Retrieving info from JSON array with PHP - php

i have this public JSON https://raw.github.com/currencybot/open-exchange-rates/master/latest.json and i need to extract data from it, right now i tried something like this:
$input = file_get_contents("https://raw.github.com/currencybot/open-exchange-rates/master/latest.json");
$json = json_decode($input);
echo $json[rates]->EUR;
but i obtain a blank page, any suggestion? Thanks !! Ste

json_decode either returns an object, or an array (when you use the second param). You are trying to use both.
Try:
$json = json_decode($input);
echo $json->rates->EUR;
OR
$json = json_decode($input, true);
echo $json['rates']['EUR'];
As to the blank page, please add the following to the top of your script:
error_reporting(E_ALL);
init_set('display_errors', true);
A 500 Error indicates you are unable to resolve that url using file_get_contents.
Check here for more information.

Read the help for json_decode ... without the second parameter it returns and object not an array ...
Either :
$json = json_decode($input);
echo $json->rates->EUR;
or
$json = json_decode($input,true);
echo $json['rates']['EUR'];

Try:
$arr = json_decode($input, true);
var_dump($arr);
echo $arr['rates']['EUR'];
Further Reading:
http://de.php.net/manual/de/function.json-encode.php
For anexample with cURL and SSL read this:
http://unitstep.net/blog/2009/05/05/using-curl-in-php-to-access-https-ssltls-protected-sites/

The link looks like starting with https, while file_get_contents can't deal with SSL. My suggestion is using curl.

Related

Json deserialization return null

I'm trying to deserialize this json.
Actual I stay using the simple html dom library for get the web content, so the next step that I do is using the json_decode() function. But when I'll print the value returned by the function I get NULL. This is the code:
<?php
require_once("simplehtmldom_1_5/simple_html_dom.php");
$html = file_get_html('http://it.soccerway.com/a/block_competition_tables?block_id=page_competition_1_block_competition_tables_8&callback_params=%7B%22season_id%22%3A11663%2C%22round_id%22%3A31554%2C%22outgroup%22%3Afalse%7D&action=changeTable&params=%7B%22type%22%3A%22competition_league_table%22%7D');
$decoded = json_decode($html,true);
var_dump($decoded);
?>
What's wrong in my code? Maybe this isn't the best way for doing this? Hint me.
It seems that your file_get_html function is not working properly, you can get the content of a web with file_get_contents
<?php
$html = file_get_contents('http://it.soccerway.com/a/block_competition_tables?block_id=page_competition_1_block_competition_tables_8&callback_params=%7B%22season_id%22%3A11663%2C%22round_id%22%3A31554%2C%22outgroup%22%3Afalse%7D&action=changeTable&params=%7B%22type%22%3A%22competition_league_table%22%7D');
$decoded = json_decode($html,true);
var_dump($decoded);
?>

How To Pull JSON Data Using PHP

I'm trying to create a very simple php script that can pull data from a JSON file (array?) and echo it to the page. Sadly, I'm a complete newbie when it comes to PHP.
My goal is to dump all IP addresses and the corresponding client version into an output like this...
"127.0.0.1" "/Satoshi:0.9.1/"
"127.0.0.2" "/Satoshi:0.9.0/"
"127.0.0.3" "/Satoshi:0.9.0/"
"127.0.0.4" "/Satoshi:0.9.1/"
I can get the code to dump all data, but I'm not sure how to pull the ip and version without the ip and client version being named.. If that even makes sense?
Here is the code. What do I need to make it dump the correct data?
<?php
$url = 'https://getaddr.bitnodes.io/nodes/1407675714.json';
$JSON = file_get_contents($url);
echo $JSON;
$data = json_decode($JSON);
var_dump($data);
?>
Thanks for your help!
Something like
<?php
$url = 'https://getaddr.bitnodes.io/nodes/1407675714.json';
$JSON = file_get_contents($url);
$data = json_decode($JSON);
$data = (array)$data; // cast from stdClass to array, as results have int keys
foreach($data['nodes'] as $results){
echo $results[0]. " ". $results[3]."<br />";
}
?>
It doesn't makes much sense to convert an array of hashes into the one of some non-named entities. I guess that all you need is to dump it in the following way:
foreach($data as $t)
{
echo("ip=".$t->ip." ua=".$t->ua);
}
I don't think there is any reason to cast to an array. Just process the returned object. This one has the double quotes as requested as well.
<?php
$url = 'https://getaddr.bitnodes.io/nodes/1407675714.json';
$json = file_get_contents($url);
$data = json_decode($json);
foreach($data->nodes as $results){
echo "\"".$results[0]."\" \"".$results[3]."\"<br />";
}
?>

