Apache configuration-Apache2 Configuring two-level domain name resolution cannot parse PHP?

Already in the service side of the two-level domain name of the point.
Httpd.conf:

  
   
    
           DocumentRoot /var/www/www/    ProxyPassMatch ^/(.*\.php)$ fcgi://127.0.0.1:10000/var/www/www/$1    DirectoryIndex index.html index.php
  
   
  
   
    
     DocumentRoot /var/www/www/a  ServerName a.abc.com  DirectoryIndex  index.php
  
   

Now I can access to abc.com/a through a.abc.com, but the PHP script inside can't run, which is why?

Reply content:

Already in the service side of the two-level domain name of the point.
Httpd.conf:

  
   
    
           DocumentRoot /var/www/www/    ProxyPassMatch ^/(.*\.php)$ fcgi://127.0.0.1:10000/var/www/www/$1    DirectoryIndex index.html index.php
  
   
  
   
    
     DocumentRoot /var/www/www/a  ServerName a.abc.com  DirectoryIndex  index.php
  
   

Now I can access to abc.com/a through a.abc.com, but the PHP script inside can't run, which is why?

It's so obvious that you don't have to set up a PHP forwarding agent ...

ProxyPassMatch ^/(.*\.php)$ fcgi://127.0.0.1:10000/var/www/www/a/$1

