Output All Currency Values using PHP - php

Question

I am trying to utilize the Bitcoin Charts API to display bitcoin value in all currencies as list items.
Currently I am repeating this PHP snippet in each list item:
<li class="myClass">
<?php
foreach(json_decode(file_get_contents("http://api.bitcoincharts.com/v1/markets.json")) as $item)
if($item->symbol == 'localbtcPLN') break;
printf("\t%s\nPLN", $item->avg);
?>
</li>
How can I simplify this so that the code is only calling the JSON file once?
Thanks for your help.
As per Vishal's assistance, I tried this:
<?php $all_data = json_decode(file_get_contents("http://api.bitcoincharts.com/v1/markets.json"),true);
foreach ($all_data as $data)
{
?><li class="pure-menu-item pure-menu-disabled">
<?php
echo $data['ask'];//use the keyname to get the value
echo ' ';
echo $data['currency'];
?>
</li>
<?php
}
?>
However, it is outputting too much data, including empty values.
Using what I've learned from Florian and Vishal, I have attempted the following snippet, which outputted the data perfectly with the caveat of some duplicated currencies.
<?php $all_data = json_decode(file_get_contents("http://api.bitcoincharts.com/v1/markets.json"),true);
foreach ($all_data as $data)
{
if(trim($data['avg']) != "")//check if value not empty
{
?><li class="pure-menu-item pure-menu-disabled">
<?php
echo $data['avg']; //use the keyname to get the value
echo ' ';
echo $data['currency'];
?>
</li>
<?php
}
}
?>

Answer 1

you can run a foreach loop
<ol>
<?php $all_data = json_decode(file_get_contents("http://api.bitcoincharts.com/v1/markets.json"),true);
foreach ($all_data as $data)
{
if(trim($data['currency']) != "")//check if value not empty
{
?><li>
<?php echo $data['bid'];//use the keyname to get the value ?>
</li>
<?php
}
}
?>
</ol>

Answer 2

I think you want to show values in a certain order.
First, store the result of json_decode() in an array like #Vishal Wadhawan said.
$all_data = json_decode(file_get_contents("http://api.bitcoincharts.com/v1/markets.json"),true);
Next, make a new array where you will store only symbol and avg:
$myvalues = array();
foreach ($all_data as $data)
{
$myvalues[$data['symbol']] = $data['avg'];
}
After that, you can use $myvalues to display avg like that:
<li class="myClass">
<?php echo $myvalues['localbtcPLN'] . ' PLN'; ?>
</li>
You can also store the 'currency' value:
$myvalues[$data['symbol']] = array(
'avg' => $data['avg'],
'currency' => $data['currency'],
);
And access it with:
<li class="myClass">
<?php echo $myvalues['localbtcPLN']['avg'] . ' ' . $myvalues['localbtcPLN']['currency']; ?>
</li>