TEST DATA
NULL
string(1) "1"
0
string(1) "2"
0
string(1) "2"
string(0) ""
e
string(1) "W"
string(0) ""
u
string(1) "p"
l
string(1) "c"
l
string(1) "c"
string(0) ""
e
string(1) "w"
string(0) ""
string(0) ""
0
string(1) "2"
0
string(1) "2"
string(0) ""
NULL
t
string(1) "h"
NULL
a
string(1) "p"
string(0) ""
string(1) "0"
a
string(1) "r"