問題の次のコードは、常に、ected_rows が 0 であることを記録します。DB を確認すると、行は毎回正常に更新されます。なぜ0なのですか?
public static function updateNextRunTime($nextRunTime)
{
$mysqli = new mysqli(GDB_HOST, GDB_USERNAME, GDB_PASSWORD, GDB_NAME);
if ($mysqli->connect_errno)
{
throw new Exception('DB Connection Failed. Error Code: ' . $mysqli->connect_errno);
}
$cmd = $mysqli->prepare("UPDATE balanceagent SET NextRunTime = ? WHERE Id = 1");
if (!$cmd)
{
throw new Exception($mysqli->error);
}
$cmd->bind_param('s', $nextRunTime);
$cmd->execute();
$rows = $mysqli->affected_rows;
$cmd->close();
$mysqli->close();
if ($rows != 1)
{
logToFile("Balance Agent Error - Failed to update the next run time! - Affected rows: " . $rows);
}
}