我的查询有点像这样：

CREATE FUNCTION func ... ;
SELECT * FROM  ....;

我使用的是php的PDO，它不允许在$pdo->query()中有超过1个语句，所以我决定将查询分为两个，所以我使用$pdo->exec()执行CREATE FUNCTION查询，然后在select语句上使用$pdo->query()。
但是，我在执行select语句FUNCTION database.func does not exist时遇到错误。我该怎么解决这个问题？当我在phpmyadmin中将其作为单个查询运行时，它工作正常
编辑：PHP代码：

class MyClass {
function connectPDO($user,$pass,$chartset="utf8"){
    //simple function for making a new PDO object and mysql connection
    $dbname = "my_db";
    try {
        //creating new pdo
        $pdo = new PDO('mysql:host=localhost;dbname='.$dbname, $user,$pass);
        //attributes set to throw errors and exceptions which can be caught, can be changed
        $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
        //fetch associative arrays
        $pdo->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE,PDO::FETCH_ASSOC);
        //default chartset
        $pdo->exec('SET NAMES "'.$chartset.'"');
      } catch (PDOException $e) {
        //on some error
        $output = "Ay caramba! there's something wrong here!.<br>";
        echo $output.$e->getMessage();
        exit();
    }

    $this->db = $pdo;
}
}

$object = new MyClass();
$object->connectPDO("user","pass");
$sqlPreliminary = "
        DROP FUNCTION IF EXISTS myFunc;
        DELIMITER //

        CREATE FUNCTION myFunc (id INT)
            RETURNS DECIMAL

            BEGIN
            RETURN id + 1;
            END //
        DELIMITER ;

";

$sqlFinal = "
    SELECT id, myFunc(id) AS plusOne  FROM table;
";
$object->db->exec($sqlPreliminary);
var_dump($object->db->query($sqlFinal)->fetchAll(PDO::FETCH_ASSOC));