PHP implements the function of encrypting and decrypting strings in a unit time

This article introduces the use of PHP to implement a unit-time string encryption and decryption function, that is, this function can be in a specified time, the encryption of the restore string, time-out cannot be restored. Have a friend in need, see below. Share the function of encrypting and decrypting strings within a unit of time. The string can be encrypted and restored within the specified time, and the timeout is invalid. More used for single sign-on token encryption transmission, temporary password and so on. Here is the implementation code: 0) && substr ($result, ten, +) = = substr (MD5 ($result, $keyb), 0, (+)) {return substr ($result, +);} else {return ';}} else {return $KEYC. Str_replace (' = ', ' ', Base64_encode ($result));}}? >

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