php 大文件带进度的上传,一直是一个令php程序员很苦恼的问题。查询baidu 、Google ,大体做带进度的上传方式为:flash+php,socket,apc+php等,下面我介绍了apc +php+ajax制作的带进度的上传,并贴出源码,希望对大家有用。
Alternative PHP Cache(APC)是 PHP 的一个免费公开的优化代码缓存。它用来提供免费,公开并且强健的架构来缓存和优化 PHP 的中间代码。
在使用apc时候,先必须使用安装apc 模块。
第一步:下载php_apc.dll
第二步:让php.ini支持apc扩展模块。
将php_apc.dll放入你的ext目录,然后打开php.ini 加入:
extension=php_apc.dll
apc.rfc1867 = on
apc.max_file_size = 100M
upload_max_filesize = 100M
post_max_size = 100M
//以上参数可自己定义
第三步:检查是否支持PHP APC
1
2
3
4
5
6
|
if (function_exists( 'apc_fetch' )) {
echo 'it surpport apc model!' ;
} else {
echo "it's not support apc model!" ;
}
?>
|
下面进入正题:
原理:通过APC 模块,用ajas从缓存中读取上传的进度。详见:
index.php
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
<?php
$unid =uniqid( "" ); //确定唯一标致,实现多人同时上传
?>
<div class = "userinput2" >
<div id= "captions" >先将你要上传的软件上传服务器,上传时请耐心等候...<span class = "style1" ><br />
</span>
<script type= "text/javascript" >
var xmlHttp;
var proNum=0;
var loop=0;
//初始化xmlHttp
function createxml(){
var xmlHttp;
if (window.XMLHttpRequest){
xmlHttp= new XMLHttpRequest();
} else {
xmlHttp= new ActiveXObject( "Microsoft.XMLHTTP" );
}
return xmlHttp;
}
xmlHttp=createxml();
//ajas操作
function sendURL() {
var url= "getprogress.php?progress_key=<?php echo $unid;?>" ;
xmlHttp.open( "GET" ,url,false);
if (window.navigator.userAgent.indexOf( "Firefox" )>=1){
//如果是firefox3.0
xmlHttp.send( "progress_key=<?php echo $unid;?>" );
if (xmlHttp.status==200) doHttpReadyStateChange();
} else {
xmlHttp.onreadystatechange = doHttpReadyStateChange;
xmlHttp.send( "progress_key=<?php echo $unid;?>" );
}
}
//回调函数
function doHttpReadyStateChange() {
if (xmlHttp.readyState== 4){
proNum=parseInt(xmlHttp.responseText);
//alert(proNum);
document.getElementByIdx_x( "progressinner" ).style.width = proNum+ "%" ;
document.getElementByIdx_x( "showNum" ).innerHTML = proNum+ "%" ;
if ( proNum < 100){
setTimeout( "sendURL()" , 200);
} else {
//上传成功后,还不能及时得到信息。还希望高人指点
document.getElementByIdx_x( "progressouter" ).style.display= "none" ;
document.getElementByIdx_x( "progressinner" ).style.display= "none" ;
document.getElementByIdx_x( "showNum" ).style.display= "none" ;
document.getElementByIdx_x( "theframe" ).style.display= "none" ;
document.getElementByIdx_x( "link2" ).style.display= "block" ;
}
}
}
function startProgress(){
document.getElementByIdx_x( "progressouter" ).style.display= "block" ;
setTimeout( "sendURL()" , 200);
}
function newsofturl(text){
document.getElementByIdx_x( "link2" ).style.display= "block" ;
document.getElementByIdx_x( "link2" ).value=text;
}
</script>
<iframe id= "theframe" name= "theframe" src= "softupload.php?id=<?php echo($unid); ?>" style= "border: 0; height: 80px; width: 400px; " frameborder= "0" scrolling= "no" > </iframe>
<input name= "linkdefult" type= "hidden" id= "linkdefult" value= "0" />
<br />
<div id= "link2" style= "display:none;" > <font size=2>上传成功! 文件大小为:
<input type= "text" name= "filesize" id= "filesize" style= "width:50px;" />
</font><br>
<br>
<font size=2>文件下载地址为:</font><br />
<input type=text name= 'link' id= 'link' style= 'width:380px;' />
</div>
<br/>
<div id= "progressouter" style= "width: 500px; height: 20px; border: 1px solid #000000; display:none;" >
<div id= "progressinner" style= "position: relative; height: 20px; background-color: #333333; width: 0%; " ></div>
</div>
<div id= 'showNum' style= "font-size:12px; color:#333333" ></div>
</div>
</div>
|
softupload.php
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
<?php
$id = $_GET [ 'id' ];
?>
<script language= "javascript" >
//Trim the input text
function Trim(input)
{
var lre = /^\s*/;
var rre = /\s*$/;
input = input.replace(lre, "" );
input = input.replace(rre, "" );
return input;
}
function CheckForTestFile()
