• php的文件上传及下载,附带显示文件及目录


    主页面wenjianceshi.php

    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    <html xmlns="http://www.w3.org/1999/xhtml">
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>文件</title>
    <link href="../FENGZHUANG/bootstrap/css/bootstrap.min.css" rel="stylesheet" type="text/css" />
    <script src="../FENGZHUANG/jquery-3.1.1.min.js"></script>
    <script src="../FENGZHUANG/bootstrap/js/bootstrap.min.js"></script>
    <style type="text/css">
        *{
            font-family:"微软雅黑";}
        #wai{400px;
            margin:0 auto;
            padding:0px;}
        #chuanshu{
            400px;
            margin:0 auto;
            padding:0px;}
        .waibtn{
            width:100%;;
            height:30px;}
        .wjm,.wjbtn{
            width:50%;
            height:100%;
            float:left;
            }
    </style>
    </head>
    
    <body>
    <div id="chuanshu">
        <form role="form" action="upload.php" method="post" enctype="multipart/form-data">
          <div class="form-group">
            <label for="inputfile">文件输入</label>
            <input type="file" name="file" id="inputfile">
          </div>
          <button type="submit" class="btn btn-default">上传</button>
        </form>
    </div>
    <br /><br /><br />
    <div id="wai">
    <?php
    session_start();
    //定义目录
    $fname = "./a";//需要显示的目录
    if(!empty($_SESSION["fname"]))
    {
        $fname = $_SESSION["fname"];
    }
    
    $pname = dirname($fname); //取上级目录
    
    if(realpath($fname)=="D:\wamp\www\lt\a")//注意路径的匹配
    {
    }//到达了需要显示的最上层目录就不显示上一层标签了
    else
    {
        echo "<button type='button' id='prev' class='btn waibtn btn-success' url='{$pname}'>返回上一层</button>";
    }
    //遍历目录下的所有文件显示
    $arr = glob($fname."/*");
    
    foreach($arr as $v)
    {
        $name = basename($v); //从完整路径中取文件名
        $name = iconv("gbk","utf-8",$name);
        if(is_dir($v))
        {
            echo "<button type='button' class='btn dir waibtn btn-primary' url='{$v}'>{$name}</button>";
        }
        else
        {
            echo "<button type='button' class='btn waibtn item btn-default' url='{$v}'><div class='wjm'>{$name}</div><div class='wjbtn'><a href='download.php? url={$v}'><input type='button' value='下载' url='{$v}' class='download btn btn-warning btn-xs' /></a>&nbsp;&nbsp;</div></button>";
        }
    }
    
    ?>
    </div>
    
    </body>
    
    <script type="text/javascript">
    $(".dir").click(function(){
            var url = $(this).attr("url");
            $.ajax({
                    url:"chuli2.php",
                    data:{url:url},
                    type:"POST",
                    dataType:"TEXT",
                    success: function(data){
                            window.location.href="wenjianceshi.php";
                        }
                });
        })
    $("#prev").click(function(){
        var url = $(this).attr("url");
        $.ajax({
                url:"chuli2.php",
                data:{url:url},
                type:"POST",
                dataType:"TEXT",
                success: function(data){
                        window.location.href="wenjianceshi.php";
                    }
            });
        })</script>
    
    </html>

    显示:

    上传处理页面upload.php

    <?php
    
    if($_FILES["file"]["error"])
    {
        echo $_FILES["file"]["error"];
    }
    else
    {
    
        if($_FILES["file"]["size"]<10240000)
        {
            //防止文件名重复
            $filename = "./a/".time().$_FILES["file"]["name"];
            //转码
            $filename = iconv("UTF-8","gb2312",$filename);
            
            if(file_exists($filename))
            {
                echo "该文件已存在";
            }
            else
            {
                //保存文件
                move_uploaded_file($_FILES["file"]["tmp_name"],$filename);
                header("location:wenjianchuanshu.php");
            }
        }
        else
        {
            echo "文件类型不对";
        }
    }

    点击选择文件之后选中了文件会显示:点击上传即可。

    下载处理页面download.php

    <?php
    $url = $_GET["url"];
    $bname = basename($url);
    header("Content-type:text/html;charset=utf-8"); 
    $file_name="{$bname}"; 
    //用以解决中文不能显示出来的问题 
    $file_name=iconv("utf-8","gb2312",$file_name); 
    $file_sub_path=$_SERVER['DOCUMENT_ROOT']; 
    $file_path="{$url}"; 
    //首先要判断给定的文件存在与否 
    if(!file_exists($file_path)){ 
    echo "没有该文件"; 
    return ; 
    } 
    $fp=fopen($file_path,"r"); 
    $file_size=filesize($file_path); 
    //下载文件需要用到的头 
    Header("Content-type: application/octet-stream"); 
    Header("Accept-Ranges: bytes"); 
    Header("Accept-Length:".$file_size); 
    Header("Content-Disposition: attachment; filename=".$file_name); 
    $buffer=10240000; 
    $file_count=0; 
    //向浏览器返回数据 
    while(!feof($fp) && $file_count<$file_size){ 
    $file_con=fread($fp,$buffer); 
    $file_count+=$buffer; 
    echo $file_con; 
    } 
    fclose($fp); 

    点击下载会弹出下载框,然后进行下载即可。

    点击文件夹或者上一层的处理页面chuli2.php

    <?php
    session_start();
    $url = $_POST["url"];
    $_SESSION["fname"] = $url;
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  • 原文地址:https://www.cnblogs.com/gaobint/p/6774336.html
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