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explanation of threaded comments

http://www.oracle.com/technetwork/articles/dsl/white-php-part2-355138.html

The same concept can apply to other aspects of your application as well. If you think about a typical blog, the homepage only shows a list of posts. Any comments to those posts are displayed only on a permalink page. Retrieving those comments for any given post can be a potentially painful process, given there can be any number of them. It’s further complicated if the site allows threaded comments because finding and assembling those threads can be intense.


what is a real world example of threaded comments
what is a php example of threaded comments
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rgb192
Asked:
rgb192
2 Solutions
 
Jagadishwor DulalBraces MediaCommented:
Fast Relational method of storing tree data. Means like you are creating a comment page that may be related with an article and a particular user and also a particular user can get replay it create a large comment while it has different article id user id and comment id.
See wikipedia for more details.
http://en.wikipedia.org/wiki/Conversation_threading
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Ray PaseurCommented:
Threaded comments appear in many bulletin-board applications.  Any of the BB apps written in PHP will give you a real-world PHP example.

Example of one popular BB:
https://www.phpbb.com/

Collection of popular BB:
http://en.wikipedia.org/wiki/Comparison_of_Internet_forum_software

A computer science concept that is necessary:
https://en.wikipedia.org/wiki/Linked_list
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rgb192Author Commented:
thanks
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