Question

我整天都在处理这段代码，但由于某些原因，在计时器用完后文件不会被删除。$ zip_file_name是我希望在30秒后看到的文件

    $the_folder = '../test';
$zip_file_name = ("PHOENIX_fullbackup_$now.zip");


$download_file= true;
//$delete_file_after_download= true; doesnt work!!


class FlxZipArchive extends ZipArchive {
    /** Add a Dir with Files and Subdirs to the archive;;;;; @param string $location Real Location;;;;  @param string $name Name in Archive;;; @author Nicolas Heimann;;;; @access private  **/

    public function addDir($location, $name) {
        $this->addEmptyDir($name);

        $this->addDirDo($location, $name);
     } // EO addDir;

    /**  Add Files & Dirs to archive;;;; @param string $location Real Location;  @param string $name Name in Archive;;;;;; @author Nicolas Heimann
     * @access private   **/
    private function addDirDo($location, $name) {
        $name .= '/';
        $location .= '/';

        // Read all Files in Dir
        $dir = opendir ($location);
        while ($file = readdir($dir))
        {
            if ($file == '.' || $file == '..') continue;
            // Rekursiv, If dir: FlxZipArchive::addDir(), else ::File();
            $do = (filetype( $location . $file) == 'dir') ? 'addDir' : 'addFile';
            $this->$do($location . $file, $name . $file);
        }
    } // EO addDirDo();
}

$za = new FlxZipArchive;
$res = $za->open($zip_file_name, ZipArchive::CREATE);
if($res === TRUE) 
{
    $za->addDir($the_folder, basename($the_folder));
    $za->close();
}
else  { echo 'Could not create a zip archive';}

if ($download_file)
{
    ob_get_clean();
    header("Pragma: public");
    header("Expires: 0");
    header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
    header("Cache-Control: private", false);
    header("Content-Type: application/zip");
    header("Content-Disposition: attachment; filename=" . basename($zip_file_name) . ";" );
    header("Content-Transfer-Encoding: binary");
    header("Content-Length: " . filesize($zip_file_name));
    readfile($zip_file_name);


  if ($handle = opendir ($zip_file_name)) {

    while (false !== ($file = readdir($handle))) {
        if (filectime($file)< (time()-30)) {  // timer -30secs
          unlink($file);
        }
    }
  }

}
?>

非常感谢任何帮助。谢谢

Answer 1

您可以在生成zip文件之前删除zip文件（如果已存在） - 以便在生成新文件之前先删除旧文件：

E.g。（你的代码片段）

<?php

// Delete previous zip files
$old_files = glob($the_folder .'/*.zip');
foreach ($old_files as $old_file) {
    unlink($old_file);
}

// Usage
$za = new FlxZipArchive;
$res = $za->open($zip_file_name, ZipArchive::CREATE);
if ($res === TRUE) 
{
    // Add Files to Zip
    $za->addDir($the_folder, basename($the_folder));
    $za->close();

    // Download If enabled
    if ($download_file)
    {
        ob_get_clean();
        header("Pragma: public");
        header("Expires: 0");
        header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
        header("Cache-Control: private", false);
        header("Content-Type: application/zip");
        header("Content-Disposition: attachment; filename=" . basename($zip_file_name) . ";" );
        header("Content-Transfer-Encoding: binary");
        header("Content-Length: " . filesize($zip_file_name));
        readfile($zip_file_name);
    }
}
else
{
    echo 'Could not create a zip archive';
}

?>

计时器后PHP自动删除文件

1 个答案: