php-Mask processing of bank card numbers

1. The implementation code is as follows

/** * Mask processing of the bank card number * @param string $bankCardNo bank card number * @return The bank card number after the string mask */function Formatbankcardno ($ban Kcardno) {//Intercept bank card number Top 4 $prefix = substr ($bankCardNo, 0,4);//intercept bank card number after 4 bit $suffix = substr ($bankCardNo, -4,4); $ Maskbankcardno = $prefix. * * * * * * * * *. $suffix; return $maskBankCardNo;}

This article is from the "Yan" blog, please be sure to keep this source http://suyanzhu.blog.51cto.com/8050189/1937157

php-Mask processing of bank card numbers