Прежде всего: PHP запускается на сервере и, следовательно, может отправлять необходимый заголовок HTTP для установки cookie, Flash запускается в браузере клиента и, следовательно, не может делать то же самое.
Однако есть способ доступа и хранения файлов cookie из flash / flex с помощью flash.external.ExternalInterface и вызова функций JavaScript для получения и установки файлов cookie.
Я разработал класс для этого очень легко:
package de.slashslash.util {
import flash.external.ExternalInterface;
/**
* The Cookie class provides a simple way to create or access
* cookies in the embedding HTML document of the application.
*
*/
public class Cookie {
/**
* Flag if the class was properly initialized.
*/
private static var _initialized:Boolean = false;
/**
* Name of the cookie.
*/
private var _name:String;
/**
* Contents of the cookie.
*/
private var _value:String;
/**
* Flag indicating if a cookie was just created. It is <code>true</code>
* when the cookie did not exist before and <code>false</code> otherwise.
*/
private var _isNew:Boolean;
/**
* Name of the external javascript function used for getting
* cookie information.
*/
private static const GET_COOKIE:String = "cookieGetCookie";
/**
* Name of the external javascript function used for setting
* cookie information.
*/
private static const SET_COOKIE:String = "cookieSetCookie";
/**
* Javascript code to define the GET_COOKIE function.
*/
private static var FUNCTION_GET_COOKIE:String =
"function () { " +
"if (document." + GET_COOKIE + " == null) {" +
GET_COOKIE + " = function (name) { " +
"if (document.cookie) {" +
"cookies = document.cookie.split('; ');" +
"for (i = 0; i < cookies.length; i++) {" +
"param = cookies[i].split('=', 2);" +
"if (decodeURIComponent(param[0]) == name) {" +
"value = decodeURIComponent(param[1]);" +
"return value;" +
"}" +
"}" +
"}" +
"return null;" +
"};" +
"}" +
"}";
/**
* Javascript code to define the SET_COOKIE function.
*/
private static var FUNCTION_SET_COOKIE:String =
"function () { " +
"if (document." + SET_COOKIE + " == null) {" +
SET_COOKIE + " = function (name, value) { " +
"document.cookie = name + '=' + value;" +
"};" +
"}" +
"}";
/**
* Initializes the class by injecting javascript code into
* the embedding document. If the class was already initialized
* before, this method does nothing.
*/
private static function initialize():void {
if (Cookie._initialized) {
return;
}
if (!ExternalInterface.available) {
throw new Error("ExternalInterface is not available in this container. Internet Explorer ActiveX, Firefox, Mozilla 1.7.5 and greater, or other browsers that support NPRuntime are required.");
}
// Add functions to DOM if they aren't already there
ExternalInterface.call(FUNCTION_GET_COOKIE);
ExternalInterface.call(FUNCTION_SET_COOKIE);
Cookie._initialized = true;
}
/**
* Creates a new Cookie object. If a cookie with the specified
* name already exists, the existing value is used. Otherwise
* a new cookie is created as soon as a value is assigned to it.
*
* @param name The name of the cookie
*/
public function Cookie(name:String) {
Cookie.initialize();
this._name = name;
this._value = ExternalInterface.call(GET_COOKIE, name) as String;
this._isNew = this._value == null;
}
/**
* The name of the cookie.
*/
public function get name():String {
return this._name;
}
/**
* The value of the cookie. If it is a new cookie, it is not
* made persistent until a value is assigned to it.
*/
public function get value():String {
return this._value;
}
/**
* @private
*/
public function set value(value:String):void {
this._value = value;
ExternalInterface.call(SET_COOKIE, this._name, this._value);
}
/**
* The <code>isNew</code> property indicates if the cookie
* already exists or not.
*/
public function get isNew():Boolean {
return this._isNew;
}
}
}