initial commit of laravel!

system/memcached.php

@@ -0,0 +1,56 @@
+<?php namespace System;
+
+class Memcached {
+
+	/**
+	 * The Memcache instance.
+	 *
+	 * @var Memcache
+	 */
+	private static $instance = null;
+
+	/**
+	 * Get the singleton Memcache instance.
+	 *
+	 * @return Memcache
+	 */
+	public static function instance()
+	{
+		if (is_null(static::$instance))
+		{
+			// -----------------------------------------------------
+			// Verify that the Memcache extension is installed.
+			// -----------------------------------------------------
+			if ( ! class_exists('Memcache'))
+			{
+				throw new \Exception('Attempting to use Memcached, but the Memcached PHP extension is not installed on this server.');
+			}
+
+			// -----------------------------------------------------
+			// Instantiate the Memcache class.
+			// -----------------------------------------------------
+			$memcache = new \Memcache;
+
+			// -----------------------------------------------------
+			// Configure the Memcache servers.
+			// -----------------------------------------------------
+			foreach (Config::get('cache.servers') as $server)
+			{
+				$memcache->addServer($server['host'], $server['port'], true, $server['weight']);
+			}
+
+			// -----------------------------------------------------
+			// Verify Memcache was configured successfully.
+			// -----------------------------------------------------
+			if ($memcache->getVersion() === false)
+			{
+				throw new \Exception('Memcached is configured. However, no connections could be made. Please verify your memcached configuration.');
+			}
+
+			static::$instance = $memcache;
+		}
+
+		return static::$instance;
+	}
+
+}