Delete automated files

Question

Good guys, I have a system, where practically daily uploads are sent via pdf files. After a while it has a lot of accumulated file.

For example: Upo 100 PDF hj files, tomorrow I put 20. So, from the day I skipped the 100 PDF files, after 3 months it erases those 100.. the next day the same scheme and erases the 20 and so on, but it is not erased all at once.

Any idea or help?

Thanks in advance!

I have this PHP programming below,

    <?php
  $dateFormat = "d-m-Y H:i:s";
  $dir = 'uploads/*/*';

  if(isset($_POST['excluir'])){
    if($objs == glob($dir)) {
    foreach($objs as $obj) {
      if (is_dir($obj)) continue; // Verifica se o arquivo é um diretório, se for, tudo que está abaixo é desconsiderado

      $dateFile = strtotime(date($dateFormat, filemtime($obj))); // Data da última modificação do arquivo convertida em time;
      $dateToRemove = strtotime(date($dateFormat, filemtime($obj) + (60 * 5))); // Tempo da última modificação + 3 meses convertida em time;
      if($dateFile >= $dateToRemove) unlink($obj); // Exclui o arquivo se este possuir 03 meses desde a última modificação
    }
}
}
?> 

Button:

<button class="btn btn-danger" name="excluir" onclick="return confirm('Tem certeza que deseja apagar todos os Boletos?                         ATENÇÃO! ESSA AÇÃO NÃO TERÁ VOLTA!')" >APAGAR TODOS OS BOLETOS</button>

EDIT: Code edited as explained. I did tests with 1 minute, upei files, waited 1 minute.. upei a few more, I went to delete and deleted all.

Answer 1

You can make a PHP script that reads the creation date of a file to remove it using the function filectime:

$dateFormat = "Y-m-d"; // Altere para "Y-m-d H:i:s" se quiser levar em consideração os segundos.
$dateToRemove = date($dateFormat, strtotime("-3 months"));
$dir = 'uploads/*/*';

if($objs = glob($dir)) {
    foreach($objs as $obj) {
      if (is_dir($obj)) continue;
      if (date($dateFormat, filectime($obj)) > $dateToRemove) continue;
      unlink($obj);
    }
}

You can save this code in a . php file and run it from time to time. In order not to have to run manually, you can use a tool that runs scheduled scripts at intervals of time defined by you, in Linux scripts of this type are known as CRON and in Windows this feature is known as Scheduled Tasks, available through the Task Scheduler.

You can set it up manually or use an online service like the https://cron-job.org, that will call your PHP page as often as you set.

For more details about the function filectime you can consult the PHP documentation: https://www.php.net/manual/en/function.filectime.php

---

PS: You may have wondered how I write code if (condicaoFalsa) continue, but is a technique used to increase code maintainability.

You can see an example of this here (in English): https://softwareengineering.stackexchange.com/questions/47789/how-would-you-refactor-nested-if-statements

Answer 2

Hello! I noticed there’s a error syntax in your code:

if($objs = glob($dir)){

Right:

if($objs == glob($dir)){

In my view, the explanation of your problem was not very clear. I could give more details of your problem?

@EDIT - 28/05

From the answer of Keven Carneiro I adapted the script in a way that I believe will solve your problem.

$dateFormat = "d-m-Y";
$dir = 'uploads/*/*';

if($objs == glob($dir)) {
    foreach($objs as $obj) {
      if (is_dir($obj)) continue; // Verifica se o arquivo é um diretório, se for, tudo que está abaixo é desconsiderado

      $dateFile = strtotime(date($dateFormat, filemtime($obj))); // Data da última modificação do arquivo convertida em time;
      $dateToRemove = strtotime(date($dateFormat, filemtime($obj) + (3600 * 24 * 90))); // Tempo da última modificação + 3 meses convertida em time;
      if(time() >= $dateToRemove) unlink($obj); // Exclui o arquivo se este possuir 03 meses desde a última modificação
    }
}

If you want to test the difference in hours you should:

1. Change "$dateFormat" to "d-m-Y H:i:s";
2. Change the next line by changing the sum time to, for example, 3600 only. (One-hour value)

$dateToRemove = strtotime(date($dateFormat, filemtime($obj) + (3600 * 24 * 90)));

Make sure to check if the amount being received in $objs is valid to enter the first condition:

if($objs == glob($dir)) {

I tried to explain as much as possible what each function does, but you can ask questions here or consult the documentation! I hope I’ve helped.

Answer 3

Here to work I changed the date format to : $dateFormat = "Y-m-d";