问题：
线上运行的LNMP服务器，因历史原因安装的curl模块只支持http，不支持https。类似请求或POST微信接口（小程序），都无法正常使用。
一、解决方法：
编译安装curl，重新编译php，使php的curl模块支持https。
cd /data0/software
1、下载安装curl
wget
tar zxvf curl-7.44.0.tar.gz
cd curl-7.44.0
./configure --prefix=/usr/local/curl --with-gssapi --enable-tls-srp --with-libmetalink
make && make install
2、重新编译php
查找系统之前的php编译参数
/usr/local/webserver/php/bin/php -i | grep configure
./configure --prefix=/usr/local/webserver/php --with-config-file-path=/usr/local/webserver/php/etc --with-mysql=/usr/local/mysql --with-mysqli=/usr/local/mysql/bin/mysql_config --with-iconv-dir=/usr/local --with-freetype-dir --with-jpeg-dir --with-png-dir --with-zlib --with-libxml-dir=/usr/ --enable-xml --disable-rpath --enable-discard-path --enable-safe-mode --enable-bcmath --enable-shmop --enable-sysvsem --enable-inline-optimization --with-curl --with-curlwrappers --enable-mbregex --enable-fastcgi --enable-fpm --enable-force-cgi-redirect --enable-mbstring --with-mcrypt --with-gd --enable-gd-native-ttf --with-openssl --with-mhash --enable-pcntl --enable-sockets --with-ldap --with-ldap-sasl --with-xmlrpc --enable-zip --enable-soap
取消原来的--with-curl
替换为：--with-curl=/usr/local/curl
cd /data0/software/php-5.2.17
#进入php安装包目录（注意php版本要和之前一样）
./configure --prefix=/usr/local/webserver/php --with-config-file-path=/usr/local/webserver/php/etc --with-mysql=/usr/local/mysql --with-mysqli=/usr/local/mysql/bin/mysql_config --with-iconv-dir=/usr/local --with-freetype-dir --with-jpeg-dir --with-png-dir --with-zlib --with-libxml-dir=/usr/ --enable-xml --disable-rpath --enable-discard-path --enable-safe-mode --enable-bcmath --enable-shmop --enable-sysvsem --enable-inline-optimization --with-curl=/usr/local/curl --with-curlwrappers --enable-mbregex --enable-fastcgi --enable-fpm --enable-force-cgi-redirect --enable-mbstring --with-mcrypt --with-gd --enable-gd-native-ttf --with-openssl --with-mhash --enable-pcntl --enable-sockets --with-ldap --with-ldap-sasl --with-xmlrpc --enable-zip --enable-soap
/usr/local/webserver/php/sbin/php-fpm stop
#不确定是否要关闭，但还是关闭再编辑吧
make ZEND_EXTRA_LIBS='-liconv'
make install
/usr/local/webserver/php/sbin/php-fpm start
/usr/local/webserver/php/bin/php -i|grep curl
##有libcurl/7.44.0 OpenSSL/1.0.1e 字样了。说明成功了。
二、还有一种方式，不变服务器环境下，使用socket方式来请求或post数据，方法如下：
function socketRequest($url, $data ="", $method ="", $cookieFile = "", $connectTimeout = 1){
$return = '';
$matches = parse_url($url);
!isset($matches['host']) && $matches['host'] = '';
!isset($matches['path']) && $matches['path'] = '';
!isset($matches['query']) && $matches['query'] = '';
!isset($matches['port']) && $matches['port'] = '';
$host = $matches['host'];
$path = $matches['path'] ? $matches['path'].($matches['query'] ? '?'.$matches['query'] : '') : '/';
$port = !empty($matches['port']) ? $matches['port'] : 443;
$conf_arr = array(
'limit' => 0,
'post' => $data,
'cookie' => $cookieFile,
'ip' => '',
'timeout' => $connectTimeout,
'block' => TRUE,
);
foreach ($conf_arr as $k=>$v) ${$k} = $v;
if($post) {
if(is_array($post))
{
$postBodyString = '';
foreach ($post as $k => $v) $postBodyString .= "$k=" . urlencode($v) . "&";
$post = rtrim($postBodyString, '&');
}
$out = "POST $path HTTP/1.0\r\n";
$out .= "Accept: */*\r\n";
//$out .= "Referer: $boardurl\r\n";
$out .= "Accept-Language: zh-cn\r\n";
$out .= "Content-Type: application/x-www-form-urlencoded\r\n";
$out .= "User-Agent: ".$_SEVER['HTTP_USER_AGENT']."\r\n";
$out .= "Host: $host\r\n";
$out .= 'Content-Length: '.strlen($post)."\r\n";
$out .= "Connection: Close\r\n";
$out .= "Cache-Control: no-cache\r\n";
$out .= "Cookie: $cookie\r\n\r\n";
$out .= $post;
} else {
$out = "GET $path HTTP/1.0\r\n";
$out .= "Accept: */*\r\n";
//$out .= "Referer: $boardurl\r\n";
$out .= "Accept-Language: zh-cn\r\n";
$out .= "User-Agent: ".$_SEVER['HTTP_USER_AGENT']."\r\n";
$out .= "Host: $host\r\n";
$out .= "Connection: Close\r\n";
$out .= "Cookie: $cookie\r\n\r\n";
}
$fp = @fsockopen('ssl://'.($ip ? $ip : $host), $port, $errno, $errstr, $timeout);
if(!$fp) {
return '';
} else {
stream_set_blocking($fp, $block);
stream_set_timeout($fp, $timeout);
@fwrite($fp, $out);
$status = stream_get_meta_data($fp);
if(!$status['timed_out']) {
while (!feof($fp)) {
if(($header = @fgets($fp)) && ($header == "\r\n" || $header == "\n")) {
break;
}
}