我有一個簡單的下載腳本，可以在下面找到：if (isset($_GET['name'])){ $name = $_GET['name']; $stmt = $conn->prepare("SELECT link_to_policy FROM policies WHERE name = ? LIMIT 1"); $stmt->bind_param('s', $name); $stmt->execute(); $result = $stmt->get_result(); $result2 = $result->fetch_assoc(); $policytodownload = $result2["link_to_policy"]; if (file_exists($policytodownload)) { header("Content-Type: application/vnd.openxmlformats-officedocument.wordprocessingml.document"); header("Content-Type: application/msword"); header("Content-Type: application/pdf"); header('Content-Disposition: attachment'); header("Cache-Control: no-cache"); header('Content-Length: ' . filesize($policytodownload)); ob_clean(); flush(); readfile($policytodownload); exit; } } link_to_policy 列包含保存策略的文件的完整路徑。點擊鏈接后，文件被下載，但點擊文件后，即使是word文檔，我在Chrome中收到錯誤信息（所有PDF文件都是在那里打開的）：Failed to load PDF文檔。你能幫我么？謝謝！
1 回答
慕尼黑8549860
TA貢獻1818條經驗 獲得超11個贊
不要發送多個Content-type標頭，發送文件擴展名的適當類型。
if (isset($_GET['name'])){
$name = $_GET['name'];
$stmt = $conn->prepare("SELECT link_to_policy FROM policies WHERE name = ? LIMIT 1");
$stmt->bind_param('s', $name);
$stmt->execute();
$result = $stmt->get_result();
$result2 = $result->fetch_assoc();
$policytodownload = $result2["link_to_policy"];
if (file_exists($policytodownload)) {
$type_map = ['xls' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
'doc' => 'application/msword',
'pdf' => 'application/pdf'];
$ext = pathinfo($policytodownload, PATHINFO_EXTENSION);
if (isset($type_map[$ext])) {
header("Content-Type: {$type_map[$ext]}");
}
header("Cache-Control: no-cache");
header('Content-Length: ' . filesize($policytodownload));
ob_clean();
flush();
readfile($policytodownload);
exit;
}
}
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