how to generate unique token in php code example

Example: generate token in php

<?php

// Thanks to: https://thisinterestsme.com/generating-random-token-php/

//Generate a random string.
$token = openssl_random_pseudo_bytes(16);
 
//Convert the binary data into hexadecimal representation.
$token = bin2hex($token);
 
//Print it out for example purposes.
echo $token;

?>