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@ 2016-11-20T21:18:27Z

<?php

class A  {
public $x;
public $y;
public function __construct($x, $y) {
    $this->x = sha1($x);
    $this->y = $y;
}
public function __clone() {
    return new A($this->x, $this->y);
}
}

class B extends A {

public $z;
public function __construct($z, $parent_obj) {
    $this->z = $z;
    parent::__construct($parent_obj->x, $parent_obj->y);
}
public function doSomeThing() {
    $parent_a_array = (array) parent::__clone();
    var_dump($parent_a_array);
    $child_a_array = array_diff_assoc((array) $this, $parent_a_array);
    var_dump($child_a_array);
    echo "Parent Array Printing :\n";
    foreach ($parent_a_array as $key => $value) {
        echo "Key: $key; Value: $value\n";
    }
    echo "\nChild Array Printing: \n";
    foreach ($child_a_array as $key => $value) {
        echo "Key: $key; Value: $value\n";
    }


}
}

$t = new B('C', new A("A", "B"));
$t->doSomeThing();

Output for git.master, git.master_jit, rfc.property-hooks: array(2) { ["x"]=> string(40) "726c6aeb8252ad589562fe2c7409d50c90a058aa" ["y"]=> string(1) "B" } array(2) { ["x"]=> string(40) "bd605412133b28b10c5fa7a45fce29df67c18bd7" ["z"]=> string(1) "C" } Parent Array Printing : Key: x; Value: 726c6aeb8252ad589562fe2c7409d50c90a058aa Key: y; Value: B Child Array Printing: Key: x; Value: bd605412133b28b10c5fa7a45fce29df67c18bd7 Key: z; Value: C

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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