Use PHP to get JSON data from REST API

Question

I'm new in REST API. I'm building up a test environment and trying to make a handshake between Rest API and Client side PHP.

My JSON data is at

http://localhost:50417/api/device

the data is like:

    [
    {"Truck_ID":1,"Company":"Food Mall","Distance":2000},   
    {"Truck_ID":2,"Company":"Food Mall","Distance":4000},
    {"Truck_ID":3,"Company":"Food Mall","Distance":3050}
    ]

I'm trying to act like a client, use PHP to get the data, and put the data in an array. What I tried on client side which is http://localhost:8080 is

<?php
$url = "http://localhost:50417/api/device";
$response = file_get_contents($url);
echo $response;
?>

I also tried js like

<script type="text/javascript">
$(document).ready(function(){
   $.getJSON("http://localhost:50417/api/device",
    function(data){
           alert (data) // this will show your actual json array
      });
    });

</script>

But no matter what I tried, I always get a "No 'Access-Control-Allow-Origin' header is present on the requested resource." What could be the problem? How clients generally get the data from server using REST API? Thank you.

Can you view http://localhost:50417/api/device in a browser? JavaScript may give you a Access-Control-Allow-Origin error, but PHP's file_get_contents shouldn't. What error do you get with the PHP code? — gen_Eric
– gen_Eric, Commented Sep 3, 2015 at 16:44
You are right. PHP can see it. I forgot to delete JS file so I thought it is a problem of CORS. Thank you. — Jaaaaaaay
– Jaaaaaaay, Commented Sep 3, 2015 at 17:16

ɹɐqʞɐ zoɹǝɟ · Accepted Answer · 2015-09-03 17:08:12Z

3

allow cross origin requests

Enable it in the .htaccess by putting the below line

Header set Access-Control-Allow-Origin "*"

or try from php

<?php
header('Access-Control-Allow-Origin: *');
$url = "http://localhost:50417/api/device";
$response = file_get_contents($url);
echo $response;
?>

edited Sep 3, 2015 at 17:08

answered Sep 3, 2015 at 16:38

ɹɐqʞɐ zoɹǝɟ

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3 Comments

gen_Eric Over a year ago

Pretty sure Access-Control-Allow-Origin is a header that's set on the server.

gen_Eric Over a year ago

Also, pretty sure PHP doesn't care about the Access-Control-Allow-Origin header sent from the server. It's only JavaScript that cares about CORS requests. He needs to show the PHP error he is getting because it certainly is a different one from the JavaScript.

Jaaaaaaay Over a year ago

Rocket Hazmat is right. Thank you guys. I won't consider add an "Access-Control-Allow-Origin" to server. But Feroz gives me an idea to show JSON data without PHP. Thank you.

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