php/apc 监控文件上传进度

<?php
//<BS>X_REQUESTED_WITH
/* 上传文件 */
if(isset($_FILES['upfile'])){
$uploaddir = $_SERVER['DOCUMENT_ROOT']."/uploadprogress/upfile/";
$uploaddir.= date("YmdHis",time()).'_'.$_FILES['upfile']['name'];
if(move_uploaded_file($_FILES["upfile"]["tmp_name"], $uploaddir))
{
echo "上传成功!";
exit;
}
}
/* 获取上传进度信息 */
if($_SERVER['HTTP_X_REQUESTED_WITH'] == 'XMLHttpRequest'){
if(isset($_GET['APC_UPLOAD_PROGRESS']) && $_GET['do'] == 'retrieving') {
$status = apc_fetch('upload_'.$_GET['APC_UPLOAD_PROGRESS']);
if($status['total']!=0 && !empty($status['total']))	{
$json = array(
'per'=> $status['current']/$status['total']*100,
'total'=> round($status['total']/1024),
'current'=> round($status['current']/1024),
);
echo json_encode($json);
exit;
}
else {
echo (0);
exit;
}
}
}

?>
<mce:script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.2.6/jquery.min.js" mce_src="http://ajax.googleapis.com/ajax/libs/jquery/1.2.6/jquery.min.js"><!--
</script >
<script type="text/javascript" src="jquery.form.js" mce_src="jquery.form.js"></script >
<script type="text/javascript">
$(document).ready(function() {
// This is more like it!
$('#upload_form').ajaxForm(function() {
//alert("Thank you for your comment!");
});
});
// --></mce:script>
<mce:script type="text/javascript" ><!--
function getProgress(upid){
var url = "index.php";
$.getJSON(
url,
{ APC_UPLOAD_PROGRESS: upid,do:'retrieving'},
function(json){
$("#progressinner").width(json.per+"%");
$("#progressinner").html(parseInt(json.per)+"%");
$("#upstatus").html('文件大小:'+json.total+'KB'+' 已上传:'+json.current+'KB');
if (json.per < 100){
setTimeout(function(){
getProgress(upid);
}, 10);
}else{
$("#upstatus").html("文件上传完成");
$("#progressouter").hide("slow");
}
}
)
}
function startProgress(){
var upid = $("#progress_key").val();
$("#progressinner").html("0%");
$("#progressinner").width("0%");
$("#progressouter").show();
setTimeout(function(){
getProgress(upid);
}, 100);
}
// --></mce:script>
<form enctype="multipart/form-data" id="upload_form" action="index.php" method="POST">
<input type="hidden" name="APC_UPLOAD_PROGRESS" id="progress_key" value="<?php echo uniqid(mt_srand())?>"/>
<input type="file" id="upfile" name="upfile"/><br/><br/>
<input type="submit" id="filesubmit" value="上传" onclick="startProgress();"/>
</form>
<div id="upstatus" style="width: 500px; height: 30px; border: 1px solid #ffffde; color:#796140;">
</div
<div id="progressouter" style="width:500px;height:20px;border:3px solid #de7e00;display:none;">
<div id="progressinner" style="position:relative;height:20px;color:#796140;background-color:#f6d095;width: 0%;">
</div>
</div>