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A simple library to encode and decode JSON Web Tokens (JWT) in PHP, conforming to RFC 7519.
Use composer to manage your dependencies and download PHP-JWT:
composer require firebase/php-jwt
<?php
use \Firebase\JWT\JWT;
$key = "example_key";
$token = array(
"iss" => "http://example.org",
"aud" => "http://example.com",
"iat" => 1356999524,
"nbf" => 1357000000
);
/**
* IMPORTANT:
* You must specify supported algorithms for your application. See
* https://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-40
* for a list of spec-compliant algorithms.
*/
$jwt = JWT::encode($token, $key);
$decoded = JWT::decode($jwt, $key, array('HS256'));
print_r($decoded);
/*
NOTE: This will now be an object instead of an associative array. To get
an associative array, you will need to cast it as such:
*/
$decoded_array = (array) $decoded;
/**
* You can add a leeway to account for when there is a clock skew times between
* the signing and verifying servers. It is recommended that this leeway should
* not be bigger than a few minutes.
*
* Source: http://self-issued.info/docs/draft-ietf-oauth-json-web-token.html#nbfDef
*/
JWT::$leeway = 60; // $leeway in seconds
$decoded = JWT::decode($jwt, $key, array('HS256'));
?>
<?php
use \Firebase\JWT\JWT;
$privateKey = <<<EOD
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----
EOD;
$publicKey = <<<EOD
-----BEGIN PUBLIC KEY-----
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC8kGa1pSjbSYZVebtTRBLxBz5H
4i2p/llLCrEeQhta5kaQu/RnvuER4W8oDH3+3iuIYW4VQAzyqFpwuzjkDI+17t5t
0tyazyZ8JXw+KgXTxldMPEL95+qVhgXvwtihXC1c5oGbRlEDvDF6Sa53rcFVsYJ4
ehde/zUxo6UvS7UrBQIDAQAB
-----END PUBLIC KEY-----
EOD;
$token = array(
"iss" => "example.org",
"aud" => "example.com",
"iat" => 1356999524,
"nbf" => 1357000000
);
$jwt = JWT::encode($token, $privateKey, 'RS256');
echo "Encode:\n" . print_r($jwt, true) . "\n";
$decoded = JWT::decode($jwt, $publicKey, array('RS256'));
/*
NOTE: This will now be an object instead of an associative array. To get
an associative array, you will need to cast it as such:
*/
$decoded_array = (array) $decoded;
echo "Decode:\n" . print_r($decoded_array, true) . "\n";
?>
JWT::verify
to handle OpenSSL errors.
See #159. Thanks @bshaffer!array
type hinting to decode
method
See #101. Thanks @hywak!$timestamp
instead of time()
to improve unit testing. See #93 for details. Thanks to @josephmcdermott!5.2.0
to 5.3.0
.\Firebase\JWT
namespace. See
#59 for details. Thanks to
@Dashron!JWT::encode()
. See
#53 for details. Thanks to
@mcocaro!JWT:decode()
that accounts for clock skew
between signing and verifying entities. Thanks to @lcabral!ArrayAccess
interface for
$keys
argument in JWT::decode()
. Thanks to @aztech-dev!JWT::decode(...)
to require an array of supported
algorithms to use when verifying token signatures.Run the tests using phpunit:
$ pear install PHPUnit
$ phpunit --configuration phpunit.xml.dist
PHPUnit 3.7.10 by Sebastian Bergmann.
.....
Time: 0 seconds, Memory: 2.50Mb
OK (5 tests, 5 assertions)
If your private key contains \n
characters, be sure to wrap it in double quotes ""
and not single quotes ''
in order to properly interpret the escaped characters.