New line in PHP array -

doing print_r on array produces:

array (     [0] => dogs     [1] => cats      [2] => birds )

the newline between cats , birds causing problem. did following , spacing still persists: array_walk($arr,'trim');

what can done remove spacing?

array_walk returns boolean. use array_map instead:

$arr = array_map("trim", $arr);

And