Merge branch 'release/2.1.0'

Conflicts:
	user_guide/helpers/url_helper.html

2 files changed, 12 insertions, 3 deletions

diff --git a/system/libraries/Cache/drivers/Cache_apc.php b/system/libraries/Cache/drivers/Cache_apc.php
index de75719c4..79d91b320 100644
--- a/system/libraries/Cache/drivers/Cache_apc.php
+++ b/system/libraries/Cache/drivers/Cache_apc.php
@@ -132,7 +132,7 @@ class CI_Cache_apc extends CI_Driver {
 	 */
 	public function is_supported()
 	{
-		if ( ! extension_loaded('apc') OR ! function_exists('apc_store'))
+		if ( ! extension_loaded('apc') OR ini_get('apc.enabled') != "1")
 		{
 			log_message('error', 'The APC PHP extension must be loaded to use APC Cache.');
 			return FALSE;
@@ -148,4 +148,4 @@ class CI_Cache_apc extends CI_Driver {
 // End Class
 
 /* End of file Cache_apc.php */
-/* Location: ./system/libraries/Cache/drivers/Cache_apc.php */
\ No newline at end of file
+/* Location: ./system/libraries/Cache/drivers/Cache_apc.php */
diff --git a/system/libraries/Cache/drivers/Cache_memcached.php b/system/libraries/Cache/drivers/Cache_memcached.php
index ec2fd216a..fc586e025 100644
--- a/system/libraries/Cache/drivers/Cache_memcached.php
+++ b/system/libraries/Cache/drivers/Cache_memcached.php
@@ -64,7 +64,16 @@ class CI_Cache_memcached extends CI_Driver {
 	 */
 	public function save($id, $data, $ttl = 60)
 	{
-		return $this->_memcached->add($id, array($data, time(), $ttl), $ttl);
+		if (get_class($this->_memcached) == 'Memcached')
+		{
+			return $this->_memcached->set($id, array($data, time(), $ttl), $ttl);
+		}
+		else if (get_class($this->_memcached) == 'Memcache')
+		{
+			return $this->_memcached->set($id, array($data, time(), $ttl), 0, $ttl);
+		}
+		
+		return FALSE;
 	}
 
 	// ------------------------------------------------------------------------