PHP MSSQL Database Intigration SQLSRV Functions

$options = array( 'db_table' => 'files', 'db_name' => 'DB', 'db_user' => 'UserName', 'db_password' => 'Password' ); error_reporting(E_ALL | E_STRICT); require('UploadHandler.php');

class CustomUploadHandler extends UploadHandler {

protected function initialize() {
	$connectionInfo = array("UID" => $this->options['db_user'], "PWD" =>$this->options['db_password'], "Database"=>$this->options['db_name']);
	$serverName = "(local)";
	$conn=sqlsrv_connect( $serverName, $connectionInfo);
	if($conn) {
		$this->db = $conn;
	}else{
		/* Error logging for php-errors.log*/
		error_log(__FUNCTION__);
		error_log("Connection could not be established.");
		$err=print_r( sqlsrv_errors(), true);
    	error_log($err);
	}
    parent::initialize();
}

protected function handle_form_data($file, $index) {
	$file->title = @$_REQUEST['title'][$index];
	$file->description = @$_REQUEST['description'][$index];
}

protected function handle_file_upload($uploaded_file, $name, $size, $type, $error,
        $index = null, $content_range = null) {
    $file = parent::handle_file_upload(
    	$uploaded_file, $name, $size, $type, $error, $index, $content_range
    );
    if (empty($file->error)) {
		$sql = 'INSERT INTO '.$this->options['db_table']
			.' (name, size, type, title, description)'
			.' VALUES (?, ?, ?, ?, ?)';
			$params=array($file->name,
        	$file->size,
        	$file->type,
        	$file->title,
        	$file->description);
        $stmt = sqlsrv_query ($this->db,$sql,$params);
    		/* Error logging for php-errors.log*/
	        if( $stmt === false ) {
	        	error_log(__FUNCTION__);
	        	$err=print_r( sqlsrv_errors(), true);
	        	error_log($err);
	        	return die( print_r( sqlsrv_errors(), true));
	        }
		sqlsrv_next_result($stmt);
		sqlsrv_fetch($stmt);
		$file->id = sqlsrv_get_field($stmt, 0);
       	sqlsrv_free_stmt( $stmt);
    }
    return $file;
}

protected function set_additional_file_properties($file) {
    parent::set_additional_file_properties($file);
    if ($_SERVER['REQUEST_METHOD'] === 'GET') {
    	$sql = 'SELECT id, type, title, description FROM '
    		.$this->options['db_table'].' WHERE name=?';
    	$params=array($file->name);
    	$stmt = sqlsrv_query ($this->db,$sql,$params);
		if( $stmt === true ){
			while( $row = sqlsrv_fetch_array( $stmt, SQLSRV_FETCH_ASSOC)) {
				$file->id = $row['$id'];
        		$file->type = $row['$type'];
        		$file->title = $row['$title'];
        		$file->description = $row['$description'];
			}
			sqlsrv_free_stmt( $stmt);
		}
    }
}

public function delete($print_response = true) {
    $response = parent::delete(false);
    foreach ($response as $name => $deleted) {
    	if ($deleted) {
        	$sql = 'DELETE FROM '
        		.$this->options['db_table'].' WHERE name=?';
        	$params=array($file->name);
    		$stmt = sqlsrv_query ($this->db,$sql,$params);
    		sqlsrv_free_stmt( $stmt);
    	}
    } 
    return $this->generate_response($response, $print_response);
}

}

$upload_handler = new CustomUploadHandler($options);