php如何隱藏下載地址

2020-10-05 18:01:02

php隱藏下載地址的方法:使用PHP中header方法,程式碼為【header("Cache-Control: must-revalidate, post-check=0, pre-check=0");】。

php隱藏下載地址的方法:

php隱藏實際檔案下載地址的方法涉及php中header與file_get_contents方法的相關使用技巧

實現方法一:

function download_document($filename,$path="",$mimetype="application/octet-stream")
{
 header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
 header("Content-Disposition: attachment; filename = $filename");
 header("Content-Length: " . filesize($pathto . $filename));
 header("Content-Type: $mimetype");
 echo file_get_contents($pathto . $filename);
}

實現方法二:

<?php
$file = "1.txt";// 檔案的真實地址(支援url,不過不建議用url)
if (file_exists($file)) {
  header('Content-Description: File Transfer');
  header('Content-Type: application/octet-stream');
  header('Content-Disposition: attachment; filename='.basename($file));
  header('Content-Transfer-Encoding: binary');
  header('Expires: 0');
  header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
  header('Pragma: public');
  header('Content-Length: ' . filesize($file));
  ob_clean();
  flush();
  readfile($file);
  exit;
}
?>

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