Re: Replace credit card numbers with X ???

Joe Harman wrote:

Hello, I need to replace all the numbers of a credit card except for the last 4 with an 'X' ... can't seem to locate the string function for this... can someone point me in the right direction here to what php item i should be using.

that'll be: string php_replace_all_but_last_four_chars_of_creditcard_number(string input[, string pad_string]) actually that func doesn't exist - what you need to do (well its one way to do it) is use a combination of substr() and str_pad() e.g: echo str_pad(substr($cc, -4), 20, 'X', STR_PAD_LEFT); where $cc is the previously checked/verified/sanitized creditcard no. and 20 is the length of a creditcard no. - forgive me if I'm wrong about the CC number length, I don't have a creditcard.

Thanks! Joe