エスケープ文字の\t(タブ),\n(改行)で分割
Array
(
    [0] => abc
    [1] => def
    [2] => next page
    [3] => end
    [4] => 
)
デリミタを'#'として、「/ , :」の3種類の文字で分割
Array
(
    [0] => abc
    [1] => def
next
    [2] => page	end
    [3] => base
)