Don't die on empty keys in MWMemcached

Bug: 64287
Change-Id: Iedfec96286212577a181b83957cdc4545be206d2

diff --git a/includes/objectcache/MemcachedClient.php b/includes/objectcache/MemcachedClient.php
index 9de840b..7990053 100644 (file)
--- a/includes/objectcache/MemcachedClient.php
+++ b/includes/objectcache/MemcachedClient.php
@@ -419,6 +419,12 @@ class MWMemcached {
                        $this->_debugprint( "get($key)\n" );
                }
 
+               if ( !is_array( $key ) && strval( $key ) === '' ) {
+                       $this->_debugprint( "Skipping key which equals to an empty string" );
+                       wfProfileOut( __METHOD__ );
+                       return false;
+               }
+
                if ( !$this->_active ) {
                        wfProfileOut( __METHOD__ );
                        return false;