Where find a demo/example of one-many input web address?

["Zhidian Du" <duzhidian@xxxxxxxxxxx>]

I need to design a one-many relation input interface on web in PHP.  I want 
to find an example of it.

for example:
a university  has many department and each deaprtment has many faculty and 
students.

Where can i find a demo/example of one-many input web address?

Thanks.

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