title: Want to extend a PHP class from two classes one of which is abstract
body: <p>Can I extend a PHP class from two classes, one of which is abstract and other one is not?
  like:</p>
  
  <pre><code>class customer extends SomeControllerClass implements SomeAbstractClass {
  ...
  }
  </code></pre>
  
  <p>the reason to do is that I have my commonly used functions and logic in the abstract class.</p>