首頁  >  文章  >  後端開發  >  php+js实现异步图片上传实例分享_PHP教程

php+js实现异步图片上传实例分享_PHP教程

WBOY
WBOY原創
2016-07-13 10:29:07837瀏覽

upload.php

复制代码 代码如下:

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

复制代码 代码如下:




    Html5 Ajax 上传文件
   


    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('图片链接:\n'+json.file);
            }
        }
    }






   
   

   
    浏览...
   
    上传



www.bkjia.comtruehttp://www.bkjia.com/PHPjc/779158.htmlTechArticleupload.php 复制代码 代码如下: ?php if(isset($_FILES["myfile"])) { $ret = array(); $uploadDir = 'images'.DIRECTORY_SEPARATOR.date("Ymd").DIRECTORY_SEPARATOR; $dir = dirname(...
陳述:
本文內容由網友自願投稿,版權歸原作者所有。本站不承擔相應的法律責任。如發現涉嫌抄襲或侵權的內容,請聯絡admin@php.cn