search files and filter

check1.php

<?php

if ($argc < 2) {
    die("Please pass a directory as argument\n");
}

$path = $argv[1];

if (!(new SplFileInfo($path))->isDir()) {
    die("'{$path}' is not directory!\n");
}

$recursiveIterator = new RecursiveDirectoryIterator($path);
$iterator = new RecursiveIteratorIterator($recursiveIterator);
$filesOnlyIterator = new CallbackFilterIterator($iterator, function (SplFileInfo $file) {
    return $file->isFile();
});

$dataTypesDirs = [];
$dataDirsTypes = [];
/** @var SplFileInfo $file */
foreach ($filesOnlyIterator as $file) {
    $type = strtolower($file->getExtension());
    $size = $file->getSize();
    $dir = $file->getPath();

    if (!isset($dataDirsTypes[$dir])) {
        $dataDirsTypes[$dir] = [];
    }
    if (!isset($dataTypesDirs[$type])) {
        $dataTypesDirs[$type] = [];
    }

    if (!isset($dataDirsTypes[$dir][$type])) {
        $dataDirsTypes[$dir][$type] = ['count' => 0, 'size' => 0];
    }
    if (!isset($dataTypesDirs[$type][$dir])) {
        $dataTypesDirs[$type][$dir] = ['count' => 0, 'size' => 0];
    }

    $dataDirsTypes[$dir][$type]['count']++;
    $dataTypesDirs[$type][$dir]['count']++;

    $dataDirsTypes[$dir][$type]['size'] += $size;
    $dataTypesDirs[$type][$dir]['size'] += $size;
}

$dataTypesDirsJpg = $dataTypesDirs['jpg'];
uasort($dataTypesDirsJpg, function ($a, $b) {
    return $a['size'] - $b['size'];
});

foreach ($dataTypesDirsJpg as $dir => $data) {
    $sizeFormatted = str_pad(number_format($data['size'] / 1024 / 1024, 3), 10, ' ', STR_PAD_LEFT) . ' MB';
    $countFormatted = str_pad($data['count'], 5, ' ', STR_PAD_LEFT);
    $avgSizeFormatted = str_pad(number_format($data['size'] / 1024 / $data['count'], 3), 10, ' ', STR_PAD_LEFT) . ' kB';
    echo "{$sizeFormatted}\t{$countFormatted}\t{$avgSizeFormatted}\t{$dir}\n";
}