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
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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
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<?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
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<?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
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<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
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<?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。