Online PHP editor | output for 14lsP

@ 2014-02-06T07:32:10Z

<?php
function base64UrlDecode($input)
{
    return base64_decode(strtr($input, '-_', '+/'));
}

$signed_request = 'rs25bODttOJd3JIA8EW7xSA-wDNJGVBqallNSqftfxA.eyJpbnN0YW5jZUlkIjoiMTJlODMwNzAtNmRhNy0yNjU1LWVhNTktODc0MWZjYmQ1MWFkIiwic2lnbkRhdGUiOiIyMDE0LTAyLTA2VDAxOjE0OjI4LjMwNC0wNjowMCIsInVpZCI6IjBhNGZiZjFhLTRkNDMtNDU1ZC1iMzk5LTFkOTA0MTgyZWZjMiIsInBlcm1pc3Npb25zIjoiT1dORVIiLCJpcEFuZFBvcnQiOiIyMTIuMjkuMTkyLjE0LzY1Mjg1IiwidmVuZG9yUHJvZHVjdElkIjoiIiwiZGVtb01vZGUiOmZhbHNlfQ';
list($encoded_sig, $payload) = explode('.', $signed_request, 2);

$sig = base64UrlDecode($encoded_sig);
$data = json_decode(base64UrlDecode($payload), true);
$expected_sig = hash_hmac('sha256', $payload, $this->secret, $raw = true);
echo $expected_sig;

Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: Fatal error: Uncaught Error: Using $this when not in object context in /in/14lsP:12 Stack trace: #0 {main} thrown in /in/14lsP on line 12
Process exited with code 255.
Output for 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28: Fatal error: Using $this when not in object context in /in/14lsP on line 12
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6: Fatal error: Call to undefined function json_decode() in /in/14lsP on line 11
Process exited with code 255.
Output for 4.4.5 - 4.4.9: Fatal error: Call to undefined function: json_decode() in /in/14lsP on line 11
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4: Fatal error: Call to undefined function: json_decode() in /in/14lsP on line 11
Process exited with code 255.
Output for 4.3.0 - 4.3.1: Fatal error: Call to undefined function: json_decode() in /in/14lsP on line 11

preferences:dark modelive preview