Base64 native functions vs. streaming

base64.script.php

<?php

use io\streams\{FilterInputStream, FileInputStream, Streams};
use lang\Runtime;
use util\cmd\Console;
use util\profiling\Timer;

$source= $argv[1];
$method= $argv[2];

$t= new Timer();
$t->start();

$data= match ($method) {
  'native' => base64_decode(file_get_contents(
    '-' === $source ? 'php://stdin' : $source
  )),
  'streams' => Streams::readAll(new FilterInputStream(
    '-' === $source ? Console::$in->stream() : new FileInputStream($source),
    'convert.base64-decode'
  )),
};

$t->stop();

Console::writeLinef(
  '%s => %d bytes (%.3f seconds, %.2f kB peak memory)',
  $source,
  strlen($data),
  $t->elapsedTime(),
  Runtime::getInstance()->peakMemoryUsage() / 1024
);