php基础练习--文件上传

浏览数：59 / 时间：2015年06月09日

php基础练习--文件上传：

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

uploads_index.php

<?php
            
            $tmpfile = $_FILES[‘file‘][‘tmp_name‘];
            $filetype = array_shift(explode("/", $_FILES[‘file‘][‘type‘]));   //上传文件的mime类型
            $filename = $_FILES[‘file‘][‘name‘];
            $filefix = array_pop(explode(".", $_FILES[‘file‘][‘name‘]));     //上传文件后缀名

            if ($filetype == ‘image‘) {
                $dstfile = "uploads/imgs/".time()."_".mt_rand().".".$filefix;
            } else {
                $dstfile = "uploads/files/".time()."_".mt_rand().".".$filefix;
            }
            

            $filearr = array(‘gif‘, ‘jpg‘, ‘png‘);     //允许上传类型
            $filesize = $_FILES[‘file‘][‘size‘];   //上传文件的大小
            $fileerror = $FILES[‘file‘][‘error‘];   //错误编号

            if ($fileerror === 0) {    
                if (in_array($filefix, $filearr)) {     //判断是否符合上传允许类型
                    if ($filesize <= 35840) {          //上传大小限制
                        if (move_uploaded_file($tmpfile, $dstfile)) {
                            echo "<script>alert(‘succeed!‘);location.href=‘uploads_index.php‘;</script>";
                        } else {
                            echo "<script>alert(‘fail!‘);location.href=‘uploads_index.php‘;</script>";
                        }
                    } else {
                        echo "<script>alert(‘pass filesize!‘);</script>";
                    }
                } else {
                    echo "<script>alert(‘type fail!‘);</script>";
                }
            } else {
                echo "<script>alert(‘error!!!‘);</script>";
            }