I need to convert following data in csv to nested tree
S.No Name 1 A 1.1 B 1.1.1 C 1.1.2 D 2 E 2.1 F 2.2 G
Is there any way
S.No can be used to make
array keys like
$test and then I can store corresponding
Name as value.
or I should make parent child type array? What would be the best approach to convert this to tree/nested list?