在尝试了以上所有方法都没有效果之后，考虑重新启动你的电脑。解决了我的。

我也遇到过类似的问题，但我的解决方法不同。 存放PHP代码的文件名为somename。html 把它改为" someename .php"工作得很好

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。

我在Ubuntu上运行Apache，我的问题是/etc/apache2/mods-available/php5.conf文件缺少这个:

<FilesMatch ".+\.ph(p[345]?|t|tml)$">
    SetHandler application/x-httpd-php
</FilesMatch>

我把它添加回来，php正确地解析php文件。

我在High Sierra (OS X 10.13.5)附带的php 7.1上遇到了这个问题，编辑/etc/apache2/httpd.conf进行以下更改有帮助:

取消注释这行 LoadModule php7_module libexec/apache2/libphp7.so 将下面的粘贴到末尾 < IfModule php7_module > AddType application/x-httpd-php .php AddType application/x-httpd-php-source .php < IfModule dir_module > DirectoryIndex index.html index.php < / IfModule > < / IfModule >

如果你使用Apache 2.4，在httpd.conf文件中添加AddType application/x-httpd-php .php