Added a collection object

Author: paquettg

src/PHPHtmlParser/Dom/Collection.php

@@ -0,0 +1,87 @@
+<?php
+namespace PHPHtmlParser\Dom;
+
+use IteratorAggregate;
+use ArrayIterator;
+use ArrayAccess;
+use Countable;
+
+class Collection implements IteratorAggregate, ArrayAccess, Countable {
+	
+	/**
+	 * The collection of Nodes.
+	 *
+	 * @param array
+	 */
+	protected $collection = [];
+
+	/** 
+	 * Returns the count of the collection.
+	 *
+	 * @return int
+	 */
+	public function count()
+	{
+		return count($this->collection);
+	}
+
+	/** 
+	 * Returns an iterator for the collection.
+	 *
+	 * @return ArrayIterator
+	 */
+	public function getIterator()
+	{
+		return ArrayIterator($this->collection);
+	}
+
+	/**
+	 * Set an attribute by the given offset
+	 *
+	 * @param mixed $offset
+	 * @param mixed $value
+	 */
+    public function offsetSet($offset, $value) 
+    {
+        if (is_null($offset)) 
+        {
+            $this->collection[] = $value;
+        } 
+        else 
+        {
+            $this->collection[$offset] = $value;
+        }
+    }
+
+	/**
+	 * Checks if an offset exists.
+	 *
+	 * @param mixed $offset
+	 * @return bool
+	 */
+    public function offsetExists($offset) 
+    {
+        return isset($this->collection[$offset]);
+    }
+
+	/**
+	 * Unset a collection Node.
+	 *
+	 * @param mixed $offset
+	 */
+    public function offsetUnset($offset) 
+    {
+        unset($this->collection[$offset]);
+    }
+
+	/**
+	 * Gets a node at the given offset, or null
+	 *
+	 * @param mixed $offset
+	 * @return $offset
+	 */
+    public function offsetGet($offset) 
+    {
+        return isset($this->collection[$offset]) ? $this->collection[$offset] : null;
+    }
+}

src/PHPHtmlParser/Selector.php

@@ -1,6 +1,8 @@
 <?php
 namespace PHPHtmlParser;
 
+use PHPHtmlParser\Dom\Collection;
+
 class Selector {
 
    	/** 
@@ -41,7 +43,7 @@ public function getSelectors()
 	 */
 	public function find($node)
 	{
-		$results = [];
+		$results = new Collection;
 		foreach ($this->selectors as $selector)
 		{
 			$nodes = [$node];