如果我们在同一页做下面

Sudo apt-get install PHP Sudo apt-get install php-{bcmath,bz2,intl,gd,mbstring,mysql,zip,fpm} -y

要在Apache2中启用PHP 7.2 FPM，请执行以下操作:

A2enmod proxy_fcgi SetenVIF

a2enconf php7.2-fpm

更新2:Apache下载。php文件而不是渲染

在那之后，我遇到了上面的问题。还有类似的问题。

我不知道为什么，但它只发生在我的。php文件在/var/www/html/根文件夹。对于子目录来说一切正常。(例如wordpress和phpmyadmin工作得很好)

这就是我的解。我决定启用php模块。所以我运行了这个命令:

a2enmod php7.2

但我得到了这个错误:

考虑php7.2依赖mpm_prefork: 考虑mpm_prefork的冲突mpm_event: 错误:mpm_event模块已启用-由于冲突无法继续。它首先需要被禁用! 考虑mpm_prefork的冲突mpm_worker: 无法为php7.2启用依赖mpm_prefork，终止

所以我决定通过运行以下命令禁用mpm:

sudo a2dismod mpm_prefork
sudo a2dismod mpm_worker
sudo a2dismod mpm_event

然后重启apache:

Systemctl restart apache2

然后启用php7.2(我安装的版本):

Sudo a2enmod php7.2

现在一切都很好。

听起来你的配置好像有问题，下面是一些你可以检查的东西:

Make sure that PHP is installed and running correctly. This may sound silly, but you never know. An easy way to check is to run php -v from a command line and see if returns version information or any errors. Make sure that the PHP module is listed and uncommented inside of your Apache's httpd.conf This should be something like LoadModule php5_module "c:/php/php5apache2_2.dll" in the file. Search for LoadModule php, and make sure that there is no comment (;) in front of it. Make sure that Apache's httpd.conf file has the PHP MIME type in it. This should be something like AddType application/x-httpd-php .php. This tells Apache to run .php files as PHP. Search for AddType, and then make sure there is an entry for PHP, and that it is uncommented. Make sure your file has the .php extension on it, or whichever extension specified in the MIME definition in point #3, otherwise it will not be executed as PHP. Make sure you are not using short tags in the PHP file (<?), these are not enabled on all servers by default and their use is discouraged. Use <?php instead (or enable short tags in your php.ini with short_open_tag=On if you have code that relies on them). Make sure you are accessing your file over your webserver using an URL like http://localhost/file.php not via local file access file://localhost/www/file.php

最后，查看PHP手册以获得更多的设置技巧。

你只是把php文件打开到浏览器。你必须使用localhost url打开它。如果您直接从目录中打开一个文件，在任何情况下它都不会执行PHP代码。

使用:http://locahost/index.php或http:127.0.0.1/index.php

启用php短代码。在本例中，您使用<?这是<? PHP的PHP短代码。默认情况下，php短代码是禁用的。

如果你是ubuntu用户，也可以使用:sudo apt-get install php5 libapache2-mod-php5 php5-mcrypt。

检查你为php安装的所有包，使用:

yum list installed | grep remi

在你的机器上安装所有相关的php包，尤其是php-devel。

我认为问题是，它显示的代码而不是结果是，它不会去本地主机。重新检查你要去的地址。是到本地文件目录还是到本地主机。

从你发送的屏幕截图，它将到你的计算机，而不是到本地主机。

"file:/// "应该是"localhost/"

php7.3。你可以尝试安装这些模块。这对我很管用。

sudo apt-get install libapache2-mod-php7.3

sudo service apache2 restart