這裡以nginx為例，apache思路也一樣就是指向不同php版本得fastcgi

nginx.conf檔案

user  www www;
worker_processes auto;
error_log  /www/wwwlogs/nginx_error.log  crit;
pid        /www/server/nginx/logs/nginx.pid;
worker_rlimit_nofile 51200;

events
    {
        use epoll;
        worker_connections 51200;
        multi_accept on;
    }

http
    {
        include       mime.types;
        default_type  application/octet-stream;

        server_names_hash_bucket_size 128;
        client_header_buffer_size 32k;
        large_client_header_buffers 4 32k;
        client_max_body_size 50m;

        sendfile   on;
        tcp_nopush on;

        keepalive_timeout 60;

        tcp_nodelay on;

        fastcgi_connect_timeout 300;
        fastcgi_send_timeout 300;
        fastcgi_read_timeout 300;
        fastcgi_buffer_size 64k;
        fastcgi_buffers 4 64k;
        fastcgi_busy_buffers_size 128k;
        fastcgi_temp_file_write_size 256k;
                fastcgi_intercept_errors on;

        gzip on;
        gzip_min_length  1k;
        gzip_buffers     4 16k;
        gzip_http_version 1.1;
        gzip_comp_level 2;
        gzip_types     text/plain application/javascript application/x-javascript text/javascript text/css application/xml;
        gzip_vary on;
        gzip_proxied   expired no-cache no-store private auth;
        gzip_disable   "MSIE [1-6]\.";

        limit_conn_zone $binary_remote_addr zone=perip:10m;
                limit_conn_zone $server_name zone=perserver:10m;

        server_tokens off;
        access_log off;

server
    {
        listen 888;
        server_name www.bt.cn;
        index index.html index.htm index.php;
        root  /www/server/phpmyadmin;

        #error_page   404   /404.html;
        include enable-php.conf;

        location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$
        {
            expires      30d;
        }

        location ~ .*\.(js|css)?$
        {
            expires      12h;
        }

        location ~ /\.
        {
            deny all;
        }

        access_log  /www/wwwlogs/access.log;
    }
include /www/server/panel/vhost/nginx/*.conf;
}
 

注意最後一行這裡配置了多個專案，單獨配置然後引入了，我們去開啟其中一個server看看

server
{
    listen 80;
        listen 443 ssl;
    server_name api.at.cn;
    index index.php index.html index.htm default.php default.htm default.html;
    root /www/wwwroot/api.at.cn;

    #SSL-START SSL相關配置，請勿刪除或修改下一行帶註釋的404規則
    #error_page 404/404.html;
    #HTTP_TO_HTTPS_START
    if ($server_port !~ 443){
        rewrite ^(/.*)$ https://$host$1 permanent;
    }
    #HTTP_TO_HTTPS_END
    ssl_certificate    /etc/letsencrypt/live/api.at.cn/fullchain.pem;
    ssl_certificate_key    /etc/letsencrypt/live/api.at.cn/privkey.pem;
    ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
    ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:HIGH:!aNULL:!MD5:!RC4:!DHE;
    ssl_prefer_server_ciphers on;
    ssl_session_cache shared:SSL:10m;
    ssl_session_timeout 10m;
    error_page 497  https://$host$request_uri;

    #SSL-END

    #ERROR-PAGE-START  錯誤頁配置，可以註釋、刪除或修改
    error_page 404 /404.html;
    error_page 502 /502.html;
    #ERROR-PAGE-END

    #PHP-INFO-START  PHP引用配置，可以註釋或修改
    include enable-php-70.conf;
    #PHP-INFO-END

    #REWRITE-START URL重寫規則引用,修改後將導致面板設定的偽靜態規則失效
    include /www/server/panel/vhost/rewrite/api.at.cn.conf;
    #REWRITE-END

    #禁止訪問的檔案或目錄
    location ~ ^/(\.user.ini|\.htaccess|\.git|\.svn|\.project|LICENSE|README.md)
    {
        return 404;
    }

    #一鍵申請SSL證書驗證目錄相關設定
    location ~ \.well-known{
        allow all;
    }

    location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$
    {
        expires      30d;
        error_log off;
        access_log off;
    }

    location ~ .*\.(js|css)?$
    {
        expires      12h;
        error_log off;
        access_log off;
     }
     access_log  /www/wwwlogs/api.at.cn.log;
     error_log  /www/wwwlogs/api.at.cn.error.log;
}

     
    
 

   注意上面有一行引用了php7得配置檔案
    include enable-php-70.conf;

 代表這個專案用的是php7版本

 我們去看看 enable-php-70.conf 這個檔案

  location ~ [^/]\.php(/|$)
        {
            try_files $uri =404;
            fastcgi_pass  127.0.0.1:9000;
            fastcgi_index index.php;
            include fastcgi.conf;
            include pathinfo.conf;
        }
 

再看看 enable-php-56.conf 坐下對比

 location ~ [^/]\.php(/|$)
        {
            try_files $uri =404;
            fastcgi_pass  127.0.0.1:9001;
            fastcgi_index index.php;
            include fastcgi.conf;
            include pathinfo.conf;
        }

