start a restructure

Creational/Prototype/BarBookPrototype.php

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+<?php
+
+namespace DesignPatterns\Prototype;
+
+/**
+ * Class BarBookPrototype
+ */
+class BarBookPrototype extends BookPrototype
+{
+    /**
+     * @var string
+     */
+    protected $category = 'Bar';
+
+    /**
+     * empty clone
+     */
+    public function __clone()
+    {
+
+    }
+}

Creational/Prototype/BookPrototype.php

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+<?php
+
+namespace DesignPatterns\Prototype;
+
+/**
+ * class BookPrototype
+ */
+abstract class BookPrototype
+{
+    /**
+     * @var string
+     */
+    protected $title;
+
+    /**
+     * @var string
+     */
+    protected $category;
+
+    /**
+     * @abstract
+     * @return void
+     */
+    abstract public function __clone();
+
+    /**
+     * @return string
+     */
+    public function getTitle()
+    {
+        return $this->title;
+    }
+
+    /**
+     * @param string $title
+     */
+    public function setTitle($title)
+    {
+        $this->title = $title;
+    }
+}

Creational/Prototype/FooBookPrototype.php

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+<?php
+
+namespace DesignPatterns\Prototype;
+
+/**
+ * Class FooBookPrototype
+ */
+class FooBookPrototype extends BookPrototype
+{
+    protected $category = 'Foo';
+
+    /**
+     * empty clone
+     */
+    public function __clone()
+    {
+
+    }
+}

Creational/Prototype/README.md

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+# Prototype
+
+## Purpose
+
+To avoid the cost of creating objects the standard way (new Foo()) and instead create a prototype and clone it
+
+## Examples
+
+* Large amounts of data (e.g. create 1,000,000 rows in a database at once via a ORM)

Creational/Prototype/index.php

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+<?php
+
+namespace DesignPatterns\Prototype;
+
+$fooPrototype = new FooBookPrototype();
+$barPrototype = new BarBookPrototype();
+
+// now lets say we need 10,000 books of foo and 5,000 of bar ...
+for ($i = 0; $i < 10000; $i++) {
+    $book = clone $fooPrototype;
+    $book->setTitle('Foo Book No ' . $i);
+}
+
+for ($i = 0; $i < 5000; $i++) {
+    $book = clone $barPrototype;
+    $book->setTitle('Bar Book No ' . $i);
+}