JWT example

JWT.example.php

<?php 

// tutorial: https://www.youtube.com/watch?v=k3KfK0ZS_FY
// debuger: https://jwt.io/
// lcobucci/jwt

// Generate
// - - - - - 

function token(){
	

	//key
	$key = 'macaco';

	//header
	$header = [
		'typ' => 'JWT',
		'alg' => 'HS256'
	];

	$header = json_encode($header);

	$header = base64_encode($header);

	//payload
	$payload = [
		'iss' => 'madeinnordeste.com.br', //reservado
		'username' => 'madeinnordeste',
		'email' => '[email protected]'
	];

	$payload = json_encode($payload);

	$payload = base64_encode($payload);


	//signature
	$signature = hash_hmac('sha256', "$header.$payload", $key, true);

	$signature = base64_encode($signature);

	$token = "$header.$payload.$signature";

	return $token;

}


$received_token = token();

echo "\n\n";
echo $received_token;
echo "\n\n";

if( $received_token === token() ){
	echo "token valid";
}else{
	echo "token invalid";
}