BinaryReader string/resource memory usage comparison

test.php

<?php

require_once __DIR__.'/vendor/autoload.php';

$file = 'test.mp3';
// Load class into memory
class_exists('\PhpBinaryReader\BinaryReader');

echo "Test file size: ".filesize($file)."\n\n";

echo "String:\n";
echo "Before: ".memory_get_usage()."\n";
$binaryReader = new \PhpBinaryReader\BinaryReader(file_get_contents($file));
echo "After: ".memory_get_usage()."\n";
unset($binaryReader);

echo "\n\n";
echo "Resource:\n";
echo "Before: ".memory_get_usage()."\n";
$binaryReader = new \PhpBinaryReader\BinaryReader(fopen($file, 'r'));
echo "After: ".memory_get_usage()."\n";


/*
Test file size: 5278541

String:
Before: 556544
After: 5842696


Resource:
Before: 563096
After: 564344
*/