Thanks for reply. surprisedly value of $cui. raw $cui1 are not as expected AS it uniq ids not hash.

here is the o/p after running above:
i       :405
size w  :2
w       : 'severe'| 'sunburn'
w[0]    : severe
w[1]    : sunburn
size w  :2
t1      : severe
t2      : sunburn
raw  cu1:ARRAY(0x1dcf698)
size cu1:0
cu1     :
new  cu1:ARRAY(0x1dcf698)
raw  cu2:ARRAY(0x1dcf6e0)
size cu2:0
cu2     :
new  cu2:ARRAY(0x1dcf6e0)

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In reply to Re^2: Use of uninitialized value $cui1 in print by Raksha Jalan
in thread Use of uninitialized value $cui1 in print by Raksha Jalan

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