3v4l.org

run code in 300+ PHP versions simultaneously
<?php $t = '/"(securityPin)[\]*":[\]*"(.)[^"\]+[\]*"/'; echo preg_replace($t, '"\${1}\":\"${2}***\"', str_replace('":""', '":"*"', '3\",\"securityPin\":\"35515\",\"salutation'));

preferences:
40.19 ms | 402 KiB | 5 Q