header('Content-type:application/json;charset=utf-8');

function sanitize_output($buffer)
{

$search = array(
'/\>[^\S ]+/s', // strip whitespaces after tags, except space
'/[^\S ]+\</s', // strip whitespaces before tags, except space
'/(\s)+/s', // shorten multiple whitespace sequences
'/<!--(.|\s)*?-->/' // Remove HTML comments
);

$replace = array(
'>',
'<',
'\\1',
''
);

$buffer = preg_replace($search, $replace, $buffer);

return $buffer;
}

function post_data($url)
{
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_FAILONERROR, 1);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
    curl_setopt($ch, CURLOPT_TIMEOUT, 10);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch, CURLOPT_ENCODING, "gzip, deflate, br");
    $return = sanitize_output(curl_exec($ch));
    curl_close($ch);

    return $return;
}

echo post_data("https://www.instagram.com/web/search/topsearch/?query=instagram");