- var_dump: documentation ( source)
<?php
$keypair = sodium_crypto_sign_keypair();
$secret = sodium_crypto_sign_secretkey($keypair);
$public = sodium_crypto_sign_publickey($keypair);
$signature = sodium_crypto_sign_detached('test', $secret);
var_dump(sodium_crypto_sign_verify_detached($signature, 'test', $public));