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How to Extended class in PHP

How to Extended class in PHP




An extended class is always dependent on a single base class, that is, multiple inheritance is not supported. Classes are extended using the keyword 'extends'. This is also called a "parent-child" relationship. You create a class, parent, and use extends to create a new class based on the parent class: the child class.



<html>
  <head>
    <title>The Shape of Things to Come</title>
  </head>
  <body>
    <p>
      <?php
        class Shape {
          public $hasSides = true;
        }
        
        class Square extends Shape 
        {
         public  $hassides = true;
        }
        
        $square = new Square();
        
        // Add your code below!
        if (property_exists($square, "hassides"))
        {
          echo "I have sides!";
        }
      ?>
    </p>
  </body>
</html>
How to Extended class in PHP Reviewed by Rajat Jha on 23:34:00 Rating: 5

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