separate with commas

Question

hey there I have this,

$following_user_id .= $row[\'following_user_id\'];

and I get

44443344330

then I use th

Answer 1

You can split the string into an array of characters, then implode the array.

$array = preg_split('//', $following_user_id, -1, PREG_SPLIT_NO_EMPTY);

echo implode( ',', $array );