我在 Ubuntu 22.04.1 LTS 上安装了以下 Ubuntu 存储库包：
dpkg -l apache2 php php-fpm libapache2-mod-php libapache2-mod-fcgid
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-====================-=================-============-=========================================================================
ii apache2 2.4.52-1ubuntu4.1 amd64 Apache HTTP Server
ii libapache2-mod-fcgid 1:2.3.9-4 amd64 FastCGI interface module for Apache 2
ii libapache2-mod-php 2:8.1+92ubuntu1 all server-side, HTML-embedded scripting language (Apache 2 module) (default)
ii php 2:8.1+92ubuntu1 all server-side, HTML-embedded scripting language (default)
ii php-fpm 2:8.1+92ubuntu1 all server-side, HTML-embedded scripting language (FPM-CGI binary) (default)
$ apache2 -v
Server version: Apache/2.4.52 (Ubuntu)
Server built: 2022-06-14T12:30:21
$ php -v
PHP 8.1.2-1ubuntu2.6 (cli) (built: Sep 15 2022 11:30:49) (NTS)
Copyright (c) The PHP Group
Zend Engine v4.1.2, Copyright (c) Zend Technologies
with Zend OPcache v8.1.2-1ubuntu2.6, Copyright (c), by Zend Technologies
但是php8.1不使用 php 处理程序时php8.1-fpm，浏览器会显示 PHP 源代码。
我的 VirtualHost 中有以下配置：
$ grep -1 php/ /etc/apache2/sites-enabled/helpdesk.media-participations.com-ssl.conf
<FilesMatch \.php$>
SetHandler "proxy:unix:/run/php/php8.1-fpm.sock|fcgi://localhost/"
</FilesMatch>
状态如下：
$ \ls -l /run/php/php8.1-fpm.*
-rw-r--r-- 1 root root 5 Nov 4 15:10 /run/php/php8.1-fpm.pid
srw-rw---- 1 www-data www-data 0 Nov 4 15:10 /run/php/php8.1-fpm.sock
$ a2query -m | grep php
php8.1 (enabled by site administrator)
$ sudo a2dissite 000-default
Site 000-default disabled.
To activate the new configuration, you need to run:
systemctl reload apache2
$ sudo systemctl reload apache2
$ systemctl status apache2
● apache2.service - The Apache HTTP Server
Loaded: loaded (/lib/systemd/system/apache2.service; enabled; vendor preset: enabled)
Active: active (running) since Fri 2022-11-04 16:22:18 CET; 2s ago
Docs: https://httpd.apache.org/docs/2.4/
Process: 76811 ExecStart=/usr/sbin/apachectl start (code=exited, status=0/SUCCESS)
Main PID: 76816 (apache2)
Tasks: 7 (limit: 9365)
Memory: 17.7M
CPU: 102ms
CGroup: /system.slice/apache2.service
├─76816 /usr/sbin/apache2 -k start
├─76817 /usr/sbin/apache2 -k start
├─76818 /usr/sbin/apache2 -k start
├─76819 /usr/sbin/apache2 -k start
├─76820 /usr/sbin/apache2 -k start
├─76821 /usr/sbin/apache2 -k start
└─76822 /usr/sbin/apache2 -k start
Nov 04 16:22:18 my-server systemd[1]: Starting The Apache HTTP Server...
Nov 04 16:22:18 my-server apachectl[76814]: AH00558: apache2: Could not reliably determine the server_s fully qualified domain name, using 127.0.1.1. Set the 'ServerName'>
Nov 04 16:22:18 my-server systemd[1]: Started The Apache HTTP Server.
