.htaccess not working with 'post' requests

[bitsoft]

I'm using the .htaccess code below to hide .php in the url. It works fine, however all POST requests do not work afterwards. For example, all form submissions stopped working unless I changed them to GET.

Please help take a look why this is happening and a way out.

Options +FollowSymLinks -MultiViews
# Turn mod_rewrite on
RewriteEngine On
# RewriteBase /

# To externally redirect /dir/foo.php to /dir/foo
RewriteCond {3bc1fe685386cc4c3ab89a3f76566d8931e181ad17f08aed9ad73b30bf28114d}{THE_REQUEST} ^[A-Z]{3,}\s([^.]+)\.php [NC]
RewriteRule ^ {3bc1fe685386cc4c3ab89a3f76566d8931e181ad17f08aed9ad73b30bf28114d}1 [R,L,NC]

## To internally redirect /dir/foo to /dir/foo.php
RewriteCond {3bc1fe685386cc4c3ab89a3f76566d8931e181ad17f08aed9ad73b30bf28114d}{REQUEST_FILENAME}.php -f [NC]
RewriteRule ^ {3bc1fe685386cc4c3ab89a3f76566d8931e181ad17f08aed9ad73b30bf28114d}{REQUEST_URI}.php [L]