User specific Content Plugin

So i saw a question on WordPress Answers that asked

how to display user specific content?

and i remembered that i have coded something like this before, So after a few hours of search my code and snippets files I've found it, Fixed it up a bit and now you can use it. presenting User specific Content

Screenshots:

What does it do?

This Plugin allows you to select specific users by user name, or by role name who can view a specific post content or page content.

How does it work?

Basically it adds a meta box to the post or page edit screen and lets the user select specific users by name or roles and then when you call that page content using "the_content();" function it check using "the_content" filter if the current user is one of the users you have selected or if his role match's the roles you have selected and shows the content, otherwise it displays a message which can be set in that metabox, something like:

Sorry But This Content is for specific Users Only, Maybe log-in???

Features:

• You can select any number of Users you want by there names.
• You can select any number of users Roles you want by there names.
• Easy Customization of content blocked massage.

Download:

Download the latest Version from WordPress.org

Simple Installation steps:

1. Extract the zip file and just drop the contents in the wp-content/plugins/ directory of your WordPress installation.
2. Then activate the Plugin from Plugins page.
3. Done!

Usage:

Simply create or edit post/page and you will see the User Specific Content metabox where you can select your option, then save and that is it.

ShortCode

Since Version 0.7 the plugin comes with a new shortcode (the idea cam from your great feedback and comments) which extends the plugins functionality.
Basic usage of the shortcode:

[O_U user_id="1"]Content goes here[/O_U]

where 1 is the user id. or to specify multiple users you can use:

[O_U user_id="1,2,3"]Content goes here[/O_U]

To limit content by user name use:

[O_U user_name="Bainternet"]Content goes here[/O_U]

where Bainternet is the user name. or to specify multiple users you can use:

[O_U user_name="Bainternet,Steve,david"]Content goes here[/O_U]

To limit content by user role use:

[O_U user_role="Administrator"]Content goes here[/O_U]

where Administrator is the user role. or to specify multiple user roles you can use:

[O_U user_name="Administrator,Author,Contributor"]Content goes here[/O_U]

To change the blocked massage use:

[O_U user_role="Administrator" blocked_meassage="admins only!"]admin content goes here[/O_U]

You can also use the shortcode more then once in a single post:

[O_U user_role="Administrator"]admin content goes here[/O_U]
[O_U user_name="Bainternet,Steve,david"]specific users content goes here[/O_U]

And best of all you can even use it as a template tag:

<?php echo do_shortcode('[O_U user_role="Administrator"]admin content goes here[/O_U]'); ?>

this is it, enjoy and any feedback is welcome, also make sure to submit bug if you find any.

Change Log:

• 0.9
• Added nested shortcode support, which means you can filter who sees your shortcodes
• 0.8
• quick bug fix., thanks to Amuras comment.
• 0.7
• Major update, Plugin rewritten in OOP.
• New shortcode implemented.
• New options panel to define User Specific MetaBox.
• New admin panel.
• Run filter on the_content as well as the_excerpt.
• 0.6
• Fixed all wp_debug warnings.
• 0.5
• Quick fixed WP_Debug warnings.
• 0.4
• added simply logged-in user content only!
• quick fixed block by role bug.
• 0.3
• Added support for none logged in users content only.
• 0.2
• Added page support
• 0.1
• Initial release