Merged in bugfix/PMC-1446 (pull request #7164)

PMC-1446 PHP Warning: count(): Parameter must be an array or an object that implements Countable

Approved-by: Julio Cesar Laura Avendaño <contact@julio-laura.com>

thirdparty/pear/DB.php

@@ -610,7 +610,7 @@ class DB
             $parsed['dbsyntax'] = $str;
         }
 
-        if (!count($dsn)) {
+        if (!is_string($dsn)) {
             return $parsed;
         }