I have a URL that returns a JSON object like this:
{
"USD" : {"15m" : 7809.0, "last" : 7809.0, "buy" : 7809.85, "sell" : 7808.15, "symbol" : "$"},
"AUD" : {"15m" : 10321.42, "last" : 10321.42, "buy" : 10322.54, "sell" : 10320.3, "symbol" : "$"},
}
URL : https://blockchain.info/ticker
more info : https://blockchain.info/api/exchange_rates_api
I want to get all the data from the first line and echo it and to have it keep requesting it so its live
I have used the examples on git hub
https://github.com/blockchain/api-v1-client-php/blob/master/docs/rates.md
but it displays all of the data output and you have to refresh it to get it updated
please can some one point me in the right direction
ideally I would end up with something like
15 m Last Buy Sell
USD ($) 7794.87 7794.87 7795.72 7794.02
I have the table and data going to the table but its echoing the whole data set rather than the first line and also I dont know how to select individual fields
How can I do it through PHP?
What you need is a request php page, which will make:
1 - Get data from te site:
$data = file_get_contents('https://blockchain.info/ticker');
2 - decode the json
$decodedData = json_decode($data);
3 - Here you can access it using OOP:
var_dump($decodedData->USD);
The point here will be to retrieve data as you wish, you can mix it up with HTML in a table for example.
Then, you need a JS script, that will execute a function with setInterval, each few miliseconds. That function should make a request to a PHP page that you created earlier, get that data and change with the updated one.
This Should do it:
<?
$seconds = 5;
function get_live_quote($key){
$json_string = file_get_contents('https://blockchain.info/ticker');
$json_array = json_decode($json_string, TRUE);
$quote = $json_array[$key];
$keys = implode(" ",array_keys($quote));
$values = implode(" ", array_values ($quote));
return "$keys $values \n";
}
while(TRUE){
echo get_live_quote("USD");
sleep($seconds);
}
Save the preceding code to a file like "quote.php". Then from your terminal just run: php quote.php
Related
I am using Block.io Web Hooks. It says that the notification service requires to communicate through POST requests. It also stated that all notification events will use the following JSON objects structure:
{
"notification_id" : "...", // a unique identifier issued when you created the notification
"delivery_attempt" : 1, // number of times we've tried deliverying this object
"type" : "...", // the type of notification, helps you understand the data sent below
"data" : {
... // the notification data
},
"created_at" : 1426104819 // timestamp of when we created this notification
}
I have provided my callback URL and I saw there is row inserted into my database but the value is blank. Yes I know that my code will insert blank but when I trigger the API it is also insert blank.
<?php
$post = '';
foreach($_POST as $k => $v){
$post .= $k.'='.$v.'&';
}
// save data into database
?>
The webhook returns json and this will not be parsed to the $_POST array by PHP.
Instead, you need to get the string from:
file_get_contents('php://input')
This you can parse yourself. To get an array:
$array = json_decode(file_get_contents('php://input'), true);
Hello fellow developers,
I have been trying to manipulate the output and display the total amount of workers there are instead of outputting the workers name as a string.
Bellow you will find the data that i am receiving and further down i will explain how i would like to handle the JSON response.
{
"result":
{
"addr":"ADDRESS_HERE",
"workers":
[
["worker1080",{},2,1,"200000",0,22],
["worker1080",{"a":"899.4"},3,1,"512",0,24]
],
"algo":-1
},
"method":"stats.provider.workers"
}
So basically as you can see from the above response that there are 2 workers named "worker1080" active on that address.
The bellow php code is how i retrieve the data and output only the names of the workers:
<?php
$btcwallet = get_btc_addy();
if (isset($cur_addy)) {
$method4 = new methods();
$worker_stats = new urls();
$get_data = file_get_contents(utf8_encode($worker_stats->nice_url.$method4->m4.$cur_addy));
$get_json = json_decode($get_data, true);
foreach ($get_json['result']['workers'] as $v) {
$i = 0;
print $v[$i++]."<br />";
}
}
?>
$get_json is the variable that decodes the data from $get_data and displays the worker names and increments every time a worker is added or online.
now i currently have 2 workers online as shown in the JSON response.
it outputs:
worker1080
worker1080
which is perfect although if i try using a foreach statement and try to display the the total amount of workers online it should display 2 instead of the names, it has to also increment for each worker that the json repsonse outputs.
