title: How to declare abstract method in non-abstract class in PHP?
body: <pre><code>class absclass {
      abstract public function fuc();
  }
  </code></pre>
  
  <p>reports:</p>
  
  <blockquote>
    <p>PHP Fatal error:  Class absclass
    contains 1 abstract method and must
    therefore be declared abstract or
    implement the remaining methods
    (absclass::fuc)</p>
  </blockquote>
  
  <p>I want to know what it means by <strong>implement the remaining methods</strong>,how?</p>