[Solved]-Extract data series from a JSON array for a Highcharts chart with 2 y-axis-Highcharts

You might want to add json as the 4th argument of your $.post to get the JSON parsed as an object, more info here: jQuery.post().

$.post('getData.php', {b: begin,e: end}, function(data){

}, 'json');

Reading your code tells us the structure of your data is as follows:

Array (
    [0] => Array
        (
            [name] => V
            [data] => Array
                (
                    [0] => Array
                        (
                            [0] => value of $dateTimer1
                            [1] => value of $row['v1']

Therefore the data series are:

• data[0][data] for V.
• data[1][data] for Speed.

Therefore:

chart.series[0].setData( data[0][data] );
chart.series[1].setData( data[1][data] );

When in doubt about a structure, simply print it out:

• print_r($data); in PHP.
• console.log(data); in JavaScript.