first commit of 2.0

laravel/memcached.php

@@ -0,0 +1,55 @@
+<?php namespace Laravel;
+
+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))
+		{
+			static::$instance = static::connect(Config::get('cache.servers'));
+		}
+
+		return static::$instance;
+	}
+
+	/**
+	 * Connect to the configured Memcached servers.
+	 *
+	 * @param  array     $servers
+	 * @return Memcache
+	 */
+	private static function connect($servers)
+	{
+		if ( ! class_exists('Memcache'))
+		{
+			throw new \Exception('Attempting to use Memcached, but the Memcached PHP extension is not installed on this server.');
+		}
+
+		$memcache = new \Memcache;
+
+		foreach ($servers as $server)
+		{
+			$memcache->addServer($server['host'], $server['port'], true, $server['weight']);
+		}
+
+		if ($memcache->getVersion() === false)
+		{
+			throw new \Exception('Memcached is configured. However, no connections could be made. Please verify your memcached configuration.');
+		}
+
+		return $memcache;
+	}
+
+}