file_get_contents(): SSL operation failed with code 1

出现file_get_contents(): SSL operation failed with code 1的错误

方法需要添加参数，如下:

$stream_opts = [
    "ssl" => [
        "verify_peer"=>false,
        "verify_peer_name"=>false,
    ]
];  

$response = file_get_contents("https://www.example.com",
               false, stream_context_create($stream_opts));

解決方法參考:

1. file_get_contents(): SSL operation failed with code 1. And more
2. ile_get_contents SSL operation failed with code 1 SSL3_GET_SERVER_CERTIFICATE certificate verify failed

来源：https://www.cnblogs.com/fsong/p/11335501.html