PHP 7.4 compatibility issue fix: Passing the and parameters in reverse order to implode has been deprecated since PHP 7.4

Author: pathumhdes

lib/Doctrine/Export/Mysql.php

@@ -524,7 +524,7 @@ public function createSequence($sequenceName, $start = 1, array $options = array
         try {
             $query  = 'CREATE TABLE ' . $sequenceName
                     . ' (' . $seqcolName . ' BIGINT NOT NULL AUTO_INCREMENT, PRIMARY KEY ('
-                    . $seqcolName . ')) ' . implode($optionsStrings, ' ');
+                    . $seqcolName . ')) ' . implode(' ', $optionsStrings);
 
             $res    = $this->conn->exec($query);
         } catch(Doctrine_Connection_Exception $e) {