PHP swfupload图片文件上传实例代码

2024-09-04 11:44:30

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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.

index.php文件,代码如下:

<!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>

<title>SWFUpload Demos - SWFObject Demo</title>

<link href="../css/default.css" rel="stylesheet" type="text/css" />

<script type="text/javascript" src="../swfupload/swfupload.js"></script>

<script type="text/javascript" src="js/swfupload.swfobject.js"></script>

<script type="text/javascript" src="js/swfupload.queue.js"></script>

<script type="text/javascript" src="js/fileprogress.js"></script>

<script type="text/javascript" src="js/handlers.js"></script>

<script type="text/javascript">

var swfu;

SWFUpload.onload = function () {

var settings = {

  flash_url : "../swfupload/swfupload.swf",

  upload_url: "upload.php",

  post_params: {

   "PHPSESSID" : "NONE",

   "HELLO-WORLD" : "Here I Am",

   ".what" : "OKAY"

  },

  file_size_limit : "100 MB",

  file_types : "*.jpg;*.gif;*.png;*.jpeg;",

  file_types_description : "All Files",

  file_upload_limit : 100,

  file_queue_limit : 0,

  custom_settings : {

   progressTarget : "fsUploadProgress",

   cancelButtonId : "btnCancel"

  },

  debug: false,

  // Button Settings

  button_image_url : "XPButtonUploadText_61x22.png",

  button_placeholder_id : "spanButtonPlaceholder",

  button_width: 61,

  button_height: 22,

  // The event handler functions are defined in handlers.js

  swfupload_loaded_handler : swfUploadLoaded,

  file_queued_handler : fileQueued,

  file_queue_error_handler : fileQueueError,

  file_dialog_complete_handler : fileDialogComplete,

  upload_start_handler : uploadStart,

  upload_progress_handler : uploadProgress,

  upload_error_handler : uploadError,

  upload_success_handler : uploadSuccess,

  upload_complete_handler : uploadComplete,

  queue_complete_handler : queueComplete, // Queue plugin event



  // SWFObject settings

  minimum_flash_version : "9.0.28",

  swfupload_pre_load_handler : swfUploadPreLoad,

  swfupload_load_failed_handler : swfUploadLoadFailed

};

swfu = new SWFUpload(settings);

}

</script>

</head>

<body>

<div id="header">

<h1 id="logo"><a href="../">SWFUpload</a></h1>

<div id="version">v2.2.0</div>

</div>

<div id="content">

<h2>SWFObject Demo</h2>

<form id="form1" action="index.php" method="post" enctype="multipart/form-data">

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

   <ul>

    <li>Uninstall your Flash Player or install a version less than 9.0.28</li>

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

    <li>Disable JavaScript</li>

   </ul>

  <p>

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

  </p>

  <div id="divSWFUploadUI">

   <div class="fieldset  flash" id="fsUploadProgress">

   <span class="legend">Upload Queue</span>

   </div>

   <p id="divStatus">0 Files Uploaded</p>

   <p>

    <span id="spanButtonPlaceholder"></span>

    <input id="btnCancel" type="button" value="Cancel All Uploads" disabled="disabled" style="margin-left: 2px; height: 22px; font-size: 8pt;" />

    <br />

   </p>

  </div>

  <noscript>

   <div style="background-color: #FFFF66; border-top: solid 4px #FF9966; border-bottom: solid 4px #FF9966; margin: 10px 25px; padding: 10px 15px;">

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

   </div>

  </noscript>

  <div id="divLoadingContent" class="content" style="background-color: #FFFF66; border-top: solid 4px #FF9966; border-bottom: solid 4px #FF9966; margin: 10px 25px; padding: 10px 15px; display: none;">

   SWFUpload is loading. Please wait a moment...

  </div>

  <div id="divLongLoading" class="content" style="background-color: #FFFF66; border-top: solid 4px #FF9966; border-bottom: solid 4px #FF9966; margin: 10px 25px; padding: 10px 15px; display: none;">

   SWFUpload is taking a long time to load or the load has failed.  Please make sure that the Flash Plugin is enabled and that a working version of the Adobe Flash Player is installed.

  </div>

  <div id="divAlternateContent" class="content" style="background-color: #FFFF66; border-top: solid 4px #FF9966; border-bottom: solid 4px #FF9966; margin: 10px 25px; padding: 10px 15px; display: none;">



  </div>

</form>

</div>

</body>

</html>

核心处理程序php代码,代码如下:

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'];

    //开源代码Vevb.com

    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:

post_params: {"PHPSESSID": "<?php echo session_id(); ?>"},

在验证的判断页,代码如下:

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.

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