index_uploads.php
复制代码 代码如下:
<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="submit" value="uploads">
    </form>
</body>
</html>

uploads.php
复制代码 代码如下:
<?php
            header("content-type:text/html;charset=utf-8");
            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="index_uploads.php";</script>";
                } else {
                    echo "<script>alert("fail!");window.location.href="index_uploads.php";</script>";
                }
            }

核心：<1>上传首页中input的name属性是这么设置的。

　　　<2>用while循环上传多文件。