How to Implement the PHP File Upload progress bar

When writing file upload code, we also need to consider an important implementation function, that is, the progress bar required for file upload. Now I knowHere are two implementation examples for reference. More flexible applications can be modified as needed.

Implementation of the PHP File Upload progress bar of APC:

Install APC by referring to the official documentation. You can use the PECL module to install APC quickly and easily.

Configure php. ini and set the parameter apc. rfc1867 = 1 to enable APC to support the upload progress bar function, which is described in the APC source code instructions.

Sample Code:

 
 

  
  
If ($ _ SERVER ['request _ method'] = 'post') {// upload REQUEST
  
  
$Status=Apc_fetch('Upload _ '. $ _ POST ['apc _ UPLOAD_PROGRESS']);
  
  
$ Status ['done'] = 1;
  
  
Echo json_encode ($ status); // ajax call output to the user's page. Please find the relevant documentation
  
  
Exit;
  
  
} Elseif (isset ($ _ GET ['ss SS _ key']) {// read the upload progress
  
  
$Status=Apc_fetch('Upload _ '. $ _ GET ['Progress _ key']);
  
  
Echo json_encode ($ status );
  
  
Exit;
  
  
} Else {
  
  
// Other code, such as uploading a form
  
  
}
 
 

Implementation of the uploadprogress module:

How to Use the PECL module Installation Method to install the PHP File Upload progress bar of this module

Set uploadprogress. file. filename_template = "/tmp/upd_%s.txt" in php. ini"

Sample Code:

 
 

  
  
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 _ identifier'];
  
  
$Tmpfile= $ Upload_dir. $ sessid;
  
  
$Sessfile= $ Upload_dir. $ sessid. $ ext;
  
  
If (move_uploaded_file ($ _ FILES ['upfile'] ['tmp _ name'], $ tmpfile )){
  
  
// Upload successful
  
  
} Else {
  
  
// Upload Failed
  
  
} Else {
  
  
// Upload Error
  
  

  
  
} 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 {
  
  
// Read progress failed. Additional processing logic
  
  
}
  
  

  
  
} Else {
  
  
// Display the upload form
  
  
}
 
 

The above are the two methods for uploading progress bars of PHP files.