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Editorial Team
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Asked: 2026-06-11T11:45:51+00:00

I have a database of website stat which recorded a user view. I’d like

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I have a database of website stat which recorded a user view. I’d like to read and export into JSON. I can do it but I’d like to re-write them into a given format. What should I do?

Expected JSON code: //originated from http://www.highcharts.com/samples/data/jsonp.php?filename=aapl-c.json&callback=?

callback(/* AAPL historical OHLC data from the Google Finance API */
[
/* Sep 2005 */
[1127088000000,52.64],
[1127174400000,53.19],
[1127260800000,52.11],
[1127347200000,51.90],
[1127433600000,53.20],
[1127692800000,53.84],
[1127779200000,53.44],
[1127865600000,51.08],
[1127952000000,52.34],
[1128038400000,53.61],
...
]);

Here is my code:

$sql_viewer="select sum(vwr_id) as num,vwr_date from car_viewer where vwr_tid='$_tid' group by year(vwr_date) desc, month(vwr_date) desc";
$result_viewer=mysql_db_query($dbname,$sql_viewer);
while($rec_viewer=mysql_fetch_array($result_viewer)){
    $_viewerDate=$rec_viewer['vwr_date'];
    $_viewerNum=$rec_viewer['num'];
    foreach($rec_viewer as $key=>$val){
        $arr[$key]=$val;
    }
    $main_arr[]=$arr;
}
echo json_encode($main_arr);

Result JSON:

[{"0":"221944676","num":"221944676","1":"2012-09-01 00:20:08","vwr_date":"2012-09-01 00:20:08"},{"0":"66772926","num":"66772926","1":"2012-08-09 23:35:04","vwr_date":"2012-08-09 23:35:04"},{"0":"609","num":"609","1":"2012-02-20 22:40:29","vwr_date":"2012-02-20 22:40:29"}]

The question is how can I re-write the result JSON into the expected format above?
Regards,

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1 Answer

  1. Editorial Team

    The problem with your code is that the inner arrays had both numeric and integer indexes. 

    $sql_viewer="select sum(vwr_id) as num,vwr_date from car_viewer where vwr_tid='$_tid' group by year(vwr_date) desc, month(vwr_date) desc";
$result_viewer=mysql_db_query($dbname,$sql_viewer);
while($rec_viewer=mysql_fetch_array($result_viewer)){
    $_viewerDate=$rec_viewer['vwr_date'];
    $_viewerNum= intval ( $rec_viewer['num'] );
    // Create an array with just integer indexes
    $main_arr[]=array(strtotime($_viewerDate) * 1000, $_viewerNum);
}

echo 'callback(' . json_encode($main_arr) . ');';

    , the code above makes the inner array have only integer indexes

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