<?php
$url = "https://api.btcturk.com/api/v2/ticker?pairSymbol=BTC_TRY";
$veri = file_get_contents($url);

$bid = '@"bid":(.*?),"ask"@si';
$ask = '@"ask":(.*?),"open"@si';

preg_match($bid,$veri,$alis);
preg_match($ask,$veri,$satis);

echo $alis[1];
echo "<br />";
echo $satis[1];
?>