Insert character after each 8 character

Question

i have one string called dvojka value is 0110111101101010 It's a binary. And I need to insert character "-" after each 8 chracter, because one character is 8 bits. Is there some way using PHP? Thank you.

Answer 1

wordwrap ?

$output = wordwrap($dvojka,8,'-',true);

The 3rd parameter is required as the string your breaking up doesn't have any whitespace

Example : http://codepad.org/sbhBe5pb