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@ 2021-10-14T05:43:07Z

<?php
class Tablier {
   public function __construct(public float $longueur, public float $largeur){
       
   } 
  
}
class Pont
{   
 private $taille = null;
 
 public function __sleep() {
     return array('name','tablier');
 } 
 
 public function __wakeup() {
   $this->taille = fn() => $this->tablier->longueur * $this->tablier->largeur;  
 }
   
 public function __construct(protected string $name, protected Tablier $tablier) {
  $this->taille = fn() => $this->tablier->longueur * $this->tablier->largeur;    
 }
 
 public function __clone(){
     $this->tablier = clone $this->tablier;
 }

}

$pont1 = new Pont("towerBridge", new Tablier(386,16));
var_dump($pont1);
$pont2 = clone $pont1;
$chaine = serialize($pont1);
echo $chaine;
$pont3 = unserialize($chaine);
var_dump($pont3);

Output for git.master, git.master_jit, rfc.property-hooks: object(Pont)#1 (3) { ["taille":"Pont":private]=> object(Closure)#3 (1) { ["this"]=> *RECURSION* } ["name":protected]=> string(11) "towerBridge" ["tablier":protected]=> object(Tablier)#2 (2) { ["longueur"]=> float(386) ["largeur"]=> float(16) } } O:4:"Pont":2:{s:7:"*name";s:11:"towerBridge";s:10:"*tablier";O:7:"Tablier":2:{s:8:"longueur";d:386;s:7:"largeur";d:16;}}object(Pont)#6 (3) { ["taille":"Pont":private]=> object(Closure)#8 (1) { ["this"]=> *RECURSION* } ["name":protected]=> string(11) "towerBridge" ["tablier":protected]=> object(Tablier)#7 (2) { ["longueur"]=> float(386) ["largeur"]=> float(16) } }

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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