构建自己的PHP框架--定义ORM的接口，构建php框架orm_PHP教程

<span>//</span><span> 选出id为1的一篇文章</span>
<span>$article</span> = Article::findOne(['id' => 1<span>]);

</span><span>//</span><span> 选出status是unpublished的所有文章</span>
<span>$articles</span> = Article::findAll(['status' => 'unpublished'<span>]);

</span><span>//</span><span> 将id为1的所有文章的status更新为published</span>
Article::updateAll(['id' => 2], ['status' => 'published'<span>]);

</span><span>//</span><span> 删除所有id为1的文章</span>
Article::deleteAll(['id' => 2<span>]);

</span><span>//</span><span> $article是之前选出的id为1的文章
// 更新它的属性status为unpublished</span>
<span>$article</span>->status = 'unpublished'<span>;
</span><span>//</span><span> 保存更新到数据库</span>
<span>$article</span>-><span>update();

</span><span>//</span><span> 删除该文章</span>
<span>$article</span>-><span>delete();

</span><span>//</span><span> 创建一个新文章</span>
<span>$article</span> = <span>new</span><span> Article();
</span><span>$article</span>->name = 'My first article'<span>;
</span><span>$article</span>->status = 'published'<span>;
</span><span>//</span><span> 将该文章保存到数据库中</span>
<span>$article</span>->insert();

<?<span>php
namespace sf\db;

</span><span>interface</span><span> ModelInterface
{
    </span><span>public</span> <span>static</span> <span>function</span><span> tableName();

    </span><span>public</span> <span>static</span> <span>function</span><span> primaryKey();

    </span><span>public</span> <span>static</span> <span>function</span> findOne(<span>$condition</span><span>);

    </span><span>public</span> <span>static</span> <span>function</span> findAll(<span>$condition</span><span>);

    </span><span>public</span> <span>static</span> <span>function</span> updateAll(<span>$condition</span>, <span>$attributes</span><span>);

    </span><span>public</span> <span>static</span> <span>function</span> deleteAll(<span>$condition</span><span>);

    </span><span>public</span> <span>function</span><span> insert();

    </span><span>public</span> <span>function</span><span> update();

    </span><span>public</span> <span>function</span><span> delete();
}</span>