如上只要監聽不同的 埠就行了，以上是不同php版本的php-fpm啟動時監聽的埠，預設為9000埠

那這個埠哪裡改呢

find / -name php-fpm.conf

看下里面引入的哪個配置

; Default Value: 0
;process_control_timeout = 0

; The maximum number of processes FPM will fork. This has been design to control
; the global number of processes when using dynamic PM within a lot of pools.
; Use it with caution.
; Note: A value of 0 indicates no limit
; Default Value: 0
; process.max = 128

; Specify the nice(2) priority to apply to the master process (only if set)
; The value can vary from -19 (highest priority) to 20 (lower priority)
; Note: - It will only work if the FPM master process is launched as root
;       - The pool process will inherit the master process priority
;         unless it specified otherwise
; Default Value: no set
; process.priority = -19

; Send FPM to background. Set to 'no' to keep FPM in foreground for debugging.
; Default Value: yes
daemonize = yes

; Set open file descriptor rlimit for the master process.
; Default Value: system defined value
;rlimit_files = 1024

; Set max core size rlimit for the master process.
; Possible Values: 'unlimited' or an integer greater or equal to 0
; Default Value: system defined value
;rlimit_core = 0

; Specify the event mechanism FPM will use. The following is available:
; - select     (any POSIX os)
; - poll       (any POSIX os)
; - epoll      (linux >= 2.5.44)
; - kqueue     (FreeBSD >= 4.1, OpenBSD >= 2.9, NetBSD >= 2.0)
; - /dev/poll  (Solaris >= 7)
; - port       (Solaris >= 10)
; Default Value: not set (auto detection)
;events.mechanism = epoll

; When FPM is build with systemd integration, specify the interval,
; in second, between health report notification to systemd.
; Set to 0 to disable.
; Available Units: s(econds), m(inutes), h(ours)
; Default Unit: seconds
; Default value: 10
;systemd_interval = 10

;;;;;;;;;;;;;;;;;;;;
; Pool Definitions ;
;;;;;;;;;;;;;;;;;;;;

; Multiple pools of child processes may be started with different listening
; ports and different management options.  The name of the pool will be
; used in logs and stats. There is no limitation on the number of pools which
; FPM can handle. Your system will tell you anyway :)

; Include one or more files. If glob(3) exists, it is used to include a bunch of
; files from a glob(3) pattern. This directive can be used everywhere in the
; file.
include=/etc/php-fpm.d/*.conf

 看最後一行

引入的檔案進入看看，我下面是www.conf

; Start a new pool named 'www'.
[www]

; Unix user/group of processes
; Note: The user is mandatory. If the group is not set, the default user's group
;       will be used.
; RPM: apache Choosed to be able to access some dir as httpd
user = apache
; RPM: Keep a group allowed to write in log dir.
group = apache

; The address on which to accept FastCGI requests.
; Valid syntaxes are:
;   'ip.add.re.ss:port'    - to listen on a TCP socket to a specific IPv4 address on
;                            a specific port;
;   '[ip:6:addr:ess]:port' - to listen on a TCP socket to a specific IPv6 address on
;                            a specific port;
;   'port'                 - to listen on a TCP socket to all addresses
;                            (IPv6 and IPv4-mapped) on a specific port;
;   '/path/to/unix/socket' - to listen on a unix socket.
; Note: This value is mandatory.
listen = 127.0.0.1:9001

; Set listen(2) backlog.
; Default Value: 511 (-1 on FreeBSD and OpenBSD)
;listen.backlog = 511

; Set permissions for unix socket, if one is used. In Linux, read/write
; permissions must be set in order to allow connections from a web server. Many
; BSD-derived systems allow connections regardless of permissions.
; Default Values: user and group are set as the running user
;                 mode is set to 0660
;listen.owner = nobody
;listen.group = nobody
;listen.mode = 0660
; When POSIX Access Control Lists are supported you can set them using
; these options, value is a comma separated list of user/group names.
; When set, listen.owner and listen.group are ignored
;listen.acl_users =
;listen.acl_groups =

; List of addresses (IPv4/IPv6) of FastCGI clients which are allowed to connect.
; Equivalent to the FCGI_WEB_SERVER_ADDRS environment variable in the original
; PHP FCGI (5.2.2+). Makes sense only with a tcp listening socket. Each address
; must be separated by a comma. If this value is left blank, connections will be
; accepted from any ip address.
; Default Value: any
listen.allowed_clients = 127.0.0.1

; Specify the nice(2) priority to apply to the pool processes (only if set)
; The value can vary from -19 (highest priority) to 20 (lower priority)
; Note: - It will only work if the FPM master process is launched as root
;       - The pool processes will inherit the master process priority
;         unless it specified otherwise
; Default Value: no set
; process.priority = -19

; Choose how the process manager will control the number of child processes.
; Possible Values:
;   static  - a fixed number (pm.max_children) of child processes;
;   dynamic - the number of child processes are set dynamically based on the
;             following directives. With this process management, there will be

修改這裡就好了 

listen = 127.0.0.1:9001

配置完記得重啟nginx