Apache doesn't execute php files, but mod_php5 is enabled

Question

I don't understand why. Instead of execute php files, he services me as download.

In the downloaded file there is php source.

My test file is very simple, its called info.php

<?php

phpinfo();

My virtual host:

<VirtualHost some_ip:80>
DocumentRoot /var/www/vhosts/my_vhost/htdocs
ServerName www.my_vhost.com

<Directory /var/www/vhosts/my_vhost/htdocs/>
    Options All -MultiViews
    AllowOverride None
    Order allow,deny
    allow from all
</Directory>

ErrorLog  /var/www/vhosts/my_vhost/logs/error.log
LogLevel warn   
CustomLog /var/www/vhosts/my_vhost/logs/access.log combined

</VirtualHost>

In the apache2 conf i have the line:

AddType application/x-httpd-php .php

Apache enabled modules:

apache2ctl -M
Loaded Modules:
 core_module (static)
 log_config_module (static)
 logio_module (static)
 mpm_prefork_module (static)
 http_module (static)
 so_module (static)
 actions_module (shared)
 alias_module (shared)
 auth_basic_module (shared)
 auth_digest_module (shared)
 authn_file_module (shared)
 authz_default_module (shared)
 authz_groupfile_module (shared)
 authz_host_module (shared)
 authz_user_module (shared)
 autoindex_module (shared)
 bw_module (shared)
 cgi_module (shared)
 dav_module (shared)
 dav_fs_module (shared)
 dav_lock_module (shared)
 dav_svn_module (shared)
 authz_svn_module (shared)
 deflate_module (shared)
 dir_module (shared)
 env_module (shared)
 fcgid_module (shared)
 include_module (shared)
 mime_module (shared)
 negotiation_module (shared)
 perl_module (shared)
 php5_module (shared)
 python_module (shared)
 reqtimeout_module (shared)
 rewrite_module (shared)
 setenvif_module (shared)
 ssl_module (shared)
 status_module (shared)
 suexec_module (shared)
 userdir_module (shared)
 wsgi_module (shared)
Syntax OK

What i have to try to debug and solve this?

I have phpmyadmin installed too and it works correctly.

Answer 1

Found the problem.

They were 2:

• plesk, which configuration was confusing me and giving me back the file to download
• the lack of NameVirtualHost 111.22.33.44:80 in my virtual hosts

so i've excluded all the include by plesk, and then the problem was clear; the virtual host could not be resolved because there was another ip-based virtual host before that.

Thank you all for the help.