php not enabled in virtual hosts

[tolis]

Sorry but i moved this post from the misplaced forum.My problem is that i cannot get php enabled for my virtual hosts.
If i set defaultype text/html .php then php includes are not processed, if i remove it then the browser prompts for open or save the file.
Please help!
Below is the http.include of the virtual host
# ATTENTION!
# DO NOT MODIFY THIS FILE OR ANY PART OF IT. THIS CAN RESULT IN IMPROPER PLESK
# FUNCTIONING OR FAILURE, CAUSE DAMAGE AND LOSS OF DATA. IF YOU REQUIRE CUSTOM
# MODIFICATIONS TO BE APPLIED TO THE CONFIGURATION, PLEASE, PERFORM THEM IN THE
# FOLLOWING FILE(S):
# /var/www/vhosts/platonproject.local/conf/vhost.conf
# /var/www/vhosts/platonproject.local/subdomains/<subdomain-name>/conf/vhost.conf

<VirtualHost 192.168.210.208:80>
ServerName platonproject.local:80

UseCanonicalName Off
SuexecUserGroup platonproject psacln
ServerAdmin "[email protected]"
DocumentRoot /var/www/vhosts/platonproject.local/httpdocs
CustomLog /var/www/vhosts/platonproject.local/statistics/logs/access_log plesklog
ErrorLog /var/www/vhosts/platonproject.local/statistics/logs/error_log
<IfModule mod_userdir.c>
UserDir /var/www/vhosts/platonproject.local/web_users
</IfModule>
ScriptAlias /cgi-bin/ /var/www/vhosts/platonproject.local/cgi-bin/
Alias /plesk-stat /var/www/vhosts/platonproject.local/statistics/
Alias /webstat /var/www/vhosts/platonproject.local/statistics/webstat
Alias /webstat-ssl /var/www/vhosts/platonproject.local/statistics/webstat-ssl
Alias /ftpstat /var/www/vhosts/platonproject.local/statistics/ftpstat
Alias /anon_ftpstat /var/www/vhosts/platonproject.local/statistics/anon_ftpstat
<IfModule mod_ssl.c>
SSLEngine off
</IfModule>
<Directory /var/www/vhosts/platonproject.local/httpdocs>
<IfModule mod_perl.c>
<Files ~ (\.pl$)>
SetHandler perl-script
PerlHandler ModPerl::Registry
Options ExecCGI
allow from all
PerlSendHeader On
</Files>
</IfModule>
<IfModule mod_perl.c>
<Files ~ (\.asp$)>
SetHandler perl-script
PerlHandler Apache::ASP
PerlSetVar Global /tmp
</Files>
</IfModule>
<IfModule sapi_apache2.c>
php_admin_flag engine on
php_admin_value open_basedir "/var/www/vhosts/platonproject.local/httpdocs:/tmp"
</IfModule>
<IfModule mod_php5.c>
php_admin_flag engine on
php_admin_value open_basedir "/var/www/vhosts/platonproject.local/httpdocs:/tmp"
</IfModule>
<IfModule mod_python.c>
<Files ~ (\.py$)>
SetHandler python-program
PythonHandler mod_python.cgihandler
</Files>
</IfModule>
Options +Includes +ExecCGI
</Directory>
<Directory /var/www/vhosts/platonproject.local/web_users>
<IfModule sapi_apache2.c>
AddType text/plain .php .php4 .php3 .phtml
php_admin_flag engine off
</IfModule>
<IfModule mod_php5.c>
AddType text/plain .php .php5 .php4 .php3 .phtml
php_admin_flag engine off
</IfModule>
</Directory>
Include /var/www/vhosts/platonproject.local/conf/vhost.conf
</VirtualHost>