$token = $_POST['token']; if(checkToken($token)){ // token is valid, perform action } else{ // token is not valid, do not perform action }
function validateToken($token){ if(checkToken($token)){ return true; } else{ return false; } }In the above example, the `validateToken` function is created which uses the `checkToken` function to validate a token. If the token is valid, it returns true, else false. The `checkToken` function is a part of the PHP library called the "Token Authentication Library". This library is used to generate and validate authentication tokens.