EG: i have 2 workers online now, but in an hour i will connect 10 more it would display the following:
worker1080
worker1080
worker1070
worker1070
worker1080ti
worker1080ti
workerASIC
workerASIC
workerASIC
workerCPU
workerCPU
workerCPU
Now i try to use the following to display the total:
count($v[$i++]);
and i have tried using a foreach within the foreach, and both count and the foreach both will either display "0" by all the workers or "1"
bellow is an example of the output.
0
0
0
0
0
How would i go about counting each line in the output and display the total number of workers ?
Thanks #symcbean for the solution.
<?php
$btcwallet = get_btc_addy();
if (isset($cur_addy)) {
$method4 = new methods();
$worker_stats = new urls();
$get_data = file_get_contents(utf8_encode($worker_stats->nice_url.$method4->m4.$cur_addy));
$get_json = json_decode($get_data, true);
print count($get_json['result']['workers'])."<br />"; // <-- solution *removed foreach and $i incrementation as its not needed for count
}
?>
it now displays the correct number of workers :)
I have some Session values that I am constantly changing via Ajax calls. I can't seem to get a handle on the POST data to process it and set the values.
What I am passing to it here is an array of strings like is shown in my code below.
Here is where AJAX calls:
var sessionValues = [];
str = {"PID": "1", "Level": "Main", "MenuName": "Kitchen", "State": "CHECKED"}
sessionValues.push(str);
var postObj = {"sessionData": sessionValues};
$.ajax({
type: 'POST',
data: {'data': postObj},
url: 'setSession.asp'
}).done(function(response){
console.log(response);
})
I have this working fine in a PHP version of the program but my ASP version is not grabbing the data. Here is my PHP ver and the ASP ver as best as I could convert it.
<-- php setSession.php works fine -->
$data = $_POST['data'];
foreach ($data['sessionData'] as $key => $value) {
$projectProduct = "1";
$level = $value["Level"];
$menuName = $value["MenuName"];
$state = $value["State"];
$_SESSION['PID:'.$projectProduct][$level][$menuName]['menu_state'] = $state;
echo "[PID:".$projectProduct."][".$level."][".$menuName."][".$state."]<br>";
}
0 =>>>>> Array<br>[PID:1][Main][Kitchen][CHECKED]
Here I want to do the same thing in ASP
' setSession.asp
data = Request.Form("data")
For Each part In data("sessionData")
projectProduct = part("PID")
level = part("Level")
menuName = part("MenuName")
state = part("State")
Session("PID:" & projectProduct).Item(level).Item(menuName).Remove("menu_state")
Session("PID:" & projectProduct).Item(level).Item(menuName).Add "menu_state", state
response.write("[PID:" & projectProduct&"]["&level&"]["&menuName&"]["&state&"]<br>")
Next
outputs blank
It looks like it never has any data but doesn't throw any errors. Am I reading the POST object correctly?
[edit]
Here is the RAW POST data captured from Fiddler:
data%5BsessionData%5D%5B0%5D%5BPID%5D=1&data%5BsessionData%5D%5B0%5D%5BLevel%5D=Main&data%5BsessionData%5D%5B0%5D%5BMenuName%5D=Kitchen&data%5BsessionData%5D%5B0%5D%5BState%5D=CHECKED
here I used a URL Decode on that string-
data[sessionData][0][PID]=1&data[sessionData][0][Level]=Main Level Plan&data[sessionData][0][MenuName]=Kitchen&data[sessionData][0][State]=CHECKED
This looks like I should be able to loop through the strings now by using
For Each part In Request.Form("data[sessionData]")
but nothing happens. I added a simple loop to look at the request.form and here is what it is seeing:
for each x in Request.Form
Response.Write(x)
Next
' outputs -> data[sessionData][0][PID]data[sessionData][0][Level]data[sessionData][0][MenuName]data[sessionData][0][State]
I guess what this comes down to is just reading through and processing that string correctly, or multiple if more than one is sent. Correct?
The RAW output definitely helps work out what is going on.
What is happening is jQuery is translating the JSON structure into HTTP POST parameters but during the process, it creates some overly complex key names.
