to "return" two objects from a class for my route to send to my twig template?

php

oop

model-view-controller

slim

twig