I want to get information about a channel, is it online at the moment or not:
$stream_list = ...;
$mycurl = curl_init();
curl_setopt ($mycurl, CURLOPT_HEADER, 0);
curl_setopt ($mycurl, CURLOPT_RETURNTRANSFER, 1);
//Build the URL
$url = "http://api.justin.tv/api/stream/list.json?channel=" . $stream_list;
curl_setopt ($mycurl, CURLOPT_URL, $url);
$web_response = curl_exec($mycurl);
but thats always return with an empty array. I saw many example based on it - mine wont work, what am I doing wrong?
An empty array probably means nothing was found with the stream list you provided.
I used http://api.justin.tv/api/stream/list.json?channel=beyondthesummit,towelliee and was able to get an array from the API, and then I used http://api.justin.tv/api/stream/list.json?channel=foobar and got an empty JSON array back.
I'd make sure $stream_list has the value you expect. And if it does, try removing the channel filter completely to see if you get results.
It returns an empty array if the channel is not live.
Related
Here is what I have so far. I see 9 results when I visit the URL and after using curl it still displays the 9 results after being printed out. When I used the json_decode function it only created 3 results. I have gone everywhere and havent found anything. A little help in the right direction would be good at this time.
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true );
// This is what solved the issue (Accepting gzip encoding)
curl_setopt($ch, CURLOPT_ENCODING, "gzip,deflate");
$result = curl_exec($ch);
curl_close($ch);
So when I start to decode it
// decode the json
$resp = json_decode($result, true);
I only get 3 associative arrays because I do a
count($resp);
And figure it out that way. Is there a limit on how much the function json_decode() can do?
I was counting the array in the first brackets so it was always showing 3 results
See when you do a
count($resp);
You are only counting html_attributions, results and status.
If you want count the arrays you would do
count($resp['results']);
That would count the arrays in the results.
I am trying to update my API with an update curl function but am struggling to work out why it isn't working
The areas where it may be wrong is key($id) I want it to
extract the ID column based on the key value for the ID array.
$URL I want to create the URL based on the const variables plus the resource name plus the value of the ID array that has been passed through rawurlencode.
So far this is my update code, but am wondering what area is wrong.
I can provide more info if needed and appreciate any help, thanks
<?php
function update(array $id,array $vaules, $resourcename)
$jsonData = json_encode($vaules);
key($id);
$url = DOMAIN.FOLDER.APIPATH.$resourcename.rawurlencode("/".$id);
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER,array ('content-type: application/json'));
curl_setopt($ch, CURLOPT_CUSTOMREQUEST,PUT);
curl_setopt($ch,CURLOPT_POSTFIELDS,$jsonData);
curl_exec($ch);
curl_getinfo(CURLINFO_HTTP_CODE);
}
The function key() returns the current key in an array (according to the internet pointer). Right now you're not doing anything with it, you're calling the function and not assigning it anywhere.
Did you mean to write: rawurlencode("/".key($id).$vaules);?
As your code is right now, assuming $id is an array, you're trying to convert an array into a string, which I doubt is what you want.
I am using couchDB to get a UUID so that I can send a new document to the database.
In order to get this UUID, I use a curl statement:
function getUUID(){
$myCurlSubmit = curl_init();
curl_setopt($myCurlSubmit, CURLOPT_URL, 'http://localhost:5984/_uuids');
curl_setopt($myCurlSubmit, CURLOPT_HEADER, 0);
$response = curl_exec($myCurlSubmit);
curl_close($myCurlSubmit);
return $response;
}
This returns the expected result:
{"uuids":["af09ffd3cf4b35c2d94d1ed755000fb8"]}
However, the following json_decode fails:
print_r('No match, creating new document.');
$uuid = json_decode(trim(getUUID()));
var_dump(json_last_error());
The error printed is: 'int(0)' (not in quotes.), and $uuid is a json string still.
Help appreciated Thank you!
