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PHP uses apc to implement upload progress bar method_PHP tutorial

WBOYOriginal: 2016-07-20 11:11:53903browse

PHP itself does not have the function of having a real-time upload progress bar. If we want to have this function, we usually use ajax to implement it, but PHP provides an apc, which can be configured with PHP to implement the upload progress bar.

Mainly targeted at applications on windows.
1. The server must support the apc extension. If there is no such extension, search php_apc.dll on Baidu and download an extension. The extension requires php.5.2 or above.
2. Configure apc related configuration and restart apache

The code is as follows

Copy code

extension=php_apc.dll

代码如下	复制代码
extension=php_apc.dll apc.rfc1867 = on apc.max_file_size = 1000M upload_max_filesize = 1000M post_max_size = 1000M

apc.rfc1867 = on

apc.max_file_size = 1000M

upload_max_filesize = 1000M = 1000M

Explanation: As for the size of the parameters, it depends on the project needs apc.max_file_size, set the upload file supported by apc Size, requires apc.max_file_size <=upload_max_filesize and apc.max_file_size <=post_max_size. Restart apache to achieve apc support.

3. Use phpinfo(); in the code to check whether the apc extension is installed.

代码如下

复制代码

session_start();
if(isset($_GET['progress_key'])) {
$status = apc_fetch('upload_'.$_GET['progress_key']);
echo ($status['current']/$status['total'])*100;
}
?>
upload.php

PHP Code
$id = $_GET['id'];
?>

4. The following is the implementation code:

getprogress.php

The code is as follows

Copy code

代码如下	复制代码
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"]);//UploadTemp文件夹位于此脚本相同目录下 echo " 上传成功 "; } ?>

session_start(); <🎜>if(isset($_GET['progress_key' ])) { <🎜> $status = apc_fetch('upload_'.$_GET['progress_key']); <🎜> echo ($status['current']/$status['total'])*100; < 🎜>} <🎜>?> upload.phpPHP Code $id = $_GET['id']; <🎜>?>

target.php

The code is as follows	Copy code
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 this script <🎜> echo " Upload successful "; } ?>

index.php

代码如下

复制代码

   $id = md5(uniqid(rand(), true));
?>

上传进度





        src="upload.php?id=<?php echo $id; ?>"    <br>        style="border: none; height: 100px; width: 400px;" >    <br>

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