<?php
$url = $argv[1] ?? 'https://www.example.com/';
$userAgent = 'ExampleSpider/1.0 (+https://www.example.com/bot)';

$curl = curl_init($url);
curl_setopt_array($curl, [
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_USERAGENT => $userAgent,
    CURLOPT_TIMEOUT => 10,
]);

$response = curl_exec($curl);
if ($response === false) {
    fwrite(STDERR, curl_error($curl) . PHP_EOL);
    curl_close($curl);
    exit(1);
}

$status = curl_getinfo($curl, CURLINFO_HTTP_CODE);
curl_close($curl);

echo "HTTP status: {$status}" . PHP_EOL;
echo $response;