# Dependant entries: Does anybody know how to do this?

**URL:** <https://forum.kirupa.com/t/dependant-entries-does-anybody-know-how-to-do-this/268694>\
**Category:** programming\
**Created:** [August 17, 2008, 11:16am UTC](https://forum.kirupa.com/t/dependant-entries-does-anybody-know-how-to-do-this/268694 "2008-08-17T11:16:32Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![technocrat](https://avatars.discourse-cdn.com/v4/letter/t/ac8455/32.png) [@technocrat](https://forum.kirupa.com/u/technocrat)\
**Post date:** [August 17, 2008, 11:16am UTC](https://forum.kirupa.com/t/dependant-entries-does-anybody-know-how-to-do-this/268694/1 "2008-08-17T11:16:32Z")

</div>

I’ll try keep this question as simple as possible:

#FRONTEND :

[LIST=1]  
[_]User selects items (from predefined list): “itemx, itemy”  
[_]database is updated.  
[\*]cycle is repeated.  
[/LIST]  
#BACKEND

[LIST=1]  
[_]php enters itemx, itemy into database (single entry).  
[_]php _should_ find out what components of itemx, itemy are (stored in another table, with key as itemid)  
[\*]increment use of componentx, componenty of respective item.  
[/LIST]  
please do help, i know this is a little confusing, but if you are able to, i’ll be most grateful to you! please do ask if something is not clear.