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Learn how to build a PHP CRUD application using Object-Oriented Programming (OOP) principles and MySQL. This guide covers creating a solid folder structure, establishing a database connection, and implementing CRUD operations within a scalable and maintainable framework.

Building a PHP CRUD Application with OOP and MySQL: A Best Practice Guide

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Building a PHP CRUD Application with OOP and MySQL: A Best Practice Guide

Nice content but it doesn’t show the real benefits of OOP there.
Clear separation of concern, Liskov principles and clear object properties design.
<ol>
<li>Thinking about object responsibilities</li>
</ol>
Database should be coded through Interfaces or Abstract classes and injected maybe with DI.
If you are thinking about ORM models It would be highly benefitial to abstract DB connection/operations
<pre><code class="language-php">class Model 
{
 private $conn;
 protected $table;

 public function __construct()
 {
 $database = new Database();
 $this-&gt;conn = $database-&gt;connect();
 }

 public function create($name, $email)
 {
 $sql = &quot;INSERT INTO {$this-&gt;table} (name, email) VALUES (:name, :email)&quot;;
 $stmt = $this-&gt;conn-&gt;prepare($sql);
 $stmt-&gt;bindParam(&#x27;:name&#x27;, $name);
 $stmt-&gt;bindParam(&#x27;:email&#x27;, $email);
 return $stmt-&gt;execute();
 }
}
</code></pre>
<pre><code class="language-php">class User extends Model
{
 protected $table = &#x27;users&#x27;;
 }
</code></pre>
What about reduce duplication?
<pre><code class="language-php">class UserController
{
 private Model $model;
 public function __construct(Model $model)
 {
 $this-&gt;model = $model;
 }
 public function createUser($name, $email)
 {
 return $this-&gt;model-&gt;create($name, $email);
 }
}
</code></pre>
I built this game to get better at OOP, feel free to try it if you find it useful
<a href="https://github.com/arzola/oop-game" target="_blank" rel="noopener nofollow">https://github.com/arzola/oop-game</a>

very good , clear and simple as usual, the only objection i would bring up here is hard coding the database credentials into the code, which would be better to put separate from the code … or use a database engine that does not require them like SQLite , bit for the example / demonstration value, this is fine, wish all the examples on the internet where this good