PHP echo文件内容

Question

我有一个pdf文件,位于我的网页根目录下.我想../cvs使用php向我的用户提供文件.

这是我的代码:

header('Content-type: application/pdf');

$file = file_get_contents('/home/eamorr/sites/eios.com/www/cvs/'.$cv);
echo $file;

但是当我打电话给这个php页面时,没有任何内容被打印 我想简单地提供存储名称所在的pdf文件$cv(例如$cv = 'xyz.pdf').

对这个PHP页面的ajax响应返回pdf(gobbldy-gook!)的文本,但是我想要文件,而不是gobbldy-gook!

我希望这是有道理的.

提前谢谢了,

---

这是我正在使用的AJAX

$('#getCurrentCV').click(function(){
    var params={
        type: "POST",
        url: "./ajax/getCV.php",
        data: "",
        success: function(msg){
            //msg is gobbldy-gook!
        },
        error: function(){

        }
    };
    var result=$.ajax(params).responseText;
});

我希望提示用户下载文件.

Answer 1

不要使用XHR(Ajax),只需链接到下面的脚本即可.脚本输出的HTTP标头将指示浏览器下载文件,因此用户不会离开当前页面.

<?php
// "sendfile.php"

//remove after testing - in particular, I'm concerned that our file is too large, and there's a memory_limit error happening that you're not seeing messages about.
error_reporting(E_ALL);
ini_set('display_errors',1);

$file = '/home/eamorr/sites/eios.com/www/cvs/'.$cv;

//check sanity and give meaning error messages
// (also, handle errors more gracefully here, you don't want to emit details about your
//  filesystem in production code)
if (! file_exists($file)) die("$file does not exist!");
if (! is_readable($file)) die("$file is unreadable!");

//dump the file
header('Cache-Control: public'); 
header('Content-Type: application/pdf');
header('Content-Disposition: attachment; filename="some-file.pdf"');
header('Content-Length: '.filesize($file));

readfile($file);

?>

然后,简化您的javascript:

$('#getCurrentCV').click(function(){
     document.location.href="sendfile.php";
});