PHP swfupload图片文件上传实例代码-php手册-php.cn

PHP swfupload图片文件上传实例代码

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Release： 2016-06-13 11:27:45

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swfupload是一个flash插件它可以结合php来快速实现图片文件无刷新上传，同时还可以批量上传图片，下面我来给大家介绍PHP swfupload图片文件上传实例代码有需要了解的中参考。

效果图

index.php文件

代码如下

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SWFUpload Demos - SWFObject Demo

SWFObject Demo

This page demonstrates the SWFObject plugin. Do each of the following (one at a time) to see the plugin work:

Uninstall your Flash Player or install a version less than 9.0.28

Cause the SWF file to fail to load by deleting or renaming swfupload.swf (simulating a very slow or failed download)

Disable JavaScript

Each of these tests demontrate how these issues can be handled by SWFUpload and the SWFObject libraries.

Upload Queue

0 Files Uploaded

We're sorry. SWFUpload could not load. You must have JavaScript enabled to enjoy SWFUpload.

核心处理程序php代码

代码如下

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if (isset($_FILES["Filedata"]) || !is_uploaded_file($_FILES["Filedata"]["tmp_name"]) || $_FILES["Filedata"]["error"] != 0) {
    $upload_file = $_FILES['Filedata'];
    $file_info   = pathinfo($upload_file['name']);
    $file_type   = $file_info['extension'];
    $save        = 'image/' . md5(uniqid($_FILES["Filedata"]['name'])) . '.' . $file_info['extension'];
    $name        = $_FILES['Filedata']['tmp_name'];

    if (!move_uploaded_file($name, $save)) {
        exit;
    }

    //将数组的输出存起来以供查看
    $fileName = 'test.txt';
    $postData = var_export($file_info, true);
    $file     = fopen('' . $fileName, "w");
    fwrite($file,$postData);
    fclose($file);
}

swfUpload注意事项

swfuplaod在上传时，会新开一个进程，和原来的进程不一致，要解决这个问题，需要指定session_id，然后在登录页面判断，如果有post过来的session_id，那么就用函数session_id( $_POST['PHP_SESSIONID'])指定一下。

上传页的JS里面，可以获取当前的SESSION_ID的。

例如上传页的JS中：

代码如下	复制代码
post_params: {"PHPSESSID": ""},

在验证的判断页中：

代码如下	复制代码
if (isset($_POST["PHPSESSID"])) { session_id($_POST["PHPSESSID"]); }

（这一段是网上的注释：在带有Session验证的网站后台中SWFUpload无法正常工作，这是因为SWFUpload在上传时相当于重新开辟了一个新的Session 进程，因此无法与原有程序的Session保持一致，这就需要在上传时传递原有程序的SessionID，根据它来“找回”其应有的Session。）

完整实例下载地址:http://file.php100.com/download/2013/05/14/swfupload.zip