我在AWS服务器上配置了cURL，PHP。
[root@ip-XXX.XXX.XXX.XXX ~]# curl -V
curl 7.51.0 (x86_64-pc-linux-gnu) libcurl/7.51.0 OpenSSL/1.0.1k zlib/1.2.8 libidn2/2.0.4 libpsl/0.6.2 (+libicu/50.1.2) libssh2/1.4.2 nghttp2/1.27.0-DEV
Protocols: dict file ftp ftps gopher http https imap imaps ldap ldaps pop3 pop3s rtsp scp sftp smb smbs smtp smtps telnet tftp
Features: IDN IPv6 Largefile NTLM NTLM_WB SSL libz HTTP2 UnixSockets PSL
[root@ip-XXX.XXX.XXX.XXX ~]# php -v
PHP 7.0.21 (cli) (built: Sep 14 2017 15:46:42) ( NTS )
Copyright (c) 1997-2017 The PHP Group
Zend Engine v3.0.0, Copyright (c) 1998-2017 Zend Technologies
[root@ip-XXX.XXX.XXX.XXX ~]# httpd -v
Server version: Apache/2.4.27 (Amazon)
Server built: Sep 15 2017 22:56:01
我有支持HTTP2的cURL，但我在PHP中使用带有HTTP2的cURL。它没有用，给了我一个错误："Unexpected HTTP/1.x request"
