Htaccess Mod Rewrite issue - .htaccess

Question

I want the following url:
http://localhost/new/post?url=sample-post-one
to Look Like this via htaccess mod_rewrite:
http://localhost/new/post/sample-post-one/
This might be a question asked already or a similar one but I have been trying to figure it out since a couple of hours and did not get to a solution.
Any help will be highly appreciated. Thanks!
Update
Here's what I've tried
<Files .htaccess,.svn> order allow,deny deny from all </Files>
Options +FollowSymlinks
# For Removing .php extension from files
RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME}\.php -f
RewriteRule ^(.*)$ $1.php
# Rewrite rule
RewriteRule ^post/([a-zA-Z0-9_-]+)/?$ post?url=$1 [L]

Answer 1

This should work :
RewriteEngine on
RewriteRule ^post/([^/.]+)/?$ post?url=$1 [L]
Or better ...
RewriteEngine on
RewriteRule ^post/([a-zA-Z0-9_-]+)/?$ post?url=$1 [L]
By the way, you should have a look to guides like this one.

Answer 2

You can use below code:
http://localhost/new/post?url=sample-post-one
RewriteRule ^post/([0-9]+)/?$ post?url=$1 [NC,L] # Handle post requests
and to get more information you can refer to this

Answer 3

Basically we're capturing the bit for the last folder. The rest can be hard coded. Also you should delete the competing rule. ^ indicates beginning of string. $ is the end of the string. If you use both of those characters everything has to literally match except for the bits where we're using REGEX patterns for matching. Also everything is case sensitive.
RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^new/post/([^/]+)/?$ new/post?url=$1
If you know that you're only going to allow letters, numbers, periods, and hyphens, then you can do this:
RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^new/post/([^A-Za-z0-9.-]+)/?$ new/post?url=$1
If for some reason you're including new/post and post is really your document root it should look like this:
RewriteEngine on
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^([^A-Za-z0-9.-]+)/?$ ?url=$1
Apache is a well documented application. They provide an excellent resource with hundreds of examples on their site with explanations of each in the mod_rewrite documentation.