我是PHP微框架的新手，也是小模板系统的新手。
我想知道是否有任何方法从PHP函数"返回"两个对象，以便我的文章不需要两个函数(例如:getArticle, getComments) ?
我知道有一种方法可以用数组做到这一点，但有像我想做的对象吗?见下文.
当前类:<?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' => $article]);
});
?>
枝模板:
{{ article.main.title }}
{{ article.comments.message }}
你没有两个对象，你有一个对象$article，它有两个属性。只有return $article;，它将具有$article->main和$article->comments的性质:
$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;
:
$article = $app->user->getArticle($id);
// print_r($article);
// $article->main and $article->comments are already part of $article
$app->render('article.html', ['article' => $article]);