_main.php

<?php
/*
location: functions/
*/
function encryptData($strings)
{
    global $token;
    return openssl_encrypt($strings, "AES-128-ECB", $token);
}
function decryptData($strings)
{
    global $token;
    return openssl_decrypt($strings, "AES-128-ECB", $token);
}

function divImageAjax($title = "Upload", $encrypted_string)
{
    global $numImageAjax;
    $kodeDiv = sprintf("%03s", $numImageAjax);
    $numImageAjax++;
    $json = decryptData($encrypted_string);

    $arDetail = json_decode($json);
    $arDetail->num = $kodeDiv;
    $encrypted_string = encryptData(json_encode($arDetail));
    $folderTarget = $arDetail->folder ?? "mydir";
    $filename = $arDetail->filename ?? "none";
    $tanggalData = $arDetail->date ?? "2024-12-12";
    $num = $arDetail->num ?? "001";
    ?>
<div><?= $title ?>
 <input type='file' id='fileAjax<?= $kodeDiv ?>' param='<?= $encrypted_string ?>' />
 <button type='button' onclick='saveFile("<?= $kodeDiv ?>")'>Upload</button><br/>
 <span id='infoFileAjax<?= $kodeDiv ?>'> <!--<?= date("d/m/Y H:i:s") ?> -->
<?= viewAttachment($folderTarget, $filename, $tanggalData, $kodeDiv) ?>
 </span>
</div>
<?php
}
function viewAttachment($folderTarget, $filename, $tanggalData, $num = 0)
{
    global $folderUpload, $minDateForYear, $password;
    $folder = folderAttachment($folderTarget, $tanggalData ?? "2024-12-12");
    $targetFiles = $folder . $filename . ".*";
    $str = "";
    $str .= "<ol>";
    foreach (glob($targetFiles) as $filename) {
        $ar = [
            "folder" => $folderTarget,
            "filename" => $filename, //sensitive
            "date" => $tanggalData ?? "2024-12-12",
            "reload" => microtime(1),
            "num" => $num,
        ];
        $string_to_encrypt = json_encode($ar);
        $encrypted_string = encryptData($string_to_encrypt);
        $x= explode("/", $filename);

        $filenameClean = end($x);
        $str .= "<li>$filenameClean <a onclick='downloadFile(\"$encrypted_string\")' target='_blank' href='#{$ar['reload']}' style='text-decoration:none'
title='download file'>&#x1F4CB;</a><a onclick='deleteFile(\"$num\", \"$encrypted_string\")'  href='#' style='text-decoration:none'
title='delete file'>&#x1F5D1;</a></li>";
    }
    $str .= "</ol>";
    return $str;
}

function folderAttachment($folderTarget, $tanggalData)
{
    global $folderUpload, $minDateForYear, $password;
    $folder = _SITEDIR_."/".$folderUpload;
    $debug = [];
    $aFolder = explode("/", $folderTarget);
    if ($tanggalData >= $minDateForYear) {
        if (count($aFolder) == 1) {
            $aFolder[] = date("_Y", strtotime($tanggalData));
        } else {
            $lastFolder = end($aFolder);
            array_pop($aFolder);
            $aFolder[] = date("_Y", strtotime($tanggalData));
            $aFolder[] = $lastFolder;
        }
    } else {

    }

    foreach ($aFolder as $folderName) {
        $folder .= "/".$folderName;
        if (!is_dir($folder)) {
            mkdir($folder);
        }
        $debug[] = "folder:" . $folder;
    }
    return $folder."/";
}
function uploadAttachment(
    $sourceFile,
    $folderTarget,
    $filename,
    $ext,
    $tanggalData
) {
    global $folderUpload, $minDateForYear, $password;
    $folder = folderAttachment($folderTarget, $tanggalData ?? "2024-12-12");
    $targetFile = $folder . $filename . ".{$ext}";
    $debug[] = "target:" . $targetFile;
    copy($sourceFile, $targetFile);
    return $targetFile;
}