$ apachectl configtest
AH00558: apache2: Could not reliably determine the server_s fully qualified domain name, using 127.0.1.1. Set the 'ServerName' directive globally to suppress this message
Syntax OK
$ systemctl status php8.1-fpm.service
● php8.1-fpm.service - The PHP 8.1 FastCGI Process Manager
Loaded: loaded (/lib/systemd/system/php8.1-fpm.service; enabled; vendor preset:>
Active: active (running) since Fri 2022-11-04 15:10:01 CET; 1h 22min ago
Docs: man:php-fpm8.1(8)
Process: 76090 ExecStartPost=/usr/lib/php/php-fpm-socket-helper install /run/php>
Main PID: 76087 (php-fpm8.1)
Status: "Processes active: 0, idle: 2, Requests: 0, slow: 0, Traffic: 0req/sec"
Tasks: 3 (limit: 9365)
Memory: 11.1M
CPU: 471ms
CGroup: /system.slice/php8.1-fpm.service
├─76087 "php-fpm: master process (/etc/php/8.1/fpm/php-fpm.conf)" "" "">
├─76088 "php-fpm: pool www" "" "" "" "" "" "" "" "" "" "" "" "" "" "" ">
└─76089 "php-fpm: pool www" "" "" "" "" "" "" "" "" "" "" "" "" "" "" ">
Nov 04 15:10:01 my-server systemd[1]: Starting The PHP 8.1 FastCGI Process Manager>
Nov 04 15:10:01 my-server systemd[1]: Started The PHP 8.1 FastCGI Process Manager.
$ ps -fC php-fpm8.1
UID PID PPID C STIME TTY TIME CMD
root 76087 1 0 15:10 ? 00:00:00 php-fpm: master process (/etc/php/8.1/fpm/php-fpm.conf)
www-data 76088 76087 0 15:10 ? 00:00:00 php-fpm: pool www
www-data 76089 76087 0 15:10 ? 00:00:00 php-fpm: pool www
$ sudo cat /var/log/php8.1-fpm.log
[04-Nov-2022 14:15:53] NOTICE: fpm is running, pid 68585
[04-Nov-2022 14:15:53] NOTICE: ready to handle connections
[04-Nov-2022 14:15:53] NOTICE: systemd monitor interval set to 10000ms
[04-Nov-2022 14:15:54] NOTICE: Terminating ...
[04-Nov-2022 14:15:54] NOTICE: exiting, bye-bye!
[04-Nov-2022 14:15:54] NOTICE: fpm is running, pid 68708
[04-Nov-2022 14:15:54] NOTICE: ready to handle connections
[04-Nov-2022 14:15:54] NOTICE: systemd monitor interval set to 10000ms
[04-Nov-2022 14:50:38] NOTICE: Terminating ...
[04-Nov-2022 14:50:38] NOTICE: exiting, bye-bye!
[04-Nov-2022 15:10:01] NOTICE: fpm is running, pid 76067
[04-Nov-2022 15:10:01] NOTICE: ready to handle connections
[04-Nov-2022 15:10:01] NOTICE: systemd monitor interval set to 10000ms
[04-Nov-2022 15:10:01] NOTICE: Terminating ...
[04-Nov-2022 15:10:01] NOTICE: exiting, bye-bye!
[04-Nov-2022 15:10:01] NOTICE: fpm is running, pid 76087
[04-Nov-2022 15:10:01] NOTICE: ready to handle connections
[04-Nov-2022 15:10:01] NOTICE: systemd monitor interval set to 10000ms
以下是我得到的结果：
$ curl -k https://localhost/info.php
<?php
phpinfo();
phpinfo(INFO_MODULES);
?>
看起来 PHP 代码没有被服务器解释。
我怎样才能解决这个问题 ？
答案1
Apache 无法解释 PHP 的原因可能有很多。根据您分享的内容，启用proxy_fcgi模块应该可以解决问题。运行sudo a2enmod proxy_fcgi并重新启动 Apache 应该就足够了。
但是，在下面的代码中，我添加了一些额外的命令（在您的特定情况下可能不需要），但如果这不能解决问题，请运行它们。
sudo a2enmod proxy
sudo a2enmod proxy_fcgi
sudo a2enmod setenvif
sudo a2enconf php8.1-fpm
sudo service apache2 restart