1 files changed, 7 insertions, 0 deletions
diff --git a/program/lib/Roundcube/rcube_db_mysql.php b/program/lib/Roundcube/rcube_db_mysql.php
index b2cbab271..2d42610b6 100644
--- a/program/lib/Roundcube/rcube_db_mysql.php
+++ b/program/lib/Roundcube/rcube_db_mysql.php
@@ -34,6 +34,13 @@ class rcube_db_mysql extends rcube_db
      */
     protected function init()
     {
+        if (version_compare(PHP_VERSION, '5.3.0', '<')) {
+            rcube::raise_error(array('code' => 600, 'type' => 'db',
+                'line' => __LINE__, 'file' => __FILE__,
+                'message' => "MySQL driver requires PHP >= 5.3, current version is " . PHP_VERSION),
+                true, true);
+        }
+
         // SQL identifiers quoting
         $this->options['identifier_start'] = '`';
         $this->options['identifier_end'] = '`';