SQL ORDER BY working in phpmyadmin but not in PHP web page

See more:

SQL

PHP

I have simple "SELECT" query on my mysql database table which I execute using php PDO and display the result on a web page.

The results show properly but when I query the statement in phpmyadmin,the order changes according to the query but the order is not affected in the web page generated by php and is always a constant order.

Below is my sample SQL statement:

SELECT * FROM `mytable` ORDER BY `mytable`.`column1` ASC

column1 is a column containing integer values.

Update:

Following is my sample code:

//connected to db successfully...
$a=$conn->prepare("SELECT * FROM `mytable` ORDER BY `mytable`.`columns1` ASC")
$a->execute();
while($b=$a->fetch(PDO::FETCH_ASSOC)){
    echo $b['column2'];
    //show results
}

Any help would be highly appreciated.
Thanks in advance.