php多文件上传下载示例代码

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php多文件上传下载示例代码

<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>

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index_uploads.php

<?php
    echo "<pre class="brush:php;toolbar:false">";
    print_r($_FILES);
    echo "

"; $count = count($_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>"; } }

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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 = $dirname.&#39;/&#39;.$file;
            if ($file != &#39;.&#39; && $file != &#39;..&#39;){
                if (is_dir($path)) {
                    listdir($path);
                } else {
                    echo "<tr>";
                    echo "<td><img src=&#39;$path&#39;></td>";
                    echo "<td><a href=&#39;download.php?imgfile=$file&#39;>Download</a></td>";
                    echo "</tr>";
                }
            }
        }
    } 
    echo "<h2>图片下载|<a href=&#39;index_uploads.php&#39;>图片上传</a></h2>";
    echo "<table width=&#39;700px&#39; border=&#39;1px&#39;>";
    listdir($dirname);
    echo "</table>";

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listdir.php

<?php
    $imgfile = $_GET[&#39;imgfile&#39;];
    $path = &#39;./uploads/files/&#39;.$imgfile;
    $imgsize = filesize($path);
    header("content-type:application/octet-stream");
    header("content-disposition:attachment;filename={$imgfile}");
    header("content-length:{$imgsize}");
    readfile($path);
download.php

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download.php

核心下载：

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

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