Installing WordPress in Drupal’s sub directory

Last week one of my clients asked me to move her blog which is using wordpress to a new server under Drupal sub directory. So for example the main website is www.mywebsite.com and this main site is using Drupal and I have to setup wordpress under blog directory or www.mywebsite.com/blog/.  As you know that Drupal htaccess file will intercept all requests to the main site and that will cause some problems to the wordpress site. Then what should we do is:

Update Drupal Htaccess

edit Drupal htaccess file so that it will exclude blog directory, we just need to add this line of code RewriteCond %{REQUEST_URI} !^blog before processing index.php, here is the complete code:

# Pass all requests not referring directly to files in the filesystem to
# index.php. Clean URLs are handled in drupal_environment_initialize().
RewriteCond %{REQUEST_URI} !^blog
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI} !=/favicon.ico
RewriteRule ^ index.php [L]

Update WordPress Htaccess

edit you WordPress htaccess file. we will add RewriteBase line since the wordpress will run under /blog directory and also we will update the rewrite rule to index.php file. here is the complete code:

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /blog/
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /blog/index.php [L]
</IfModule>

That’s it now your wordpress will run under Drupal subdirectory without a problem