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@ 2016-01-05T11:37:16Z

<?php

$data = [
    [
        'ID' => 16,
        'begin_date' => new \DateTime('2016-01-01 UTC'),
        'end_date' => new \DateTime('2016-11-30 UTC'),
    ],
    [
        'ID' => 33,
        'begin_date' => new \DateTime('2015-01-04 UTC'),
        'end_date' => new \DateTime('2016-02-29 UTC'),
    ],
];


usort($data, function($a, $b) {
    // Note PHP 7 <=> doesn't work on \DateTime
    if($a['end_date'] == $b['end_date']) {
        return 0;
    }
    return $a['end_date'] > $b['end_date'] ? 1 : -1;
});

var_dump($now);
var_dump($data);
// for programs that run over multiple seconds this makes sure we don't drift during sorting
$now = new \DateTime('now');

// pick the first element that meets the criteria
foreach($data as $index => $element) {
    if($element['begin_date'] < $now) {
        // first condition is invalidated
        echo "begin_date invalidated ID #".$element['ID'].PHP_EOL;
        continue;
    }
    else {
        var_dump($element);
    }
}

Output for git.master, git.master_jit, rfc.property-hooks: Warning: Undefined variable $now in /in/pFghr on line 25 NULL array(2) { [0]=> array(3) { ["ID"]=> int(33) ["begin_date"]=> object(DateTime)#3 (3) { ["date"]=> string(26) "2015-01-04 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } ["end_date"]=> object(DateTime)#4 (3) { ["date"]=> string(26) "2016-02-29 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } } [1]=> array(3) { ["ID"]=> int(16) ["begin_date"]=> object(DateTime)#1 (3) { ["date"]=> string(26) "2016-01-01 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } ["end_date"]=> object(DateTime)#2 (3) { ["date"]=> string(26) "2016-11-30 00:00:00.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } } } begin_date invalidated ID #33 begin_date invalidated ID #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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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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