Extracting data from web using PHP

Question

Im trying to extract the file from this url (http://chainz.cryptoid.info/cbx/api.dws?q=getdifficulty) which shows a number but I can't seem to display it. Is there a problem in my code or is it in the site that I'm getting it from?

Here's my code:

<?php 
$url = "http://chainz.cryptoid.info/cbx/api.dws?q=getdifficulty";
$data = json_decode(file_get_contents($url), true);
echo "$data";
?>

It only shows null, can you please help?

Once the above is being answered, I would like to try using a bigger content from this url (http://chainz.cryptoid.info/cbx/api.dws?q=lasttxs&a=5h9ZZpokW2P15yXr66MsHKknPvYmECvaDF)

Here's my code below:

<?php 
$url = "http://chainz.cryptoid.info/cbx/api.dws?q=lasttxs&a=5h9ZZpokW2P15yXr66MsHKknPvYmECvaDF";
$data = json_decode(file_get_contents($url), true);
$content = $data[0]; //trying to get the 1st row
$hash = $content['hash'];
echo "$hash";
?>

The code is not showing anything. Can you please help in displaying the value using php? Thanks

This code though is working ok:

<?php 
$url = "https://www.cryptonator.com/api/ticker/cbx-usd";
$data = json_decode(file_get_contents($url), true);
$ticker = $data['ticker'];
$latest_price = $ticker['price'];
echo "$latest_price";
?>

Take a look at this: http://stackoverflow.com/a/14060034/1856086 And other answers on that page. — Stas Makarov, May 11 '16 at 13:51
What for you put variables in quotes (i.e. `echo "$hash";`)? Do you see difference between variable and variable **value**? — Marcin Orlowski, May 11 '16 at 13:53

score 0 · Accepted Answer · answered May 11 '16 at 13:51

0

In the first example the data isn't returned as JSON, it's just a raw number. You can just use:

$data = file_get_contents($url);

Both of your other examples works fine for me.

answered May 11 '16 at 13:51

iainn

16,826
9
33
40

I tried ' $data = file_get_contents($url);' but it didn't work. Just showing nothing. So you mean the 2nd code is working ok for you without no need for any editing? – Benjamin May 11 '16 at 14:27

score 0 · Answer 2 · answered May 11 '16 at 15:20

0

It seems the codes are working ok using XAMMP but not when I'm using 000webhost. Weird.

answered May 11 '16 at 15:20

Benjamin

47
1
5

Extracting data from web using PHP

2 Answers2