Php file Upload progress bar code

PHP file Upload progress bar two implementation methods of code currently I know there are two methods, one is to use PHP founder Rasmus Lerdorf write APC extension module to achieve (http://pecl.php.net/package/apc ), another way is to use the PECL extension module uploadprogress implementation (http://pecl.php.net/package/uploadprogress) I here are two examples of implementation respectively for reference, more flexible application according to their own needs to modify.

APC implementation method:

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:

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); // 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 ['SS SS _ key']);
Echo json_encode ($ status );
Exit;
} Else {
// Other code, such as uploading a form
}

Implementation of the uploadprogress module:

Use the PECL module installation method to install this module
Set uploadprogress. file. filename_template = "/tmp/upd_%s.txt" in php. ini"
Sample 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 _ 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
}