SoFunction
Updated on 2025-03-10

PHP uses APC module to implement large file upload progress bars

The upload of php large files with progress has always been a problem that makes php programmers very troubled. Query baidu and Google. The general upload methods for providing progress are: flash+php, socket, apc+php, etc. I will introduce below.Upload with progress made by apc +php + ajax, and post the source code, hoping it will be useful to everyone.
Alternative PHP Cache (APC) is a free and publicly optimized code cache for PHP. It is used to provide a free, public and robust architecture to cache and optimize PHP's intermediate code.

When using apc, you must first use the installation of the apc module.
Step 1: Download php_apc.dll

Step 2: Let the apc extension module be supported.
Put php_apc.dll into your ext directory and open Join:
     extension=php_apc.dll
     apc.rfc1867 = on
     apc.max_file_size = 100M
     upload_max_filesize = 100M
     post_max_size = 100M
//The above parameters can be defined by yourself 

Step 3: Check whether PHP APC is supported

 if (function_exists('apc_fetch')) {
 echo 'it surpport apc model!';
 } else {
 echo "it's not support apc model!";
 }
 ?>

Let's get to the topic:
principle:Through the APC module, use ajas to read the upload progress from the cache. See:
  

<?php
 $unid=uniqid("");//Determine the unique Peugeot and realize the upload of multiple people simultaneously?>
<div class="userinput2">
 <div >First upload the software you want to upload to the server，Please wait patiently when uploading...<span class="style1"><br />
 </span>
 <script type="text/javascript" >
 var xmlHttp;
 var proNum=0;
 var loop=0;
 //Initialize xmlHttp function createxml(){
 var xmlHttp;
 if(){
 xmlHttp=new XMLHttpRequest();
 }else{
 xmlHttp=new ActiveXObject("");
 }
 return xmlHttp;
 }
 xmlHttp=createxml();
 //ajas operation function sendURL() {
 var url="?progress_key=<?php echo $unid;?>";
 ("GET",url,false);
 if (("Firefox")>=1){
 //If it is firefox3.0 ("progress_key=<?php echo $unid;?>");
 if(==200) doHttpReadyStateChange();
 
 }else{
  = doHttpReadyStateChange;
 ("progress_key=<?php echo $unid;?>");
 }
 }
 //Callback function function doHttpReadyStateChange() {
 if (== 4){
 proNum=parseInt();
 //alert(proNum);
 document.getElementByIdx_x("progressinner"). = proNum+"%";
 document.getElementByIdx_x("showNum").innerHTML = proNum+"%";
 if ( proNum < 100){
 setTimeout("sendURL()", 200);
 }else{
 //After uploading is successful, information cannot be obtained in time.  I hope experts can give me some advice document.getElementByIdx_x("progressouter").="none";
 document.getElementByIdx_x("progressinner").="none";
 document.getElementByIdx_x("showNum").="none";
 document.getElementByIdx_x("theframe").="none";
 document.getElementByIdx_x("link2").="block";
 }
 
 }
 }
 function startProgress(){
 document.getElementByIdx_x("progressouter").="block";
 setTimeout("sendURL()", 200);
 }
 function newsofturl(text){
 document.getElementByIdx_x("link2").="block";
 document.getElementByIdx_x("link2").value=text;
 }
 </script>
 <iframe  name="theframe" src="?id=<?php echo($unid); ?>" style="border: 0; height: 80px; width: 400px; " frameborder="0" scrolling="no" > </iframe>
 <input name="linkdefult" type="hidden"  value="0" />
 <br />
 <div  style="display:none;" > <font size=2>Upload successfully!    The file size is：
 <input type="text" name="filesize"  style="width:50px;"/>
 </font><br>
 <br>
 <font size=2>The file download address is：</font><br />
 <input type=text name='link' id='link' style='width:380px;' />
 </div>
 <br/>
 <div  style="width: 500px; height: 20px; border: 1px solid #000000; display:none;">
 <div  style="position: relative; height: 20px; background-color: #333333; width: 0%; "></div>
 </div>
 <div id='showNum' style="font-size:12px; color:#333333"></div>
 </div>
</div>
 



<?php
 $id = $_GET['id'];
?>
<script language="javascript">
//Trim the input text
function Trim(input)
{
 var lre = /^\s*/;
 var rre = /\s*$/;
 input = (lre, "");
 input = (rre, "");
 return input;
 }
function CheckForTestFile()
 {
 var file = document.getElementByIdx_x('Softfile');
 var fileName=; 
 //Checking for file browsed or not
 if (Trim(fileName) =='' )
 {
 alert("Please select a file for upload!!!");
 ();
 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 (("\") != -1)
 fileName = (("\") + 1);

 //Getting the file extension  
 var ext = ((".")).toLowerCase();
 for (var i = 0; i < ; i++)
 {
 if (extArray[i] == ext)
 {
 (); return true;
 }
 }
 alert("The correct file format is" + ((" ")) + "\nPlease select a new one" + "File submission upload.");
 ();
 return false; 
 } 
</script> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<form enctype="multipart/form-data"  action="" method="POST">
<input type="hidden" name="APC_UPLOAD_PROGRESS"  value="<?php echo $id?>"/>
<table width="322" border="0" cellpadding="0" cellspacing="0" >

 <tr>
 <td >1.Select software<br />

 <input name="Softfile" type="file"  /></td>
 <td ><br />
 <input name="submit" type="submit" onclick="return CheckForTestFile();" value="Upload software"/></td>
 </tr>
 </table>
</form>



<script language="javascript">
//Return the uploaded information to the parent windowfunction chuanzhi(){
.getElementByIdx_x('filesize').value=document.getElementByIdx_x('size').value;
.getElementByIdx_x('link').value=document.getElementByIdx_x('newsoftdir').value;
.getElementByIdx_x('linkdefult').value=1;
}
</script>
<body onLoad="chuanzhi();">
<?php
//header('Content-Type:text/html;charset=gb2312');
define('SOFTDIR', "./upload/"); //Path after uploaddefine('HTTPSOFTDIR', "/"); //The path of the server
//Discern whether the suffix name of the upload software is allowedfunction 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'] = 'Please select the uploaded software picture';
$errors['2'] = 'Uploading software pictures failed';
$errors['3'] = 'Uploading software pictures failed';
$daytime = date('Y-m-d-h-m-s');
$timename=str_replace("-","",$daytime); //Get the date and time of the day

 //Check whether the software is uploaded normally if(!is_uploaded_file($_FILES['Softfile']['tmp_name'])) {
 echo "<script>alert('Unormal upload!  ');();</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;
 //Check the software file format if(!isSoftExt($extension)) {
 echo "<script>alert('The uploaded software format is incorrect!  ');();</script>";
 exit;
 } 
 //Mobile software if(!move_uploaded_file($_FILES['Softfile']['tmp_name'], SOFTDIR. $filename)) {
 echo "<script>alert('The mobile software error!  ');();</script>";
 exit;
 }else{
 echo "<font size=2>Upload successfully!    The file size is：<input type=text id='size' value='$filesize'></font><br>";
 echo "<font size=2>The file download address is：</font><input type=text id='newsoftdir' value='".HTTPSOFTDIR.$filename."' style='width=380'>";
 }
}else
echo "Please don't enter the address directly!";

?>



<?php
//Upload ajas to get progress pagesession_start();
if(isset($_GET['progress_key'])) {
 $status = apc_fetch('upload_'.$_GET['progress_key']);
 echo ($status['current']/$status['total'])*100;
}
echo 'APC_FILE='.APC_FILE;
?>