php - connection successful but 500 internal error while fetching data from sql server -

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this config file. connecting localhost using port forwarding using bit-vise ssh client connection success while excuting query there 500 internal server.

<?php try {     $hostname = "xx.xx.xx.xx";     $port = 2351;     $dbname = "otomax";     $username = "sa";     $pw = "root";     $dbh = new pdo("sqlsrv:server=$hostname,$port;database=$dbname","$username","$pw");   "connect"; } catch (pdoexception $e) {     "failed db handle:".$e->getmessage()."\n";     exit; } ?>

connection successful 500 internal error while fetching data server please me out

<?php include("config.php"); $id=$_session['kode']; $sql = "select * dbo.reseller kode='$id'"; $query = $db->prepare( $sql ); $query->execute(); $result = $query->fetchall( pdo::fetch_assoc ); ?>

please see code , me out


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