Access jQuery node's children and its values using PHP to enter into db -

can please me out in problem. in real trouble , don't know how go ahead this.

i have tr tag contains multiple div tags in it.
whenever user clicks on 'add' link, same tr gets cloned incremented id , appended table.

now, want enter under each tr mysql database using php. don't know how this.

the hierarchy this:
tr-->td-->div(many)-->input fields(many) chkbox,textarea,radio,input

deadline project nearing , stucked upon this.

have tried using serialize values of input fields?

you should able $('tr:selected').serialize()

it'd easier if had kind of jsfiddle example of problem.