$context = stream_context_create([
    'http' => [
        'follow_location' => true // 启用跟随重定向
    ]
]);
$content = file_get_contents($url, false, $context);

$context = stream_context_create([
    'http' => [
        'header' => "User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36\r\n"
    ]
]);
$content = file_get_contents($url, false, $context);

$context = stream_context_create([
    'ssl' => [
        'verify_peer' => false,
        'verify_peer_name' => false
    ]
]);
$content = file_get_contents($url, false, $context);

$context = stream_context_create([
    'http' => [
        'header' => "Cookie: name=value\r\n"
    ]
]);
$content = file_get_contents($url, false, $context);

$content = file_get_contents($url);
$content = mb_convert_encoding($content, 'UTF-8', 'auto');

$context = stream_context_create([
    'http' => [
        'header' => "User-Agent: Mozilla/5.0\r\n" .
                   "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\n" .
                   "Accept-Language: en-US,en;q=0.5\r\n" .
                   "Accept-Encoding: gzip, deflate\r\n" .
                   "Connection: keep-alive\r\n" .
                   "Referer: https://example.com/\r\n"
    ]
]);
$content = file_get_contents($url, false, $context);

require 'vendor/autoload.php';
use GuzzleHttp\Client;

$client = new Client();
$response = $client->get($url, [
    'headers' => [
        'User-Agent' => 'Mozilla/5.0',
    ],
    'allow_redirects' => true
]);
$content = (string)$response->getBody();