bitlyfied · January 30, 2011 19:31 · Jan 30, 2011 · Jan 30, 2011
diff --git a/module-pattern.php b/module-pattern.php
@@ -74,4 +74,4 @@ public static function execute(Closure $closure) {
 
 echo $dialogsModule->publicName . '<br/>'; // Echo: Mickey Mouse
 $dialogsModule->sayHello(); // Echo: hi<br/>hello
-$dialogsModule->sayName(); // Echo: hi<br/>hello
+$dialogsModule->sayName(); // Echo: My public name is: Micket Mouse <br/> My private name is: Piggy
diff --git a/curry.php b/curry.php
@@ -0,0 +1,21 @@
+<?php
+
+function curry() {
+    $curryArgs = func_get_args();
+    return function() use ($curryArgs){
+        $function = array_shift($curryArgs);
+        $mergedArgs = array_merge($curryArgs, func_get_args());
+        return call_user_func_array($function, $mergedArgs);
+    };
+}
+
+
+$multiply = function($x, $y) {
+    return $x * $y;
+};
+
+$multiplyBy4 = curry($multiply, 4);
+
+echo $multiplyBy4(2); // Echo: 8
+
+
diff --git a/memoization.php b/memoization.php
@@ -0,0 +1,48 @@
+<?php
+
+class DynamicClosure {
+    public static function execute(Closure $closure) {
+        return call_user_func($closure);
+    }
+}
+
+
+echo '<br/>Standard factorial<br/>';
+
+function factorial($n) {
+    echo 'call <br/>';
+    if ($n == 0) {
+        return 1;
+    } else {
+        return $n * factorial($n - 1);
+    }
+}
+
+echo factorial(10) . '<br/>'; // called 11 times
+echo factorial(11) . '<br/>'; // called 12 times
+echo factorial(8)  . '<br/>'; // called 8 times
+
+echo '<br/>Memoized factorial<br/>';
+
+$memoizedFactorial = DynamicClosure::execute(function(){
+
+    // results are cached in an array
+    $results = array();
+
+    // the function is passing itself as a bound variable
+    return $factorial = function($n) use(&$results, &$factorial) {
+        echo 'call <br/>';
+        if (!isset($results[$n])) {
+            if ($n == 0) {
+                $results[$n] = 1;
+            } else {
+                $results[$n] = $n * $factorial($n - 1);
+            }
+        }
+        return $results[$n];
+    };
+});
+
+echo $memoizedFactorial(10) . '<br/>'; // called 11 times
+echo $memoizedFactorial(11) . '<br/>'; // called only 2 times!
+echo $memoizedFactorial(8) . '<br/>';  // called only 1 times!
diff --git a/module-pattern.php b/module-pattern.php
@@ -0,0 +1,77 @@
+<?php
+
+class DynamicObject {
+
+    /**
+     * @var DynamicObject
+     */
+    public $prototype;
+
+    public function __construct(array $attributes = array()) {
+        foreach ($attributes as $name => $value) {
+            $this->$name = $value;
+        }
+    }
+
+    public function __get($varName) {
+        if (!isset($this->$varName)) {
+            return $this->prototype->$varName;
+        }
+    }
+
+    public function __call($methodName, $params) {
+        array_unshift($params, $this);
+        if (isset($this->$methodName)) {
+            return call_user_func_array($this->$methodName, $params);
+        } else {
+            return call_user_func_array($this->prototype->$methodName, $params);
+        }
+    }
+
+    public static function extend(DynamicObject $prototype, $attributes = array()) {
+        $child = new self($attributes);
+        $child->prototype = $prototype;
+        return $child;
+    }
+
+    public static function execute(Closure $closure) {
+        return call_user_func($closure);
+    }
+
+}
+
+$dialogsModule = DynamicObject::execute(function() {
+
+    // private stuff
+    $self = new DynamicObject(array(
+        'privateName' => 'Piggy',
+
+        'addNewLine' => function($me) {
+            echo '<br/>';
+        }
+    ));
+
+    // public stuff
+    return new DynamicObject(array(
+        'publicName' => 'Mickey Mouse',
+
+        'sayHello' => function($me) use(&$self) {
+            echo 'hi';
+            $self->addNewLine();
+            echo 'hello';
+            $self->addNewLine();
+        },
+
+        'sayName' => function($me) use(&$self) {
+            echo 'My public name is:' . $me->publicName;
+            $self->addNewLine();
+            echo 'My private name is:' . $self->privateName;
+            $self->addNewLine();
+        }
+    ));
+});
+
+
+echo $dialogsModule->publicName . '<br/>'; // Echo: Mickey Mouse
+$dialogsModule->sayHello(); // Echo: hi<br/>hello
+$dialogsModule->sayName(); // Echo: hi<br/>hello
diff --git a/prototypal-inheritance.php b/prototypal-inheritance.php
@@ -0,0 +1,72 @@
+<?php
+
+class DynamicObject {
+
+    /**
+     * @var DynamicObject
+     */
+    public $prototype;
+
+    public function __construct(array $attributes = array()) {
+        foreach ($attributes as $name => $value) {
+            $this->$name = $value;
+        }
+    }
+
+    public function __get($varName) {
+        if (!isset($this->$varName)) {
+            return $this->prototype->$varName;
+        }
+    }
+
+    public function __call($methodName, $params) {
+        array_unshift($params, $this);
+        if (isset($this->$methodName)) {
+            return call_user_func_array($this->$methodName, $params);
+        } else {
+            return call_user_func_array($this->prototype->$methodName, $params);
+        }
+    }
+
+    public static function extend(DynamicObject $prototype, $attributes = array()) {
+        $child = new self($attributes);
+        $child->prototype = $prototype;
+        return $child;
+    }
+
+}
+
+$animal = new DynamicObject(array(
+            'age' => 0,
+            'name' => 'El Barto',
+            'breathe' => function($me) {
+                echo $me->name . " is breathing<br/>";
+            }
+        ));
+
+
+$animal->breathe(); // Echo: El Barto is breathing
+
+///////////////////////////////////////////////////////////////////////////////
+// Prototypal inheritance: an object extend another object
+//
+
+$cat = DynamicObject::extend($animal, array(
+            'breathe' => function($me) {
+                echo $me->name . " is purring<br/>";
+            }
+        ));
+
+$cat->breathe(); // Echo: El Barto is purring
+
+
+// Modifyng the prototype dynamically change the child too
+
+$animal->eat = function($me){
+    echo 'Gnam!<br/>';
+};
+
+$cat->eat(); // Echo: Gnam
+
+
+