PHP uses apc to implement the upload progress bar

Last Update:2013-11-17 Source: Internet

Author: User

Tags apc

Developer on Alibaba Coud: Build your first app with APIs, SDKs, and tutorials on the Alibaba Cloud. Read more ＞

Php itself does not have the real-time upload progress bar function. If you want this function, we generally use ajax. However, php provides an apc, you can configure the upload progress bar with php.

It mainly targets applications on Windows.
1. The server must support apc extension. If this extension is not available, Baidu php_apc.dll should be used to download an extension that requires php.5.2 or later.
2. Configure apc and restart apache.

The Code is as follows:	Copy code
Extension = php_apc.dll Apc. rfc1867 = on Apc. max_file_size = 1000 M Upload_max_filesize = 1000 M Post_max_size = 1000 M

Note: The size of parameters depends on the project's apc. max_file_size: Specifies the size of the files that can be uploaded by apc. apc is required. max_file_size <= upload_max_filesize and apc. max_file_size <= post_max_size. restart apache to support apc.
3. Use phpinfo () in the code to check whether the apc extension is installed.
4. The following is the implementation code:
Getprogress. php

The Code is as follows:

Copy code

<? Php
Session_start ();
If (isset ($ _ GET ['Progress _ key']) {
$ Status = apc_fetch ('upload _ '. $ _ GET ['ss SS _ key']);
Echo ($ status ['current']/$ status ['Total']) * 100;
}
?>
Upload. php

PHP Code
<? Php
$ Id = $ _ GET ['id'];
?>
<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?> "/>
<Input type = "file" id = "test_file" name = "test_file"/> <br/>
<Input onclick = "window. parent. startProgress (); return true ;"
Type = "submit" value = "Upload"/>
</Form>

Target. php

The Code is as follows:	Copy code
<? Php Set_time_limit (600 ); If ($ _ SERVER ['request _ method'] = 'post '){ Move_uploaded_file ($ _ FILES ["test_file"] ["tmp_name"], Dirname ($ _ SERVER ['script _ filename']). "/UploadTemp /". $ _ FILES ["test_file"] ["name"]); // The UploadTemp folder is located in the same directory as the script. Echo "<p> upload successful </p> "; } ?>

Index. php

The Code is as follows:

Copy code

<? Php
$ Id = md5 (uniqid (rand (), true ));
?>
<Html>
<Head> <title> upload progress </title> <Body>
<Script src = "js/jquery-1.4.4.min.js" language = "javascript"> </script>

<Script language = "javascript">
Var proNum = 0;
Var loop = 0;
Var progressResult;
Function sendURL (){
$. Ajax ({
Type: 'get ',
Url: "getprogress. php? Progress_key = <? Php echo $ id;?> ",
Async: true,
Cache: false,
DataType: 'json ',
Data: "progress_key = <? Php echo $ id;?> ",
Success: function (e ){
ProgressResult = e;
ProNum = parseInt (progressResult );
Document. getElementById ("progressinner"). style. width = proNum + "% ";
Document. getElementById ("showNum"). innerHTML = proNum + "% ";
If (proNum <100 ){
SetTimeout ("getProgress ()", 100 );
}

}
});

}

Function getProgress (){
Loop ++;

SendURL ();
}
Var interval;
Function startProgress (){
Document. getElementById ("progressouter"). style. display = "block ";
SetTimeout ("getProgress ()", 100 );
}
</Script>
<Iframe id = "theframe" name = "theframe"
Src = "upload. php? Id = <? Php echo $ id;?> "
Style = "border: none; height: 100px; width: 400px;">
</Iframe>
<Br/>
<Div id = "progressouter" style = "width: 500px; height: 20px; border: 6px solid red; display: none;">
<Div id = "progressinner" style = "position: relative; height: 20px; background-color: purple; width: 0%;"> </div>
</Div>
<Div id = 'shownum'> </div> <br>
<Div id = 'shownum2'> </div>
</Body>
</Html>

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

Get Started for Free

Sales Support

1 on 1 presale consultation

Chat Contact Sales
After-Sales Support

24/7 Technical Support 6 Free Tickets per Quarter Faster Response

Open a Ticket
Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.

Learn More