Php:File_Get_Contents($Loc) Fails

PHP : file_get_contents($loc) fails

Name or service not known

DNS is broke. Can you ping data.mysite.com from a shell on the machine (assuming you have one)?

Try replacing data.mysite.com with a fixed IP address for now.

PHP file_get_contents does not work on localhost

From the documentation for file_get_contents:

A URL can be used as a filename with this function if the fopen wrappers have been enabled. See fopen() for more details on how to specify the filename. See the Supported Protocols and Wrappers for links to information about what abilities the various wrappers have, notes on their usage, and information on any predefined variables they may provide.

Check in your php.ini so allow_url_fopen is set to on.

EDIT:

I didn't noticed that you actually could use file_get_contents locally, so now I'm thinking that this could have something to do with your firewall settings.

Also, try to set the user_agent in your php.ini if not already done.

PHP: file_get_contents() gives me Name or service not known

I hate to say this, but the problem solved itself; I just upgraded the Debian packages (apt-get upgrade) and the problem went away. Frustrating to not know the cause, though.

Thank you all for your time!

Issue with file_get_contents encoding

What you have there is UTF-16LE in which each codepoint is encoded as at least two bytes, even "basic ASCII". The first two bytes of the document are the Byte Order Mark [BOM] that declares in what byte-order [endian] those codepoints are encoded

$input = "\xff\xfe{\x00}\x00"; // UTF-16-LE with BOM

function convert_utf16($input, $charset=NULL) {
    // if your data has no BOM you must explicitly define the charset.
    if( is_null($charset) ) {
        $bom = substr($input, 0, 2);
        switch($bom) {
            case "\xff\xfe":
                $charset = "UTF-16LE";
                break;
            case "\xfe\xff":
                $charset = "UTF-16BE";
                break;
            default:
                throw new \Exception("No encoding specified, and no BOM detected");
                break;
        }
        $input = substr($input, 2);
    }
    return mb_convert_encoding($input, "UTF-8", $charset);
}

$output = convert_utf16($input);

var_dump(
    $output,
    bin2hex($output),
    json_decode($output, true)
);

Output:

string(2) "{}"
string(4) "7b7d"
array(0) {
}

It's also worth noting that using anything other than UTF-8 to encode JSON makes it invalid JSON, and you should tell whoever is giving you this data to fix their app.

ipinfo.io via PHP's file_get_contents() and cURL fail

I run http://ipinfo.io, and we don't block access to any IPs (we do rate limit requests from IPs, but that'd result in a HTTP status code, not a blocked connection). This sounds like a config issue with your server to me. Some hosts lock down file_get_contents so it can't open URLs, or might have blocked http://ipinfo.io. Are few ways to track this down:

1) Can you open another URL with file_get_contents? Eg. what happens when you file_get_contents('http://google.com'). If you get a permission denied error there then you should speak to your hosting provider

2) Does command line curl work for ipinfo.io? The -i -v flags should give you more information about what's going on here. Here's what a successful request looks like:

$ curl -iv ipinfo.io
* Rebuilt URL to: ipinfo.io/
*   Trying 54.68.119.255...
* Connected to ipinfo.io (54.68.119.255) port 80 (#0)
> GET / HTTP/1.1
> Host: ipinfo.io
> User-Agent: curl/7.49.1
> Accept: */*
>
< HTTP/1.1 200 OK
HTTP/1.1 200 OK
< Access-Control-Allow-Origin: *
Access-Control-Allow-Origin: *
< Content-Type: application/json; charset=utf-8
Content-Type: application/json; charset=utf-8
< Date: Sun, 15 Jan 2017 18:38:44 GMT
Date: Sun, 15 Jan 2017 18:38:44 GMT
< Server: nginx/1.8.1
Server: nginx/1.8.1
< Set-Cookie: first_referrer=; Path=/
Set-Cookie: first_referrer=; Path=/
< X-Content-Type-Options: nosniff
X-Content-Type-Options: nosniff
< Content-Length: 252
Content-Length: 252
< Connection: keep-alive
Connection: keep-alive

<
{
  "ip": "24.6.61.239",
  "hostname": "c-24-6-61-239.hsd1.ca.comcast.net",
  "city": "Mountain View",
  "region": "California",
  "country": "US",
  "loc": "37.3845,-122.0881",
  "org": "AS7922 Comcast Cable Communications, LLC",
  "postal": "94040"
* Connection #0 to host ipinfo.io left intact
}

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