{
var file = document.getElementByIdx_x( 'Softfile' );
var fileName=file.value;
//Checking for file browsed or not
if (Trim(fileName) == '' )
{
alert( "请为上传选择一个文件!!!" );
file.focus();
return false;
}
//Setting the extension array for diff. type of text files
var extArray = new Array( ".rar" , ".zip" , ".exe" , ".gz" );
//getting the file name
while (fileName.indexOf("\") != -1)
fileName = fileName.slice(fileName.indexOf("\") + 1);
//Getting the file extension
var ext = fileName.slice(fileName.indexOf( "." )).toLowerCase();
for ( var i = 0; i < extArray.length; i++)
{
if (extArray[i] == ext)
{
window.parent.startProgress(); return true;
}
}
alert( "正确的文件格式为" + (extArray.join( " " )) + "\n请选择一个新的 " + "文件提交上传." );
file.focus();
return false;
}
</script> <meta http-equiv= "Content-Type" content= "text/html; charset=gb2312" />
<form enctype= "multipart/form-data" id= "upload_form" action= "target.php" method= "POST" >
<input type= "hidden" name= "APC_UPLOAD_PROGRESS" id= "progress_key" value= "<?php echo $id?>" />
<table width= "322" border= "0" cellpadding= "0" cellspacing= "0" id= "linkTable" >
<tr>
<td >1.选择软件<br />
<input name= "Softfile" type= "file" id= "Softfile" /></td>
<td ><br />
<input name= "submit" type= "submit" onclick= "return CheckForTestFile();" value= "上传软件" /></td>
</tr>
</table>
</form>
|
target.php
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
<script language= "javascript" >
//将上传后的信息返还给父窗口
function chuanzhi(){
parent.document.getElementByIdx_x( 'filesize' ).value=document.getElementByIdx_x( 'size' ).value;
parent.document.getElementByIdx_x( 'link' ).value=document.getElementByIdx_x( 'newsoftdir' ).value;
parent.document.getElementByIdx_x( 'linkdefult' ).value=1;
}
</script>
<body onLoad= "chuanzhi();" >
<?php
//header('Content-Type:text/html;charset=gb2312');
define( 'SOFTDIR' , "./upload/" ); //上传后路径
define( 'HTTPSOFTDIR' , "http://www.mysite.com/" ); //服务器的路径
//判断上传软件后缀名是否允许
function isSoftExt( $extension ) {
$ext = array ( 'exe' , 'rar' , 'zip' , 'gz' );
return in_array( $extension , $ext ) ? true : false;
}
if ( $_SERVER [ 'REQUEST_METHOD' ]== 'POST' ){
$errors [ '0' ] = true;
$errors [ '1' ] = '请选择上传的软件图片' ;
$errors [ '2' ] = '上传软件图片失败' ;
$errors [ '3' ] = '上传软件图片失败' ;
$daytime = date ( 'Y-m-d-h-m-s' );
$timename = str_replace ( "-" , "" , $daytime ); //取得当天的日期时间
//检查软件是否是正常上传的
if (! is_uploaded_file ( $_FILES [ 'Softfile' ][ 'tmp_name' ])) {
echo "<script>alert('非正常上传!');history.back();</script>" ;
exit ;
}
$extension = pathinfo ( $_FILES [ 'Softfile' ][ 'name' ], PATHINFO_EXTENSION);
$filename = $timename . "_" . $_FILES [ 'Softfile' ][ 'name' ];
$tmpsize = $_FILES [ 'Softfile' ][ 'size' ];
$msize = round ( $tmpsize /1048576 , 2) . "M" ;
$ksize = round ( $tmpsize /1024 ,2). "K" ;
$filesize = $tmpsize >1048576? $msize : $ksize ;
//检查软件文件格式
if (!isSoftExt( $extension )) {
echo "<script>alert('上传的软件格式有错误!');history.back();</script>" ;
exit ;
}
//移动软件
if (!move_uploaded_file( $_FILES [ 'Softfile' ][ 'tmp_name' ], SOFTDIR. $filename )) {
echo "<script>alert('移动软件出错!');history.back();</script>" ;
exit ;
} else {
echo "<font size=2>上传成功! 文件大小为:<input type=text id='size' value='$filesize'></font><br>" ;
echo "<font size=2>文件下载地址为:</font><input type=text id='newsoftdir' value='" .HTTPSOFTDIR. $filename . "' style='width=380'>" ;
}
} else
echo "请不要直接输入地址!" ;
?>
|
getprogress.php
1
2
3
4
5
6
7
8
9
|
<?php
//上传ajas获取进度页面
session_start();
if (isset( $_GET [ 'progress_key' ])) {
$status = apc_fetch( 'upload_' . $_GET [ 'progress_key' ]);
echo ( $status [ 'current' ]/ $status [ 'total' ])*100;
}
echo 'APC_FILE=' .APC_FILE;
?>
|
本文为大家提供了一个php制作带进度上传文件的思路,可能还有一些欠缺的地方,希望大家进行补充,或者是再结合小编之前整理的文章进行学习,希望对大家的学习有所帮助。