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

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index.php文件

 代码如下 复制代码

<!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 复制代码

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

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