EDIT:
var_dump($uuid) = int(1)
EDIT:
var_dump(getUUID()) = {"uuids":["af09ffd3cf4b35c2d94d1ed755000fb8"]}\n1
Is there any reason why I would have a trailing one, and /n on my json??
EDIT:
The problem was with curl, look at the answer below!
The problem lies in the use of curl in the getUUID() function.
You must set CURLOPT_RETURNTRANSFER, otherwise curl_exec will just echo the result, while returning 1 (as you see).
See for example this comment in the curl_exec manual: http://www.php.net/manual/de/function.curl-exec.php#13020
i got a problem.
i want to log in a website with CURL, but the page generates a key, which is in a hidden field. So I have to grab the value of the hidden field... after that i have to submit the password, the email AND the the grabbed key.
Is that possible?
hope you understand
Thanks
----edit----
if the page reload, there's a new key in the hidden field.. and the old one do not work
Yes, it's possible. The basic steps would be:
1. Fetch form
2. Run returned data through DOMdocument to extract the hidden form field's value
3. Post login data, including the key value from step #2
4. ???
5. Profit
Yes, it is.
Load the page contents into a variable (eg. $contents = file_get_contents(...);).
Now, parse it so you can get the hidden key (eg. $matches = preg_match(..., ...); $key = $matches[1];).
Now, post the request using the hidden key (eg. $context = streamcontextcreate(...); $data = file_get_contents(..., false, $context);).
Yes, it is possible.
You can even grab the page with
$source = htmlspecialchars(file_get_contents($url));
Then use strpos, substr and so on to get information of that field (that's the easiest way)
Then just POST it with this function
$urltopost = $url
$datatopost = array ($name => $value);
$ch = curl_init ($urltopost);
curl_setopt ($ch, CURLOPT_POST, true);
curl_setopt ($ch, CURLOPT_POSTFIELDS, $datatopost);
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, true);
$returndata = htmlspecialchars(curl_exec ($ch));
How can I query a particular website with some fields and get the results to my webpage using php?
let say website xyz.com will give you the name of the city if you give them the zipcode. How can I acehive this easliy in php? any code snap shot will be great.
If I understand what you mean (You want to submit a query to a site and get the result back for processing and such?), you can use cURL.
Here is an example:
<?php
// create curl resource
$ch = curl_init();
// set url
curl_setopt($ch, CURLOPT_URL, "example.com");
//return the transfer as a string
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
// $output contains the output string
$output = curl_exec($ch);
// close curl resource to free up system resources
curl_close($ch);
?>
You can grab the Lat/Long from this site with some regexp like this:
if ( preg_match_all( "#<td>\s+-?(\d+\.\d+)\s+</td>#", $output, $coords ) ) {
list( $lat, $long ) = $coords[1];
echo "Latitude: $lat\nLongitude: $long\n";
}
Just put that after the curl_close() function.
That will return something like this (numbers changed):
Latitude: 53.5100
Longitude: 60.2200
You can use file_get_contents (and other similar fopen-class functions) to do this:
$result = file_get_contents("http://other-site.com/query?variable=value");
Do you mean something like:
include 'http://www.google.com?q=myquery'; ? or which fields do you want to get?
Can you be a bit more specific pls :)
If you want to import the html to your page and analyze it, you probably want to use cURL.
You have to have the extensions loaded to your page (it's usually part of PHP _ I think it has to be compiled in? The manual can answer that)
Here is a curl function. Set up your url like
$param='fribby';
$param2='snips';
$url="www.example.com?data=$param&data2=$param2";
function curl_page($url)
{
$response =false;
$ch = curl_init($url);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,true);
curl_setopt($ch,CURLOPT_FAILONERROR,true);
curl_setopt($ch,CURLOPT_FOLLOWLOCATION,1);
curl_setopt($ch,CURLOPT_TIMEOUT,30);
$response = curl_exec($ch);
curl_close($ch);
return $response;
}
$page_data=curl_page($url);
Then, you can get data out of the page using the DOM parsing or grep/sed/awk type stuff.