PHP Decode

<?php 
echo "+-----------------------------+\n";
echo "|    Instagram Information    |\n";
echo "|        by panjoel08         |\n";
echo "+-----------------------------+\n";

echo "Masukan Username:";
$nama = trim(fgets(STDIN, 1024));
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "https://www.instagram.com/web/search/topsearch/?query=$nama");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "GET");  
$headers = array();
$headers[] = "User-Agent: Instagram 10.29.0 (iPhone7,2; iPhone OS 9_3_3; en_US; en-US; scale=2.00; 750x1334) AppleWebKit/420+";
$headers[] = "Content-Type: application/json";
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
$result = curl_exec($ch);
curl_close ($ch);
$f = json_decode($result);
foreach($f->users as $k ) {
echo 'User ID 	:'.$k->user->pk."\n";
echo 'Username 	:'.$k->user->username."\n";
echo 'Full name	:'.$k->user->full_name."\n";
echo 'Follower	:'.$k->user->byline."\n";
echo 'Profile	:'.$k->user->profile_pic_url."\n";
echo "\n";
}
 ?>