How to add a space between every sequence of four characters (like a credit card number)?

Question

How to split this string :

56A19E6D77828

into format like this :

56A1 9E6D 7782 8

Are there any native PHP functions built for this?

Answer 1

You can use str_split()

$card = "56A19E6D77828";
echo join(" ", str_split($card, 4));

Outputs:

56A1 9E6D 7782 8