Hi what is the prob with this small file?

Hi friend, I am getting null values (0) for the following program. what will be the problem? Any help greatly appreciable!!!!!! example.php =========================================== <?php // Connect to MySQL $connection = mysql_connect( 'localhost', 'balaji', 'pingpong' ); // Select database on MySQL server mysql_select_db( 'amerm' ) or die ( 'Unable to select database.'.mysql_error()); // Formulate the queries $sql1="select UNIX_TIMESTAMP('start_date') startdate,UNIX_TIMESTAMP('end_date') enddate from request where req_status='Approved'"; $result1=mysql_query($sql1) or die ('Error in sql1'.mysql_error()); $n=mysql_numrows($result1); echo 'number of rows:'.$n; while($row=mysql_fetch_object($result1)) { echo 'starttime'.$row->startdate.'endtime'.$row->enddate; } mysql_close($connection); ?> ============================================= I am getting values printed is 0. Actually UNIX_TIMESTAMP(2001:03:21 10:45:00) means what? What it returns? Thanks in advance Balaji

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