Code for two implementation methods of PHP file upload progress bar

Code for two implementation methods of PHP file upload progress bar_PHP tutorial

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Release： 2016-07-21 15:53:57

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There are two methods that I know of at present. One is to use the APC extension module written by Rasmus Lerdorf, the founder of PHP (http://pecl.php.net/package/apc). The other method is to use the PECL extension. Module uploadprogress implementation (http://pecl.php.net/package/uploadprogress) I will give two examples of separate implementations for reference. For more flexible applications, you can modify them according to your own needs.

APC implementation method:

Install APC, refer to the official documentation for installation, you can use the PECL module installation method to quickly and easily, not explained here
Configure php.ini, set the parameters apc.rfc1867= 1. Enable APC to support the upload progress bar function. There are instructions in the APC source code documentation
Code example:

Copy the code The code is as follows:

if ($_SERVER['REQUEST_METHOD'] == 'POST') { //Upload request 
 $status = apc_fetch('upload_' . $_POST['APC_UPLOAD_PROGRESS']); 
 $status['done'] = 1; 
 echo json_encode($status); //Output to the ajax call in the client page, please find relevant documents yourself 
 exit; 
} elseif (isset( $_GET['progress_key'])) { //Read upload progress 
 $status = apc_fetch('upload_'.$_GET['progress_key']); 
 echo json_encode($status); 
 exit; 
} else { 
 //Other codes, such as upload forms, etc. 
} 

uploadprogress module implementation method:

Use the PECL module installation method to install Set uploadprogress.file.filename_template = “/tmp/upd_%s.txt” in
php.ini of this module
Code example:

Copy code The code is as follows:

if ($_SERVER['REQUEST_METHOD']=='POST') {
if (is_uploaded_file($_FILES['upfile']['tmp_name']) ) {
$upload_dir = 'your_path/';
$ext = strrchr($_FILES['video']['name'], '.');
$sessid = $_POST['UPLOAD_ID ENTIFIER '] ;
$tmpfile = $upload_dir . $sessid;
$sessfile = $upload_dir . $sessid .$ext;
if (move_uploaded_file($_FILES['upfile'] ['tmp_name'], $tmpfile)) {
>} elseif (!empty( $_GET['sessid'])) {
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
header("Cache-Control: no-store, no-cache, must-revalidate");
header("Cache-Control: post -check=0, pre-check=0", false);
header("Pragma: no-cache");
header("Content-Type:text/html;charset=UTF-8") ;

$unique_id = $_GET['sessid'];
$uploadvalues = uploadprogress_get_info($unique_id);

if (is_array($uploadvalues)) {
echo json_encode ($uploadvalues);
} else {
} //Reading progress failed, additional processing logic
}

} else {
} //Display the upload form
}