How to get price from bitcoin to USD with api

Question

Please help me how to get the price from bitcoin to USD with bitpay API. I wrote the following code, but I got USD to bitcoin price. I want bitcoin to USD price. Thanks!

<?php 

$url = "https://bitpay.com/api/rates"; 

$json = file_get_contents($url); 
$data = json_decode($json, TRUE); 

$rate = $data[1]["rate"]; 
$usd_price = 10; # Let cost of elephant be 10$ 

$bitcoin_price = round( $usd_price / $rate , 8 ); 

?>

Answer 1

If I'm not wrong, is this what you mean?

$url='https://bitpay.com/api/rates'; 
$json=json_decode( file_get_contents( $url ) ); 
$dollar=$btc=0; 

foreach( $json as $obj ){ 
      if( $obj->code=='USD' )$btc=$obj->rate; 
} 

echo "1 bitcoin=\$" . 
$btc . "USD<br />"; $dollar=1 / $btc; 
echo "10 dollars = " . round( $dollar * 10,8 )."BTC";

The Returns:

1 bitcoin=$11485USD 
10 dollars = 0.0008707BTC

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