accessor testing

Koterov-php-training/methods_of_classes/index.php

@@ -25,7 +25,7 @@ echo "</br>";
 var_dump( $point->getY());
 echo "</br></br>";
 
-echo $point->distance();
+echo $point->distance;
 
 echo '<pre>';
 print_r($point);
@@ -53,4 +53,14 @@ $point->z = 5;
 
 echo '<pre>';
 print_r($point->listVariables());
-echo '</pre>';
+echo '</pre>';
+
+require_once ('rainbow.php');
+
+$rainbow = new Rainbow;
+echo $rainbow->yellow;
+echo "</br>";
+echo $rainbow->red;
+echo "</br>";
+echo $rainbow->unknown;
+echo "</br>";

Koterov-php-training/methods_of_classes/point.php

@@ -24,6 +24,15 @@ class Point
     // {
     //     $this->y = $y;
     // }
+
+    public function __get($key)
+    {
+        if ($key === 'distance') {
+            return sqrt($this->getX() ** 2 + $this->getY() ** 2);
+        } else {
+            return null;
+        }
+    }
     public function getX(): int
     {
         return $this->x;
@@ -32,15 +41,14 @@ class Point
     {
         return $this->y;
     }
-    public function distance(): float
-    {
-        return sqrt($this->getX() ** 2 + $this->getY() ** 2);
-    }
 
     public function listVariables(): array
     {
         return get_object_vars($this);
     }
 
-
+    public function __destruct()
+    {
+        echo 'Вызов деструктора <br />';
+    }
 }

Koterov-php-training/methods_of_classes/rainbow.php

@@ -0,0 +1,23 @@
+<?php
+
+class Rainbow
+{
+    private const COLORS = [
+    'red' => 'красный',
+    'orange'=> 'ранжевый',
+    'yellow'=> 'жёлтый',
+    'green'=> 'зелёный',
+    'blue'=> 'голубой',
+    'indigo'=> 'синий',
+    'violet'=> 'фиолетовый',
+    ];
+
+    public function __get(string $key): ?string
+    {
+        if (array_key_exists($key, Rainbow::COLORS)) {
+            return Rainbow::COLORS[$key];
+        } else {
+            return null;
+    }
+}
+}

cristmass-tree/index.php

@@ -2,5 +2,5 @@
 
 include_once ('tree.php');
 
-$cristmassTree = new Tree(15);
+$cristmassTree = new Tree(50);
 $cristmassTree->drawTree();