"The connection was reset" in PHP-PDO - php

Question

I am trying to access SQL Window Server from Linux (ubuntu 12.04) server by PHP PDO extension, but showing me "The connection was reset" from the browser.
Code is -
try {
self::$instance = new PDO('odbc:Driver=FreeTDS; Server=192.168.0.21; Port=1433; Database=MSSQLTips; UID=XXXX; PWD=XXXXX');
self::$instance->setAttribute(PDO::ATTR_PERSISTENT, true);
self::$instance->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
} catch (PDOException $exception) {
trigger_error($error->getMessage());
}
And the access code is
$query = 'SELECT * FROM tblEmployee where Employee_Id = ?';
$sth = $this->db->prepare($query);
$sth->execute(array('1557'));
$result = $sth->fetch();
echo "<pre>"; print_r($result); die;

Answer 1

This is a known bug in PHP. Refer to bug report 64483 for more information.
As an alternative to pdo_odbc you can use the pdo_dblib driver to access a MS SQL Server from PHP on Linux. Refer to the PHP documentation on pdo_dblib
I have adjusted your code to use dblib.
try {
self::$instance = new PDO ("dblib:host=192.168.0.21:1433;dbname=MSSQLTips","XXXX","XXXXX");
self::$instance->setAttribute(PDO::ATTR_PERSISTENT, true);
self::$instance->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
} catch (PDOException $ex) {
$msg = htmlentities($ex->getMessage());
trigger_error($msg);
}
And then:
$query = 'SELECT * FROM tblEmployee where Employee_Id = ?';
$sth = $this->db->prepare($query);
$sth->bindValue(1, "1557", PDO::PARAM_INT);
$sth->execute();
$result = $sth->fetchAll();
if($result === false) {
throw new Exception("Unable to fetch result.");
}
try {
echo "<pre>";
print_r($result);
echo "</pre>";
} catch (Exception $ex) {
$msg = htmlentities($ex->getMessage());
trigger_error($msg,E_WARNING);
}