Passing Two JavaScript Arrays to PHP

Question

I need to get the distance between two points from JavaScript to PHP using Google Maps. Below is my function to get the distance and post no problems. Now, how can I send the arrays (i.e. volunteerDist and tvid) to another php file (i.e. distanceToDb.php) and what should be the code of my distanceToDb.php to get these data? Thanks! Actual codes is highly appreciated.

<?php
    function getFDistance(lat, lng, vlat, vlng, vid) {
        var eventlocation = new GLatLng(lat, lng);
        var volunteerDist = new Array();
        var tvid          = new Array();
        var volunteerlocation;

        for(i=0;i<lat.length;i++) {
            tvid[i] = vid[i];
            volunteerlocation = new GLatLng(vlat[i], vlng[i]);
            volunteerDist[i] = (Math.round((eventlocation.distanceFrom(volunteerlocation) / 1000)*10)/10);
        }
        $.ajax({
            type: 'POST',
            url: "distanceToDb.php",
            data: {tvid: tvid, volunteerDist: volunteerDist},
            success: function(data){
                alert("Successful");
            },
            dataType: "json"
        });
    }
?>

something's bugging me there... you have JS code inside PHP tags ? — SirDarius
– SirDarius, Commented Mar 15, 2012 at 11:43

Overkillica · Accepted Answer · 2012-03-14 18:28:11Z

1

I've passed arrays and objects using JSON in javascript, let's say through a jquery.post call:

$.ajax({
    type: 'POST',
    url: "distanceToDb.php",
    data: {tvid: tvid, volunteerDist: volunteerDist},
    success: successfunction,
    dataType: "json"

});

Then, in the php file you just do this:

$js_data_arr = json_decode($_POST['data']);

edited Mar 14, 2012 at 18:28

answered Mar 14, 2012 at 7:00

Overkillica

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14 Comments

Brandon Young Over a year ago

in my code's case, what specific line should I add? do i still need the location.href?

Overkillica Over a year ago

Nope, actually instead of the location.href line, you would call the jquery.post (sorry for assuming you're using jQuery).

Overkillica Over a year ago

I updated my answer, so it's clearer. Let me know if you have any issue.

Brandon Young Over a year ago

what should url and data contain? please use my existing variables based on the given example to make things clear.. thanks.. i am new to this

Brandon Young Over a year ago

and by the way, I need to pass two arrays here

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