Flash php implements image upload

To implement flash php image upload, both have their own division of labor:

flash is responsible for opening the browser and browsing my computer;

The flash methods we need here are:
1. FileReference or FileReferenceList class, which is responsible for browsing my computer. The difference between the two is that the former can select one file at a time
And the latter can select multiple files at a time File;

包	flash.net
类	public class FileReference
继承	FileReference -> EventDispatcher -> Object

语言版本 :

ActionScript 3.0

Player 版本 :

Flash Player 9

Language version:

ActionScript 3.0

Player version:

Flash Player 9

The

FileReference

包	flash.net
类	public final class FileFilter
继承	FileFilter-> Object

class provides methods for uploading and downloading files between the user's computer and the server. An operating system dialog box prompts the user to select a file to upload or a location to download from. Each FileReference

object references a file on the user's disk and has properties that contain information about the file's size, type, name, creation date, modification date, and creator type (Macintosh only) .

语言版本 :

ActionScript 3.0

Player 版本 :

Flash Player 9

2. After opening, we can use FileFilter to limit the format of the selected file;

Package	flash.net
Class	public final class FileFilter
Inherits	FileFilter-> Object

Language version:

ActionScript 3.0

Player version:

Flash Player 9

The

FileFilter class is used to indicate that when calling <span class="searchhilite"><code>FileReference.browse() or <span class="searchhilite"><code>FileReferenceList.browse() Which files are shown in the file browsing dialog box that appears. The FileFilter instance will be passed to the browse()<code>browse() function. If a FileFilter instance is used, extensions and file types not specified in the FileFilter instance will be filtered out, i.e. the user cannot select these types when uploading. If no FileFilter object is passed to browse()<code>browse(), all files will be displayed in the dialog box.
3. These are enough

php is responsible for the background upload. There is only one function in this part, move_uploaded_file

move_uploaded_file

(PHP 4 >= 4.0.3, PHP 5)

move_uploaded_file -- Move the uploaded file to a new location

Description

bool move_uploaded_file ( string filename, string destination )

This function checks to ensure that the file specified by filename is a legitimate upload file (i.e. uploaded via PHP's HTTP POST upload mechanism). If the file is legal, it is moved to the file specified by destination.
If filename is not a valid uploaded file, no operation will occur and move_uploaded_file() will return FALSE.
If filename is a legitimate uploaded file but cannot be moved for some reason, no action will occur and move_uploaded_file() will return FALSE. A warning is also issued.
This check is particularly important if the uploaded file may cause its content to be displayed to the user or other users of this system.

Code part:

package  
{
    import flash.display.Sprite;
    
    import flash.events.Event;
    import flash.events.MouseEvent;
    import fl.controls.Button;
    
    import flash.net.FileReference;
    import flash.net.FileFilter;
    
    public class Main extends Sprite
    {
        public var file:FileReference;
        public var btn:Button;
        public var arr:Array;
        public var imgfilter:FileFilter;
        public var swffilter:FileFilter;
        public var ureq:URLRequest;
        
        public function Main() 
        {
            file = new FileReference();
            btn = new Button();
            imgfilter = new FileFilter("Image", "*.png;*.jpg");
            
            btn.label = "browser";
            btn.emphasized = true;
            btn.width = 150;
            btn.move(100, 100);
            ureq.url = "http://localhost/test/img/upload.php";

            
            btn.addEventListener(MouseEvent.MOUSE_DOWN, down);
            file.addEventListener(Event.COMPLETE, complete);
            file.addEventListener(Event.OPEN,open);
            file.addEventListener(Event.CANCEL, cancel);//点击取消按钮会广播这个事件
            file.addEventListener(Event.SELECT, select);
                        
            addChild(btn);
        }
 
 
 public function down(e:MouseEvent):void {
 file.browse ([imgfilter]);//browse parameter is a FileFilter object, limiting the type of file selection
              
 public function complete(e:Event):void {
 trace(" complete" e);
}
function open(e:Event):void {       trace("
open" ); }public

function cancel(e:Event):void { trace("
cancel"); > function select(e:Event):void {
var tem
= e.target; trace( tem.name
",
" tem.creationDate "," tem.size); file.upload(ureq);//After selecting, start uploading }
}  } php code:

php
$uploaddir = ' ./uploads/';//Set storage path
$filename = $_FILES['Filedata']['name']; //Get the selected file
$uploadfile = $uploaddir . $filename;//Storage file path
$uploadfile = iconv('utf-8', 'gb2312', $uploadfile);//Set file format
move_uploaded_file($_FILES ['Filedata']['tmp_name '], $uploadfile);//Start uploading
?>