我一直在用file_get_contents多年来抓取网站的内容。

最近，他们将 URL 更新为 HTTPS和 file_get_contents停止工作。

我已经阅读了以前的问题并尝试了标记的解决方案，但没有任何效果。

例如，我试过 this ，并返回以下内容:

openssl: yes http wrapper: yes https wrapper: yes wrappers: array ( 0 => 'https', 1 => 'ftps', 2 => 'compress.zlib', 3 => 'compress.bzip2', 4 => 'php', 5 => 'file', 6 => 'data', 7 => 'http', 8 => 'ftp', 9 => 'zip', )

最佳答案

最终答案
如果您的 ISP 不会将 openSSL 升级到 TLS 1.2，您应该认真考虑另一个 ISP。您应该使用下面的“SSL SERVER TEST”链接来测试您的服务器。您的服务器可能存在 SSL 安全漏洞。
您尝试连接的服务器仅支持 TLS 1.2 和 TLS 1.1
不支持:TLS 1.0、SSL 3、SSL2。
当发出 SSL 请求时，作为 SSL 协议(protocol)的一部分，curl 向主机服务器提供密码列表。然后服务器根据 curl 提供的列表选择要使用的密码协议(protocol)。
您尝试连接的主机支持这些密码套件

TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (0xc030)  
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (0xc02f)  
TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 (0x9f) 
TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 (0x9e)  
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (0xc028)  
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)  
TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 (0x6b)  
TLS_DHE_RSA_WITH_AES_256_CBC_SHA (0x39) 
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (0xc027) 
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)  
TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 (0x67)  
TLS_DHE_RSA_WITH_AES_128_CBC_SHA (0x33) 
TLS_RSA_WITH_AES_256_GCM_SHA384 (0x9d) 
TLS_RSA_WITH_AES_128_GCM_SHA256 (0x9c) 
TLS_RSA_WITH_AES_256_CBC_SHA256 (0x3d) 
TLS_RSA_WITH_AES_256_CBC_SHA (0x35) 
TLS_RSA_WITH_AES_128_CBC_SHA256 (0x3c) 
TLS_RSA_WITH_AES_128_CBC_SHA (0x2f) 

curl_setopt($ch, CURLOPT_SSL_CIPHER_LIST, 'TLSv1');
curl_setopt($ch, CURL_SSLVERSION_TLSv1_1);

curl_setopt($ch, CURLOPT_SSL_CIPHER_LIST, 'DEFAULT');
curl_setopt($ch, CURL_SSLVERSION_TLSv1_1);

-------------------------------------------------------------------------

 
 -

$request = array();
$request[] = 'Host: example.com';
$request[] = 'Connection: keep-alive';
$request[] = 'Pragma: no-cache';
$request[] = 'Cache-Control: no-cache';
$request[] = 'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8';
$request[] = 'User-Agent: Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.101 Safari/537.36';
$request[] = 'DNT: 1';
$request[] = 'Origin: https://example.com';
$request[] = 'Referer: https://example.com/entry/login';
$request[] = 'Accept-Encoding: gzip, deflate';
$request[] = 'Accept-Language: en-US,en;q=0.8';

$url = 'https://example.com/entry/login';
$ch = curl_init($url);

curl_setopt($ch, CURLOPT_HTTPHEADER, $request);

curl_setopt($ch, CURLOPT_VERBOSE, true);
curl_setopt($ch, CURLINFO_HEADER_OUT, true);
curl_setopt($ch, CURLOPT_HEADER, true);

curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_COOKIESESSION , true );

curl_setopt($ch, CURLOPT_ENCODING,"");

curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10);
curl_setopt($ch, CURLOPT_TIMEOUT,10);
curl_setopt($ch, CURLOPT_FAILONERROR,true);

echo file_get_contents($url);

<?php
header('content-type: text/plain');

$url = 'https://amxemr.com';
$ch = curl_init($url);

curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);

curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_ENCODING,"");
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10);
curl_setopt($ch, CURLOPT_TIMEOUT,10);
curl_setopt($ch, CURLOPT_FAILONERROR,true);
curl_setopt($ch, CURLOPT_ENCODING,"");
curl_setopt($ch, CURLOPT_VERBOSE, true);
curl_setopt($ch, CURLINFO_HEADER_OUT, true);
curl_setopt($ch, CURLOPT_HEADER, true);


$data = curl_exec($ch);
if (curl_errno($ch)){
    echo 'Retreive Base Page Error: ' . curl_error($ch);
}
else {
  $info = rawurldecode(var_export(curl_getinfo($ch),true));

 // Get the cookies:

  $skip = intval(curl_getinfo($ch, CURLINFO_HEADER_SIZE)); 
  $responseHeader= substr($data,0,$skip);
  $data= substr($data,$skip);
  echo "HEADER: $responseHeader\n";
  echo "\n\nINFO: $info\n\nDATA: $data";
}  
?>

<?php
phpinfo();
?>  

Retreive Base Page Error: 
Unknown SSL protocol error in connection to www.xxxx.com:443 

关于php - 无法通过 HTTPS 获取 file_get_contents 或 cURL，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/42175050/