Lnmp one-click package installation, php5.x version of curl access https appears 502 Bad Gateway,http request successful - Codes Helper

problem description

I use the lnmp1.4 version to install the php development environment with one click. My system version is Ubuntu 18.04.1 LTS.
. As long as I send the curl https request in the php5.x version, there will be a 502 error, but http will not appear in the above php7 version (the same code). I have built the php7.1.17 version + php5.6 version locally to test

the environmental background of the problems and what methods you have tried

I have done a lot of things in Baidu, and I have tried to increase the number of request_terminate_timeout,max_children in php-fpm.conf, but the problem still exists. Then I recompile the lnmp1.4 version 5.5 test, and then my curl https appears 502, which is not possible only if I use the php7.0 version. My system has been upgraded before

related codes

/ / Please paste the code text below (do not replace the code with pictures)

modify php.ini file

output_buffering = 65535

View nginx error log

jingmian@jingmian-TUF:/home/wwwlogs$ cat nginx_error.log

2018/09/17 21:12:23 [error] 21050-sharp0: *1 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 127.0.0.1, server: _, request: "GET /3.php HTTP/1.1", upstream: "fastcgi://unix:/tmp/php-cgi.sock:", host: "127.0.0.1"

php-frm profile

root@jingmian-TUF:/usr/local/php/etc-sharp cat php-fpm.conf
[global]
pid = /usr/local/php/var/run/php-fpm.pid
error_log = /usr/local/php/var/log/php-fpm.log
log_level = notice

[www]
listen = /tmp/php-cgi.sock
listen.backlog = -1
listen.allowed_clients = 127.0.0.1
listen.owner = www
listen.group = www
listen.mode = 0666
user = www
group = www
pm = dynamic
pm.max_children = 10
pm.start_servers = 2
pm.min_spare_servers = 1
pm.max_spare_servers = 6
request_terminate_timeout = 100
request_slowlog_timeout = 0
slowlog = var/log/slow.log

php-frm.log error log
[17-Sep-2018 21:12:23] WARNING: [pool www] child 20874 exited on signal 11 (SIGSEGV-core dumped) after 8428.414089 seconds from start
[17-Sep-2018 21:12:23] NOTICE: [pool www] child 26731 started

php has prompted to install the module
root@jingmian-TUF:/usr/local/php/var/log-sharp / usr/local/php/bin/php-m

[PHP Modules]
bcmath
Core
ctype
curl
date
dom
ereg
filter
ftp
gd
gettext
hash
iconv
intl
json
libxml
mbstring
mcrypt
mhash
mysql
mysqli
mysqlnd
openssl
pcntl
pcre
PDO
pdo_mysql
pdo_sqlite
Phar
posix
Reflection
session
shmop
SimpleXML
soap
sockets
SPL
sqlite3
standard
sysvsem
tokenizer
xml
xmlreader
xmlrpc
xmlwriter
xsl
Zend Guard Loader
zip
zlib

[Zend Modules]
Zend Guard Loader

jingmian@jingmian-TUF:~$ curl -V
curl 7.58.0 (x86_64-pc-linux-gnu) libcurl/7.58.0 OpenSSL/1.1.0g zlib/1.2.11 libidn2/2.0.4 libpsl/0.19.1 (+libidn2/2.0.4) nghttp2/1.30.0 librtmp/2.3
Release-Date: 2018-01-24
Protocols: dict file ftp ftps gopher http https imap imaps ldap ldaps pop3 pop3s rtmp rtsp smb smbs smtp smtps telnet tftp 
Features: AsynchDNS IDN IPv6 Largefile GSS-API Kerberos SPNEGO NTLM NTLM_WB SSL libz TLS-SRP HTTP2 UnixSockets HTTPS-proxy PSL 
jingmian@jingmian-TUF:~$

Local curl

jingmian@jingmian-TUF:/home/wwwlogs$ curl https://www.sojson.com/api/qqmusic/8446666
curl: (7) Failed to receive SOCKS4 connect request ack.
jingmian@jingmian-TUF:/home/wwwlogs$ curl http://www.sojson.com/api/qqmusic/8446666
curl: (7) Failed to receive SOCKS4 connect request ack.
jingmian@jingmian-TUF:/home/wwwlogs$ curl http://www.baidu.com
curl: (7) Failed to receive SOCKS4 connect request ack.
jingmian@jingmian-TUF:/home/wwwlogs$ curl http://www.sojson.com/api/qqmusic/8446666

3.php test file

<?php
$header=array(
"Accept: application/json",
"Content-Type: application/json;charset=utf-8",
);
$get_token_url="https://www.sojson.com/api/qqmusic/8446666";
//$get_token_url="https://www.baidu.com";
$ch = curl_init();

curl_setopt($ch,CURLOPT_URL,$get_token_url);

curl_setopt($ch,CURLOPT_HEADER,0);

curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); //

curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false); //

curl_setopt($ch,CURLOPT_RETURNTRANSFER,0 );
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
//curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,10);

$res = curl_exec($ch);
$b=curl_error($ch);var_dump($b);die();
var_dump($res);  //
?>

what result do you expect? What is the error message actually seen?

I wonder if it was the problem with my upgrade system that led to 502 in the 5.x version of curl https. I just didn"t have to reinstall the system. Is there any other way to solve it? My php7 version is normal, all using the same Nginx version agent