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@ 2022-01-21T22:30:27Z

<?php

var_export([
    // haystack, then needle
    '0:1' => strpbrk('0', '1'), // false
    '1:0' => strpbrk('1', '0'), // false
    '0:0' => strpbrk('0', '0'), // '0'
    '1:1' => strpbrk('1', '1'), // '1'
    'a:b' => strpbrk('a', 'b'), // false
    'b:a' => strpbrk('b', 'a'), // false
    'a:a' => strpbrk('a', 'a'), // 'a'
    'b:b' => strpbrk('b', 'b'), // 'b'
    'a as bool' => (bool)'a',
    'a as int' => (int)'a',
    'a as bool then int' => (int)(bool)'a',
]);

echo "\n---\n";

$params = [
    ['one' => '0', 'two' => '1', 'three' => '0', 'four' => '1', 'five' => 'a', 'six' => 'b', 'seven' => 'a', 'eight' => 'b'],  // haystacks
    ['three' => '0', 'one' => '1', 'four' => '1', 'two' => '0', 'five' => 'a', 'eight' => 'b', 'six' => 'b', 'seven' => 'a'], // needles
    'strpbrk'
];

var_export([
    'udiff' => array_udiff_assoc(...$params),
    'uintersect' => array_uintersect_assoc(...$params),
]);

Output for git.master, git.master_jit, rfc.property-hooks: array ( '0:1' => false, '1:0' => false, '0:0' => '0', '1:1' => '1', 'a:b' => false, 'b:a' => false, 'a:a' => 'a', 'b:b' => 'b', 'a as bool' => true, 'a as int' => 0, 'a as bool then int' => 1, ) --- array ( 'udiff' => array ( 'four' => '1', ), 'uintersect' => array ( 'one' => '0', 'two' => '1', 'three' => '0', 'five' => 'a', 'six' => 'b', 'seven' => 'a', 'eight' => 'b', ), )

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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