If you break down the key value pairs you have something like
data[sessionData][0][PID]=1
data[sessionData][0][Level]=Main Level Plan
data[sessionData][0][MenuName]=Kitchen
data[sessionData][0][State]=CHECKED
As far as Classic ASP is concerned the this is just a collection of string key and value pairs and nothing more.
The correct approach to work out what these keys are is to do what you have done in the question, but with some minor alternations.
For Each x In Request.Form
Response.Write(x) & "=" & Request.Form(x) & "<br />"
Next
Which when outputted as HTML will look similar to the break down shown above.
Armed with the knowledge of what the keys are you should be able to reference them directly from the Request.Form() collection.
Dim pid: pid = Request.Form("data[sessionData][0][PID]")
Response.Write pid
Output:
1
I am trying to write a php code that takes coefficients from a html form, sends them to a python algorithm that returns a json object. That object is a list of player names, basically {"Ji" : "Firstname Lastname"} for i from 1 to 15.
The python code (interface.py) I have to create this json is :
import json
i=0
for joueur in best_team:
i+=1
output["J%s"%(i)]=joueur['nom']
out=json.dumps(output)
print(out)
best_team is a list of player dictionnaries with data on them. My player names don't involve any non ASCII characters or whatever.
My php code is the following :
$command = "python interface.py";
$command .= " $coeff1 $coeff2 $coeff3 $coeff4 $coeff5 $coeff6 $coeff7 $coeff8 $coeff9 $coeff10 2>&1";
$pid = popen( $command,"r");
while( !feof( $pid ) )
{
$data = fread($pid, 256);
$data= json_decode($data) ;
echo $data->J1;
flush();
ob_flush();
echo "<script>window.scrollTo(0,99999);</script>";
usleep(100000);
}
pclose($pid);
I call the coefficients from the html and then send back the results via a js file.
But I just get the following error : Notice: Trying to get property of non-object.
Nothing wrong with the js file because if I try instead :
$string = '{"foo": "bar", "cool": "attributlong"}';
$result = json_decode($string);
echo $result ->cool;
It works.
Also if I have instead in my python file :
out={"foo":"bar","word":"longerthaneightcharacters"}
out=json.dumps(out)
print(out)
It works as well (replacing J1 by word in php code of course).
And funny enough, if i have in python:
output={}
i=0
for joueur in best_team:
i+=1
output["J%s"%(i)]="short"
output["J%s"%(i)]=str(output["J%s"%(i)])
out=json.dumps(output)
print(out)
It works, and if I replace "short" by "longerthaneightcharacters" it doesn't work anymore.
So basically my question is, why is there a maximum number of characters in my output loop and how can I bypass it ? Thanks, I am very confused.
I'm trying to connect with the instagram API, the connection works fine and I am receiving the updates just as described in the API documentation, the issue is that I cannot access to the data send to my callback function.
According to the doc
When someone posts a new photo and it triggers an update of one of your subscriptions, we make a POST request to the callback URL that you defined in the subscription
This is my code :
// check if we have a security challenge
if (isset ($_GET['hub_challenge']))
echo $_GET['hub_challenge'];
else // This is an update
{
// read the content of $_POST
$myString = file_get_contents('php://input');
$answer = json_decode($myString);
// This is not working starting from here
$id = $answer->{'object_id'};
$api = 'https://api.instagram.com/v1/locations/'.$id.'/media/recent?client_secret='.INSTA_CLI_SECRET.'&client_id='.INSTA_CLI_ID;
$response = get_curl($api); //change request path to pull different photos
$images = array();
if($response){
$decode = json_decode($response);
foreach($decode->{'data'} as $item){
// do something with the data here
}
}
}
Displaying the $myString variable I have this result, don't know why it is not decoded to json :(
[{"changed_aspect": "media", "subscription_id": 2468174, "object":
"geography", "object_id": "1518250", "time": 1350044500}]
the get_curl function is working fine when I hardcode my $id.
I guess something is wrong with my $myString, unfortunately the $_POST cvariable is not populated, Any idea what I am missing ?
Looking at the example JSON response included in your question, I can conclude that the object you are trying to talk with is wrapped in an array (hence the [ and ] around it in the JSON string).
You should access it using $answers[0]->object_id.
If that doesn't work, you can always use var_dump to check out the data in one of your variables.