ca & dog classes for autoload

week-15/simple-classes/cat.class.php

+<?
+/* Cat class extends Pet.
+ * Cat overrides play().
+ */
+class Cat extends Pet {
+    function play() {
+    
+        // Call the Pet::play() method:
+        parent::play();
+    
+        echo "<p>$this->name is climbing.</p>";     
+    }
+} // End of Cat class.
+
+
+?>

week-15/simple-classes/dog.class.php

+<?
+/* Dog class extends Pet.
+ * Dog overrides play().
+ */
+class Dog extends Pet {
+    function play() {
+    
+        // Call the Pet::play() method:
+        parent::play();
+    
+        echo "<p>$this->name is fetching.</p>";
+    }
+} // End of Dog class.
+
+
+
+?>

week-15/simple-classes/pet.class.php

+<?
+class Pet {
+    public $name;
+    function __construct($pet_name) {
+        $this->name = $pet_name;
+        self::sleep();
+    }
+    function eat() {
+        echo "<p>$this->name is eating.</p>";
+    }
+    function sleep() {
+        echo "<p>$this->name is sleeping.</p>";
+    }
+    function play() {
+        echo "<p>$this->name is playing.</p>";
+    }
+} // End of Pet class.
+?>
+