Automatisch hochgeladenes Bild nach einiger Zeit löschen PHP

Question

Ich habe eine Anwendung erstellt, um Bilder mit PHP, Javascript und WAMP-Server hochzuladen. Ich muss das hochgeladene Bild nach einiger Zeit automatisch löschen, sagen wir X Minuten. Wie kann das erreicht werden?

Dank ...

Answer 1

diese Lösung Versuchen:

<?php 
     /** 
     * FileName: ajax-processor.php 
     */ 
     $uploadDir = __DIR__ . "/uploads"; // HERE: YOU SPECIFY THE PATH TO THE UPLOAD DIRECTORY 
     $action  = isset($_POST['action']) ? htmlspecialchars(trim($_POST['action']))  : null; 
     $imageAge = isset($_POST['imageAge']) ? htmlspecialchars(trim($_POST['imageAge'])) : 24; 

     // IF AJAX TELLS US TO DELETE ALL IMAGES & GIVES US THE MAXIMUM AGE OF THE IMAGES TO BE DELETED 
     // WE NOW FIRE THE COMMANDS BELOW. 
     // NOTE THAT USING THE imageAge WE CAN DECIDE THE FILES THAT WOULD BE DELETED SINCE WE DON'T WANT ALL DELETED 
     // THE DEFAULT HERE WOULD BE 24 HOURS... 
     if($action=="delete" && $imageAge>0){ 
      $deletionReport = removeImagesInFolder($uploadDir, $imageAge); 
      return json_encode($deletionReport); 
     } 

     function getImagesInFolder($dir_full_path){ 
      $returnable  = array(); 
      $files_in_dir = scandir($dir_full_path); 
      $reg_fx   = '/(\.png$)|(\.jpg$)|(\.jpeg$)|(\.tiff$)/'; 
      foreach($files_in_dir as $key=>$val){ 
       $temp_file_or_dir = $dir_full_path . DIRECTORY_SEPARATOR . $val; 
       if(is_file($temp_file_or_dir) && preg_match($reg_fx, $val)){ 
        $regx_dot_wateva   = '/\.{2,4}$/'; 
        $regx_dot     = '/\./'; 
        $regx_array     = array($regx_dot_wateva, $regx_dot); 
        $replace_array    = array("", "_"); 
        $return_val     = preg_replace($regx_array, $replace_array, $val); 
        $returnable[$return_val] = $temp_file_or_dir ; 
       }else if(is_dir($temp_file_or_dir) && !preg_match('/^\..*/', $val)){ 
        getImagesInFolder($temp_file_or_dir); 
       } 
      } 
      return $returnable; 
     } 

     function removeImagesInFolder($imgFolder, $imageAgeInHours=24){ 
      //CHANGE FILE-PERMISSION ON THE IMAGE DIRECTORY SO YOU COULD WORK WITH IT. 
      chmod($imgFolder, 0755); 

      $arrImages   = getImagesInFolder($imgFolder); 
      $statusReport  = array(); 
      foreach($arrImages as $imgKey=>$imageFile){ 
       $imageAgeInSecs  = $imageAgeInHours*60*60; 
       if (file_exists($imageFile)) { 
        $now   = time(); 
        $fileModTime = filemtime($imageFile); 
        $fileAge  = ($now - $fileModTime); 

        if($fileAge >= $imageAgeInSecs){ 
         /* BE CAREFUL: THE GIVEN FILE WOULD ACTUALLY BE DELETE!!! */ 
         //HERE IS A LITTLE ADDITION FOR PERMISSION ISSUES 
         //NOTE THAT I DID NOT TEST THIS SINCE I AM NOT ON A WINDOWS SYSTEM & I DON'T USE WAMP... BUT I THINK THIS MAY DO THE TRICK 
         //CHANGE FILE-PERMISSION ON THE IMAGE FILE SO YOU COULD DELETE IT. 
         chmod($imageFile, 0755); //GIVES THE ADMINISTRATOR RIGHT TO DO EVERYTHING WITH THE FILE; BUT ALLOWS ONLY READING/EXECUTION FOR OTHER USERS. 
         if(unlink($imageFile)) { 

          $statusReport[] = "Deleted " . $imageFile . ". This File is about " . ($fileAge/(24 * 60 * 60)) . " Day(s) Old."; 
         } 
        } 
       } 
      } 
      return $statusReport; 
     } 

    ?> 

Hier ist die Javascript, die den gesamten Prozess klebt ...

<script type="text/javascript"> 
     (function($) { 
      $(document).ready(function(){ 
       var iInterval = setInterval(deleteImagesViaAjax, 1000*60+60); //DELETE IMAGES EVERY HOUR 

       function deleteImagesViaAjax(){ 
        $.ajax({ 
         url: "http://localhost/framework/ajax-processor.php", 
         dataType: "json", 
         cache: false, 
         type: "POST", 
         data: ({ 
          action  : 'delete', 
          imageAge : 24   //MAXIMUM AGE OF THE IMAGE TO DELETE IN HOURS - THIS MEANS ALL IMAGES UPLOADED ABOUT 24 HOURS AGO 
         }), 

         success: function (data, textStatus, jqXHR) { 
          console.log(data); 
         }, 

         error: function (jqXHR, textStatus, errorThrown) { 
          console.log('The following error occured: ' + textStatus, errorThrown); 
         }, 

         complete: function (jqXHR, textStatus) { 
         } 
        }); 
       } 

      }); 
     })(jQuery); 
    </script> 

Answer 2

Cron-Job ist das richtige Werkzeug Sie benötigen. Cron in Windows ist ein wenig schwer zu erreichen mit php. Wenn Sie ein Framework verwenden, ist es einfach, es zu tun. Aber die folgenden Links helfen Ihnen, Ihr Ziel zu erreichen.

How to create cron job using PHP?

Run Cron Job on PHP Script, on localhost in Windows