RedBeanPHP\Adapter\DBAdapter::getAssoc PHP Method

    public function getAssoc($sql, $bindings = array())
    {
        $this->sql = $sql;
        $this->signal('sql_exec', $this);
        $rows = $this->db->GetAll($sql, $bindings);
        $assoc = array();
        if (!$rows) {
            return $assoc;
        }
        foreach ($rows as $row) {
            if (empty($row)) {
                continue;
            }
            if (count($row) > 2) {
                $key = array_shift($row);
                $value = $row;
            } elseif (count($row) > 1) {
                $key = array_shift($row);
                $value = array_shift($row);
            } else {
                $key = array_shift($row);
                $value = $key;
            }
            $assoc[$key] = $value;
        }
        return $assoc;
    }

 /**
  * @see QueryWriter::wipeAll
  */
 public function wipeAll()
 {
     foreach ($this->getTables() as $t) {
         try {
             $foreignKeys = $this->adapter->getAssoc("SELECT\n\t\t\t\t    'ALTER TABLE ' +  OBJECT_SCHEMA_NAME(parent_object_id) +\n\t\t\t\t    '.[' + OBJECT_NAME(parent_object_id) +\n\t\t\t\t    '] DROP CONSTRAINT ' + name\n\t\t\t\tFROM sys.foreign_keys\n\t\t\t\tWHERE referenced_object_id = object_id('{$t}')");
             if (count($foreignKeys)) {
                 foreach ($foreignKeys as $sql) {
                     $this->adapter->exec($sql);
                 }
             }
             $this->adapter->exec("IF OBJECT_ID('[{$t}]', 'U') IS NOT NULL DROP TABLE [{$t}];");
         } catch (SQLException $e) {
         }
     }
 }