PHP urlsafeB64Decode()

1 개요

PHP urlsafeB64Encode()

with padding

function base64url_decode($input) { 
    return base64_decode(strtr($input, '-_', '+/').str_repeat("=",-strlen($input) & 3));
} 
echo base64url_decode('SGVsbG8gV29ybGQ='); # Hello World

without padding ★

# https://github.com/firebase/php-jwt/blob/feb0e820b8436873675fd3aca04f3728eb2185cb/src/JWT.php#L333
function urlsafeB64Decode($input)
{
    $remainder = strlen($input) % 4;
    if ($remainder) {
        $padlen = 4 - $remainder;
        $input .= str_repeat('=', $padlen);
    }
    return base64_decode(strtr($input, '-_', '+/'));
}
echo urlsafeB64Encode('SGVsbG8gV29ybGQ'); # Hello World

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