Getting this error in php 8 while the error is coming from page below.
PHP Fatal error: During inheritance of FacebookFacebookApp, while implementing Serializable: Uncaught Exception: Deprecated Functionality: FacebookFacebookApp implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary)
The file is
<?php
/**
* Copyright 2017 Facebook, Inc.
*
* You are hereby granted a non-exclusive, worldwide, royalty-free license to
* use, copy, modify, and distribute this software in source code or binary
* form for use in connection with the web services and APIs provided by
* Facebook.
*
* As with any software that integrates with the Facebook platform, your use
* of this software is subject to the Facebook Developer Principles and
* Policies [http://developers.facebook.com/policy/]. This copyright notice
* shall be included in all copies or substantial portions of the software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
*/
namespace Facebook;
use FacebookAuthenticationAccessToken;
use FacebookExceptionsFacebookSDKException;
class FacebookApp implements Serializable
{
/**
* @var string The app ID.
*/
protected $id;
/**
* @var string The app secret.
*/
protected $secret;
/**
* @param string $id
* @param string $secret
*
* @throws FacebookSDKException
*/
public function __construct($id, $secret)
{
if (!is_string($id)
// Keeping this for BC. Integers greater than PHP_INT_MAX will make is_int() return false
&& !is_int($id)) {
throw new FacebookSDKException('The "app_id" must be formatted as a string since many app ID's are greater than PHP_INT_MAX on some systems.');
}
// We cast as a string in case a valid int was set on a 64-bit system and this is unserialised on a 32-bit system
$this->id = (string) $id;
$this->secret = $secret;
}
/**
* Returns the app ID.
*
* @return string
*/
public function getId()
{
return $this->id;
}
/**
* Returns the app secret.
*
* @return string
*/
public function getSecret()
{
return $this->secret;
}
/**
* Returns an app access token.
*
* @return AccessToken
*/
public function getAccessToken()
{
return new AccessToken($this->id . '|' . $this->secret);
}
/**
* Serializes the FacebookApp entity as a string.
*
* @return string
*/
public function serialize()
{
return implode('|', [$this->id, $this->secret]);
}
/**
* Unserializes a string as a FacebookApp entity.
*
* @param string $serialized
*/
public function unserialize($serialized)
{
list($id, $secret) = explode('|', $serialized);
$this->__construct($id, $secret);
}
}
I understand that i need to replace serialize and unserialize with __ but i am not getting desired result
when i did __serialize and __unserialize , the error comes up with 2 abstract method used