php+js實現非同步圖片上傳執行個體分享_php執行個體

來源:互聯網
上載者:User

upload.php

複製代碼 代碼如下:

<?php
if(isset($_FILES["myfile"]))
{
$ret = array();
$uploadDir = 'images'.DIRECTORY_SEPARATOR.date("Ymd").DIRECTORY_SEPARATOR;
$dir = dirname(__FILE__).DIRECTORY_SEPARATOR.$uploadDir;
file_exists($dir) || (mkdir($dir,0777,true) && chmod($dir,0777));
if(!is_array($_FILES["myfile"]["name"])) //single file
{
$fileName = time().uniqid().'.'.pathinfo($_FILES["myfile"]["name"])['extension'];
move_uploaded_file($_FILES["myfile"]["tmp_name"],$dir.$fileName);
$ret['file'] = DIRECTORY_SEPARATOR.$uploadDir.$fileName;
}
echo json_encode($ret);
}

?>

index.html

複製代碼 代碼如下:

<!DOCTYPE html>
<html>
<head>
    <title>Html5 Ajax 上傳檔案</title>
    <meta charset="utf-8">

<script type="text/javascript">


    var xhr;
    function createXMLHttpRequest()
    {
        if(window.ActiveXObject)
        {
            xhr = new ActiveXObject("Microsoft.XMLHTTP");
        }
        else if(window.XMLHttpRequest)
        {
            xhr = new XMLHttpRequest();
        }
    }


    function UpladFile()
    {
        var fileObj = document.getElementById("file").files[0];
        var FileController = 'upload.php';
        var form = new FormData();
        form.append("myfile", fileObj);
        createXMLHttpRequest();
        xhr.onreadystatechange = handleStateChange;
        xhr.open("post", FileController, true);
        xhr.send(form);
    }


    function handleStateChange()
    {
        if(xhr.readyState == 4)
        {
            if (xhr.status == 200 || xhr.status == 0)
            {
                var result = xhr.responseText;
                var json = eval("(" + result + ")");
                alert('圖片連結:\n'+json.file);
            }
        }
    }


</script>


<style>
    .txt{ height:28px; border:1px solid #cdcdcd; width:670px;}
    .mybtn{ background-color:#FFF; line-height:14px;vertical-align:middle;border:1px solid #CDCDCD;height:30px; width:70px;}
    .file{ position:absolute; top:0; right:80px; height:24px; filter:alpha(opacity:0);opacity: 0;width:260px }
</style>
</head>


<body>

<div class="form-group">
    <label class="control-label">圖片</label>
    <br/>
    <input type='text' name='textfield' id='textfield' class='txt' />
    <span onclick="file.click()"  class="mybtn">瀏覽...</span>
    <input type="file" name="file" class="file" id="file" size="28" onchange="document.getElementById('textfield').value=this.value" />
    <span onclick="UpladFile()" class="mybtn">上傳</span>
</div>

</body>


</html>

聯繫我們

該頁面正文內容均來源於網絡整理,並不代表阿里雲官方的觀點,該頁面所提到的產品和服務也與阿里云無關,如果該頁面內容對您造成了困擾,歡迎寫郵件給我們,收到郵件我們將在5個工作日內處理。

如果您發現本社區中有涉嫌抄襲的內容,歡迎發送郵件至: info-contact@alibabacloud.com 進行舉報並提供相關證據,工作人員會在 5 個工作天內聯絡您,一經查實,本站將立刻刪除涉嫌侵權內容。

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.