如何在Doctrine2中使用预准备语句截断表

I'm doing:

    $truncateSQL = 'TRUNCATE TABLE :tableName';
    $stmtTruncate = $em->getConnection()->prepare($truncateSQL);
    $stmtTruncate->bindValue('tableName',$this->tableName);
    $stmtTruncate->execute();

But getting the error:

[PDOException]                                                                                                       
  SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that  
   corresponds to your MySQL server version for the right syntax to use near ''image_sizes_t'' at line 1     

Are the quotes round the table name the problem here? $this->tableName is just a string

You can't use table or column names in as placeholders in prepared statements as 'table_name' is invalid MySql syntax.

if you need to make your column / table names safe you can wrap them in backticks.

 "`".$table_name."`"