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php多檔案上傳下載範例程式碼

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php多檔案上傳下載範例程式碼 

<html><head>    <meta charset="utf-8">    <title>index_uploads</title></head><body>    <form action="uploads.php" method="post" enctype="multipart/form-data">        <input type="file" name="file[]">        <br>        <input type="file" name="file[]">        <br>        <input type="file" name="file[]">        <br>        <input type="file" name="file[]">        <br>        <input type="file" name="file[]">        <br>        <input type="submit" value="uploads">    </form></body></html>

index_uploads.php

<?php    echo "<pre>";    print_r($_FILES);    echo "</pre>";    $count = count($_FILES['file']['name']);    for ($i = 0; $i < $count; $i++) {        $tmpfile = $_FILES['file']['tmp_name'][$i];        $filefix = array_pop(explode(".", $_FILES['file']['name'][$i]));        $dstfile = "uploads/files/".time()."_".mt_rand().".".$filefix;        if (move_uploaded_file($tmpfile, $dstfile)) {            echo "<script>alert('succeed!');window.location.href='listdir.php';</script>";        } else {            echo "<script>alert('fail!');window.location.href='index_uploads.php';</script>";        }    }

uploads.php

<?php    header("content-type:text/html;charset=utf-8");    $dirname = "uploads/files";    function listdir($dirname) {        $ds = opendir($dirname);        while ($file = readdir($ds)) {            $path = $dirname.'/'.$file;            if ($file != '.' && $file != '..'){                if (is_dir($path)) {                    listdir($path);                } else {                    echo "<tr>";                    echo "<td><img src='$path'></td>";                    echo "<td><a href='download.php?imgfile=$file'>Download</a></td>";                    echo "</tr>";                }            }        }    }     echo "<h2>圖片下載|<a href='index_uploads.php'>圖片上傳</a></h2>";    echo "<table width='700px' border='1px'>";    listdir($dirname);    echo "</table>";

listdir.php

<?php    $imgfile = $_GET['imgfile'];    $path = './uploads/files/'.$imgfile;    $imgsize = filesize($path);    header("content-type:application/octet-stream");    header("content-disposition:attachment;filename={$imgfile}");    header("content-length:{$imgsize}");    readfile($path);download.php

download.php

核心下載：

header("content-type:application/octet-stream");header("content-disposition:attachment;filename={$imgfile}");header("content-length:{$imgsize}");readfile($path);

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