PHP客户端验证https证书

我需要创建一个 php 来充当客户端并使用 https 下的一些 Web 服务。 我的问题是我还想验证服务器证书。我需要知道我有正确的服务器并且中间没有人充当服务器。 有人能帮助我吗？

Thanks!

如果您有curl 扩展，则可以将其配置为验证连接时的证书。

http://php.net/manual/en/function.curl-setopt.php http://php.net/manual/en/function.curl-setopt.php

// As of writing this, Twitter uses Verisign, Google uses Eqifax
$exampleUrl = 'https://twitter.com/'; // Success
$exampleUrl = 'https://google.com/';  // Fails

// create a new CURL resource
$ch = curl_init($exampleUrl);

// enable verification
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);

// list of CAs to trust
// If the remote site has a specific CA, they usually have a .crt
// file on their site you can download.  Or you can export key items from
// some browsers.
// In this example, using: Verisign [1]
curl_setopt($ch, CURLOPT_CAINFO, __DIR__ . '/ca_bundle.crt');
// - or -
curl_setopt($ch, CURLOPT_CAPATH, __DIR__ . '/ca_certs/');

// If the remote site uses basic auth:
curl_setopt($ch, CURLOPT_USERPWD, $username . ':' . $password);

// And a helpful option to enable while debugging
//curl_setopt($ch, CURLOPT_VERBOSE, true);

// defaults to stdout, don't want that for this case.
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

$page = curl_exec($ch);

[1] http://www.verisign.com/support/verisign-intermediate-ca/extended-validation/apache/ http://www.verisign.com/support/verisign-intermediate-ca/extended-validation/apache/