我的 WordPress 主页显示：
<?php
/**
* Front to the WordPress application. This file doesn't do anything, but loads
* wp-blog-header.php which does and tells WordPress to load the theme.
*
* @package WordPress
*/
/**
* Tells WordPress to load the WordPress theme and output it.
*
* @var bool
*/
define('WP_USE_THEMES', true);
/** Loads the WordPress Environment and Template */
require( dirname( __FILE__ ) . '/wp-blog-header.php' );
我的平台：Ubuntu 16.04我正在使用阿帕奇.我该如何解决这个问题？
apache2 -M | grep php输出：
[Mon Nov 13 06:58:35.785748 2017] [core:warn] [pid 20486] AH00111: Config variable ${APACHE_LOCK_DIR} is not defined
[Mon Nov 13 06:58:35.785929 2017] [core:warn] [pid 20486] AH00111: Config variable ${APACHE_PID_FILE} is not defined
[Mon Nov 13 06:58:35.786020 2017] [core:warn] [pid 20486] AH00111: Config variable ${APACHE_RUN_USER} is not defined
[Mon Nov 13 06:58:35.786087 2017] [core:warn] [pid 20486] AH00111: Config variable ${APACHE_RUN_GROUP} is not defined
[Mon Nov 13 06:58:35.786164 2017] [core:warn] [pid 20486] AH00111: Config variable ${APACHE_LOG_DIR} is not defined
[Mon Nov 13 06:58:35.790530 2017] [core:warn] [pid 20486:tid 140021226223488] AH00111: Config variable ${APACHE_LOG_DIR} is not defined
[Mon Nov 13 06:58:35.790931 2017] [core:warn] [pid 20486:tid 140021226223488] AH00111: Config variable ${APACHE_LOG_DIR} is not defined
[Mon Nov 13 06:58:35.791163 2017] [core:warn] [pid 20486:tid 140021226223488] AH00111: Config variable ${APACHE_LOG_DIR} is not defined
AH00526: Syntax error on line 74 of /etc/apache2/apache2.conf:
Invalid Mutex directory in argument file:${APACHE_LOCK_DIR}
sudo dpkg --get-selections | grep php输出：
libapache2-mod-php install
libapache2-mod-php7.0 install
php install
php-common install
php-curl install
php-gd install
php-gettext install
php-mbstring install
php-mcrypt install
php-mysql install
php-pear install
php-phpseclib install
php-tcpdf install
php-xml install
php-xmlrpc install
php7.0 install
php7.0-cli install
php7.0-common install
php7.0-curl install
php7.0-gd install
php7.0-json install
php7.0-mbstring install
php7.0-mcrypt install
php7.0-mysql install
php7.0-opcache install
php7.0-readline install
php7.0-xml install
php7.0-xmlrpc install
phpmyadmin install
systemctl 状态 apache2.service输出：
* apache2.service - LSB: Apache2 web server
Loaded: loaded (/etc/init.d/apache2; bad; vendor preset: enabled)
Drop-In: /lib/systemd/system/apache2.service.d
`-apache2-systemd.conf
Active: failed (Result: exit-code) since Mon 2017-11-13 07:12:52 EST; 5min ago
Docs: man:systemd-sysv-generator(8)
Process: 20848 ExecStop=/etc/init.d/apache2 stop (code=exited, status=0/SUCCESS)
Process: 19096 ExecReload=/etc/init.d/apache2 reload (code=exited, status=0/SUCCESS)
Process: 20898 ExecStart=/etc/init.d/apache2 start (code=exited, status=1/FAILURE)
Nov 13 07:12:52 student apache2[20898]: * The apache2 configtest failed.
Nov 13 07:12:52 student apache2[20898]: Output of config test was:
Nov 13 07:12:52 student apache2[20898]: [Mon Nov 13 07:12:51.996158 2017] [:crit] [pid 20909:tid 139772608190336] Apache is running a threaded MPM, but your PHP Module is not compiled to be threadsafe. You need
Nov 13 07:12:52 student apache2[20898]: AH00013: Pre-configuration failed
Nov 13 07:12:52 student apache2[20898]: Action 'configtest' failed.
Nov 13 07:12:52 student apache2[20898]: The Apache error log may have more information.
Nov 13 07:12:52 student systemd[1]: apache2.service: Control process exited, code=exited status=1
Nov 13 07:12:52 student systemd[1]: Failed to start LSB: Apache2 web server.
Nov 13 07:12:52 student systemd[1]: apache2.service: Unit entered failed state.
Nov 13 07:12:52 student systemd[1]: apache2.service: Failed with result 'exit-code'.
答案1
您必须安装带有 Apache 配置的 php 模块。尝试以下命令安装相同的模块
sudo apt-get install php7.0 libapache2-mod-php7.0
然后使用以下命令重新启动 apache
sudo service apache2 restart
请注意，您的 php 版本可能会根据您的 Ubuntu 发行版而改变。
更新 ：
根据日志看来您已将默认 MPM 更改为工人在 apache 配置中，php 模块不支持线程 MPM。因此，您必须使用 php_fpm 或 mod_fcgid 以线程 MPM 执行 php，否则请切换 apache 以使用预分叉最大行程长度。
您可以在这里获得安装 php-fpm 的分步详细信息 https://www.howtoforge.com/tutorial/apache-with-php-fpm-on-ubuntu-16-04/