# Input string is "ab''c" and ' is the delimiter for split.
# After "ab" there are two delimiters, hence split returns
# an array with 3 elements as show in the output below.
# But I want output to have 4 elements instead of 3. One
# empty array element for every delimiter split encounters

my @arr1 = split("'", "ab''c");
print Dumper(@arr1);

Output:
$VAR1 = 'ab';
$VAR2 = '';
$VAR3 = 'c';

I want the output to be
$VAR1 = 'ab';
$VAR2 = '';
$VAR3 = '';
$VAR4 = 'c';