php下實現檔案下載實現代碼_PHP教程

文章介紹了利用php來實現讀取檔案並且下載的代碼，php要下載檔案必須用到header函數，大家可參考一下。

代碼如下

複製代碼

$file = 'monkey.gif'; if (file_exists($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; } ?>

以上代碼是下載代碼

接下來貼一段線上預覽pdf檔案的代碼

代碼如下

複製代碼

public function fddAction() { // get attachment location $attachment_location = $_SERVER["DOCUMENT_ROOT"] . "/pdf/fdd/sample.pdf"; if (file_exists($attachment_location)) { // attachment exists // send open pdf dialog to user header('Cache-Control: public'); // needed for i.e. header('Content-Type: application/pdf'); header('Content-Disposition: inline; filename="sample.pdf"'); readfile($attachment_location); die(); // stop execution of further script because we are only outputting the pdf } else { die('Error: File not found.'); } } ?>

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