asked on

Twitter API JSON GEOCODE

I'm grabbing data off of twitter and need help with obtaining geo coordinates (if exist)

currently, what i'm doing is

$l = count($decode->results);
    for ($i=0; $i < $l; $i++) { 
        $dirArray[$i][0] = $decode->results[$i]->text;  
        $dirArray[$i][1] = $decode->results[$i]->from_user;

Open in new window

I'd like to grab geo also but .. sometimes Geo is Null and other times it's an array.

not null:

"geo":{"coordinates":[33.045491,-96.731439],"type":"Point"},

Open in new window

null:

,"geo":null,

Open in new window

how how should i set up my $dirArray[$i][1] = $decode->results[$i]->
to get geo whether it's null or not?
I've tried
$dirArray[$i][8] = $decode->results[$i]->geo;
and putting it into a varchar.. but that doesn't work since at times it's an array.

Any help please!!!

Ray Paseur

Without a little more context, it is impossible to give a precise answer, but this strategy may be helpful. You might want to use isset() to test and see if the geo property contains coorinates. You can also test with is_null().
http://us1.php.net/manual/en/function.isset.php
http://us1.php.net/manual/en/function.is-null.php

I would recommend using var_dump($decode->results[$i]->geo); to see the exact structure of the variable after it is decoded.

Cree

ASKER

ok.. thanks

I'm a little further

I now have a variable ($j) that contains an array. when I dump it, it gives me this:

object(stdClass)#252 (2) { ["coordinates"]=> array(2) { [0]=> float(-22.904169) [1]=> float(-43.177224) } ["type"]=> string(5) "Point" }

Open in new window

If I wanted to assign each array to a variable.. say $y and $z.. how would I go about doing it?

Ray Paseur

I'd like to give you a code example, but I'm not following this completely, so I can't produce tested code. It looks like you have an object instance of stdClass that contains some properties, probably including parts of a geocode. A geocode is a latitude/longitude pair, always expressed in that order, as a pair of signed decimal numbers separated by a comma.

I am guessing that this might be what you want to use (assuming that this describes a location in Rio de Janeiro).

$lat = (string)$obj->coordinates[0];
$lon = (string)$obj->coordinates[1];

Try that and see if it makes sense.

Cree

ASKER

It does make sense but it's not working.

The code i entered into the loop is this:

var_dump($j) ;
$lat = (string)$obj->coordinates[0];
$lon = (string)$obj->coordinates[1];
ECHO '<br> here: '.$lat. '<br>';

what I'm getting when running is:

object(stdClass)#8 (2) { ["coordinates"]=> array(2) { [0]=> float(36.973798) [1]=> float(35.310664) } ["type"]=> string(5) "Point" }
here:
object(stdClass)#11 (2) { ["coordinates"]=> array(2) { [0]=> float(35.243236) [1]=> float(136.985178) } ["type"]=> string(5) "Point" }
here:

So, $lat is not retrieving the array data correctly.

ASKER CERTIFIED SOLUTION

Ray Paseur

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

Cree

ASKER

That was exactly what I was looking for.

Ray Paseur

Thanks for the points and thanks for using EE - it's a great question ~Ray