Extracting data from JSON issue

I am trying to get some information about YouTube channel's from the YouTube API.
This is an example the output (using Google's channel), http://gdata.youtube.com/feeds/api/users/Google?alt=json
I am getting the JSON using this:
$json = file_get_contents("http://gdata.youtube.com/feeds/api/users/Google?alt=json");
$data = json_decode($json, true);
I uploaded the output of var_dump($data); to pastebin: http://pastebin.com/CWA7YYGi
What I want to get is totalUploadViews from yt$statistics.
What I have tried so far is:
echo $data['yt$statistics']['totalUploadViews'];
But this gives me an error: Notice: Undefined index: yt$statistics
Not sure what I am doing wrong, would appreciate the help.
yt$statistics is itself a value of a parent array. Try
$data['entry']['yt$statistics']['totalUploadViews'];
The yt$statistics is a key in the array of $data['entry'].
do this:
$json = file_get_contents("http://gdata.youtube.com/feeds/api/users/Google?alt=json");
$data = json_decode($json, true);
echo $data["entry"]["yt\$statistics"]["totalUploadViews"];
the "\$" just escapes the harmful $ from parsing.

Extract Data from JSON URL

http://www.instamapper.com/api?action=getPositions&key=584014439054448247&num=10&format=json
is the url, which contains json data. I want to use that data and send SMS to a particular phone no if value of latitude and longitude(Extracted from JSON).
Check constraints, we can use through php. But the main problem is How to extract data from JSON file?
I don't want to give you the solution, so the below should be enough to get you started.
Read in the JSON data using file_get_contents
Parse the JSON string into a PHP object using json_decode
Your code should look something like this:
$url = "http://www.instamapper.com/api?action=getPositions&key=584014439054448247&num=10&format=json";
$contents = file_get_contents($url);
$jsonObj = json_decode($contents);
You mean something like this?
<?php
$jsonurl = "http://search.twitter.com/trends.json";
$json = file_get_contents($jsonurl,0,null,null);
$json_output = json_decode($json);
foreach ( $json_output->trends as $trend )
{
echo "{$trend->name}\n";
}

How to transfer json data to html with php?

How to transfer json data to html with php?
$url="http://api.nytimes.com/svc/search/v1/article?format=json&query=usa&rank=newest&api-key=mykey"
when I type the url in browser, it return
{"offset" : "0" , "results" : [{"body" : "A guide to cultural and recreational goings-on in and around the Hudson Valley. ...}]}
how to put the json body data into html? I mean like this echo '<div class="body"></div>';
You first need to get the file. You should use curl for this. In the example below I used the file_get_contents() function, you might want to replace it. Use json_decode() to parse the JSON for you.
$json = file_get_contents($url);
$data = json_decode($json);
echo $data->results[0]->body;
This will echo A guide to cultural....
Use json_decode() on the content of the file, which you can retrieve with file_get_contents($url), then you have an array you can use to build the HTML.
$url="http://api.nytimes.com/svc/search/v1/article?format=json&query=usa&rank=newest&api-key=mykey";
$dataRaw = file_get_contents($url);
if ($dataRaw) {
$data = json_decode($dataRaw, true);
foreach ($data['results'] as $cEntry) {
?>
<div class="body">
<?php echo $cEntry['body']; ?>
</div>
<?php
}
}
I'm not sure why you would, but assuming fopen() URL opening is enabled, you could do...
echo file_get_contents($url);
like this ?
<?php
$url="http://api.nytimes.com/svc/search/v1/article?format=json&query=usa&rank=newest&api-key=mykey";
$json = file_get_contents($url);
echo $json;
Once you've loaded a JSON string into PHP, you can then convert it into a PHP array by using the function json_decode(). You can then print the appropriate array element into your HTML output as with any other PHP variable.
Try this:
$jsonDecoded = json_decode($yourJsonEncodedData);
echo $jsonDecoded->results->body;

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