JSON data not in proper format : fetching from mysql

Question

<?php
 require 'dbinfo.php'; 
 try {
 $db = new PDO($dsn, $username, $password);
 $db->setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION ); 
 $sth = $db->query("SELECT * FROM user_tracks");
 $loc = $sth->fetchAll(); 
 $locations = array_values($loc);
 echo json_encode( array("user"=>( $locations )));
 } catch (Exception $e) {
 echo $e->getMessage();
 }
?>

The code should return:

{"user":[{"id":"1","Latitude":"12.9555033333","Longitude":"80.2461883333","Time":"06:32:57","Date":"2012-03-13","Speed":"0","Course":"183.92"},{...},{....}]}

when it is returning:

{"user":[{"id":"1","0":"1","Latitude":"12.9555033333","1":"12.9555033333","Longitude":"80.2461883333","2":"80.2461883333","Time":"06:32:57","3":"06:32:57","Date":"2012-03-13","4":"2012-03-13","Speed":"0","5":"0","Course":"183.92","6":"183.92"},{...},{....}]}

I'm unsure of what happening... Where is the problem here?

Thanks in advance!

Answer 1

fetchAll() returns both (note the 'fetch_style' argument comments/notes) string and numerically keyed data from the query results by default. If you want the string version only, you have to do

$loc = $sth->fetchAll( PDO::FETCH_CLASS );

• ZzzZZz: It works! Its the other way.. fetchAll(PDO::FETCH_CLASS); Thanks for the help!