私のデータベースには、いくつかのストアド プロシージャがあります。
そのうちの 1 つを呼び出したいのですが、この手順で得られた結果に従って、2 つ目のものを呼び出すかどうかを天気で判断します。
isUserValid()私が使用した方法でわかるように$result->free_results()
それでも、他のプロシージャを呼び出すと、次のようになります。Commands out of sync; you can't run this command now
これは、db 関数への呼び出しです。
/**
* Run a new query on the db.
* this will open an close the connection to the db
* @param $query string the query to run
* @param $verifyAccessToken boolean true if user validation is needed before query is executed, false otherwise
* @return bool|mysqli_result the result of the query if any or true or false in a non query
* @throws Exception on connection and query errors
*/
private function queryDb($query,$verifyAccessToken)
{
// if ($this->test)
// echo $query . "<br>";
//create a new mysqli connection
$mysqli = new mysqli($this->DB_HOST, $this->DB_USER, $this->DB_PASS, $this->DB_NAME);
//set the charset for the connection
if (!$mysqli->set_charset("utf8"))
{
$mysqli->close();
throw new Exception ("Error setting UTF 8 DB connection");
}
//check if the connection was ok
if (mysqli_connect_errno())
{
$mysqli->close();
throw new Exception("Error connecting DB");
}
//if verification is needed - verify access token
if ($verifyAccessToken && !$this->isUserValid($mysqli))
{
$mysqli->close();
throw new Exception(ACCESS_TOKEN_INCORRECT);
}
//get results
$result = $mysqli->query($query);
//check if there were now error in query. if so - throw an exception
if (!$result)
{
$mysqlError = $mysqli->error . __LINE__;
//close the connection
$mysqli->close();
throw new Exception ("mySQL Error: " . $mysqlError);
}
//fetch the results into an array
$rows = $result->fetch_all(MYSQLI_BOTH);
//close the connection
$result->close();
$result->free();
$mysqli->close();
//return the results if any
return $rows;
}
/**
* Check if user is valid
* @param $mysqli mysqli connection to db
* @return true if user is valid, false otherwise
*/
function isUserValid($mysqli)
{
//Check if there is a saved access token. if not - throw an exception
if (is_null($this->user) || $this->user->getPicoAccessToken() == null)
throw new Exception(ACCESS_TOKEN_INCORRECT);
//get user details
$facebookId = $this->user->getFacebookId();
$picoAccessToken = $this->user->getPicoAccessToken();
//create verification query
$verificationQuery = "Call isUserValid('$facebookId','$picoAccessToken')";
//execute query
$result = $mysqli->query($verificationQuery);
//if query had error - throw exception
if (!$result)
{
$mysqlError = $mysqli->error . __LINE__;
//close the connection
$mysqli->close();
throw new Exception ("mySQL Error: " . $mysqlError);
}
$rows = $result->fetch_all(MYSQLI_ASSOC);
$rows = $rows[0];
$result->free_result();
//return user valid status
return isset($rows["isUserValid"]) && $rows["isUserValid"] == 1;
}