failed to open stream: HTTP request failed!

Question

Hi!

I am requesting a webservice to pull lat/lng coordinates by using country names from a php file using this code:

$defaultcountry = $_REQUEST['country'];
$daurl = "http://ws.geonames.org/search?q=".$defaultcountry.'&rows=5';
$contents = file_get_contents($daurl);

$xml = new SimpleXMLElement($contents);
$lat = $xml->geoname->lat;
$lng = $xml->geoname->lng;

$coords = array('lat'=>"$lat", 'lng'=>"$lng");

$o = array('success'=>true, 'coords'=>$coords);  


echo json_encode($o);

i dont have issues calling this file directly from the browser. The problem is when this file is being called by ajax somewhere, like so:

ajaxManager.add('cacheQueue',{
            url: '../lib/getdefaultcoord.php',
            type:'POST',
            dataType:'json',
            data:{country:Country},
            success:function(json){
             alert(json.coords.lng);

            }

            })

thus, error comes up as stated on my subject line. I have a similar scenario for requesting countrynames using a different webservice url (webservicex.net). That one from geonames.com does not seem to work when requests are made via ajax... How come?

Answer 1

Is this URL correct from the page you do the AJAX request?

url: '../lib/getdefaultcoord.php'

Answer 2

you should get firebug and examine the XHR from it.

I think or your url is wrong or some parameters are not passed like expected

Answer 3

im providing something u guys can play if you won't mind: requesting file with ajax:

$(document).ready(function(){ 


     $.post('getdefaultcoord.php', {country:"united arab emirates"}, function(data){
      alert(data.coords.lat);

     },'json');


    });

on getdefaultcoord.php:

$defaultcountry = $_REQUEST['country'];
$url = "http://ws.geonames.org/search?q=".$defaultcountry."&rows=5";
$contents = file_get_contents($url);

$xml = new SimpleXMLElement($contents);
$lat = $xml->geoname->lat;
$lng = $xml->geoname->lng;


$coords = array("lat"=>$lat,"lng"=>$lng);
$o = array('success'=>true, 'coords'=>$coords);

echo json_encode($o);

u can play around the getdefaultcoord.php to make sure that the requesting file is working properly with its country request and so goes with the getdefaultcoord.php, notice that the original error i posted on my subject line is the same using firebug...

Answer 4

I think in your ajax call you should try to spell the whole path out for the url. Instead of using a relative - "../lib/getdefaultcoord.php" try using "http://www.yourdomain.com/lib/getdefaultcoord.php". The ajax call could be confused by the relative reference.