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@ 2022-02-21T03:44:14Z

<?php

$oldContact = array(
        'name' => 'Joeahkd',
        'address' => '123 Masjdhfin',
        'city' => 'Spring',
        'a-key-only-in-old' => 'foo',
        'state' => 'CA',
        'zip' => '90101',
 );

$newContact = array(
        'name' => 'Joe',
        'a-key-only-in-new' => 'bar',
        'address' => '123 Main St',
        'city' => 'Springville',
        'state' => 'CA',
        'zip' => '90101',
);

$oldDiff = [];
$newDiff = [];
foreach ($oldContact + $newContact as $key => $value) {
    if (isset($oldContact[$key]) && !isset($newContact[$key])) {
        $oldDiff[$key] = $oldContact[$key];
    } elseif (isset($newContact[$key]) && !isset($oldContact[$key])) {
        $newDiff[$key] = $newContact[$key];
    } elseif ($oldContact[$key] !== $newContact[$key]) {
        $oldDiff[$key] = $oldContact[$key];
        $newDiff[$key] = $newContact[$key];
    }
}

echo "Old Diff: " . var_export($oldDiff, true) . "\n";
echo "New Diff: " . var_export($newDiff, true);

Output for git.master, git.master_jit, rfc.property-hooks: Old Diff: array ( 'name' => 'Joeahkd', 'address' => '123 Masjdhfin', 'city' => 'Spring', 'a-key-only-in-old' => 'foo', ) New Diff: array ( 'name' => 'Joe', 'address' => '123 Main St', 'city' => 'Springville', 'a-key-only-in-new' => 'bar', )

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2022-12-01 RFC: Property hooks - included in PHP 8.4
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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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