iOS Duplicate Photos Finder

iosDupFind.php

<?php
    $map = array();

    $base = '/path/to';

    foreach (scandir($base) as $file) {
        if ($name[0] === '.') {
            continue;
        }

        $key = call_user_func(function($file) {
            $pos = strpos($file, ' ');

            if ($pos === false) {
                return $file;
            }

            $pos2 = strrpos($file, '.');

            if ($pos2 === false) {
                return substr($file, 0, $pos);
            }

            return substr($file, 0, $pos) . substr($file, $pos);
        }, $file);

        if (isset($map[$key]) === false) {
            $map[$key] = array();
        }

        $ref =& $map[$key];

        $size = filesize("$base/$file");

        isset($ref[$size]) === true ?
            $ref[$size][] = $file :
            $ref[$size] = array($file);
    }

    echo '<pre>', print_r($map, true), '</pre>';
?>