Apache はどのように PHP ページを解析しますか?

/usr/local/apache2.4/bin/apachectl start

AH00558: httpd: Could not reliably determine the server's fully qualified domain name, using localhost.localdomain. Set the 'ServerName' directive globally to suppress this message

cp /usr/local/apache2.4/conf/httpd.conf /usr/local/apache2.4/conf/httpd.conf.bak  //修改任何配置文件，先拷贝一份副本
 
vim /usr/local/apache2.4/conf/httpd.conf +195
   ServerName www.example.com:80	//在任意处新增一段ServerName

vim /usr/local/apache2.4/conf/httpd.conf
 
把 <Directory />
    AllowOverride none
    Require all deined
    </Directory>
 
改成：
    <Directory />
  AllowOverride none
    Require all granted
   </Directory>
 
  
默认情况下httpd不支持解析php页面，为了能让httpd与php结合，需要新增一些配置内容
 AddType application/x-httpd-php .php
 
 
还需要增加一个目录索引
 
<IfModule dir_module>
    DirectoryIndex index.html index.php
</IfModule>
 
以上修改完成之后保存退出

/usr/local/apache2.4/bin/apachectl -t//使用-t检查语法，出现Syntax OK 说明配置文件没有错误

1）/usr/local/apache2.4/bin/apachectl restart//重启启动httpd服务
2）/usr/local/apache2.4/bin/apachectl graceful    //只重新加载配置文件，不重启httpd服务

vim /usr/local/apache2.4/htdocs/test.php
   <?php
   phpinfo();
   ?>