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@ 2022-07-09T13:33:57Z

<?php

$unresponsives = [
    [
        "Customer",
        "172.52.46.75",
        "2022-04-01 16:20:45",
        "1817",
        "nxlog",
        "2328.02 Hours"
    ],
    [
        "Customer",
        "172.25.89.45",
        "2022-04-01 16:20:45",
        "1817",
        "nxlog",
        "Undefined"
    ],
    [
        "Customer",
        "172.19.10.94",
        "2022-04-01 16:20:45",
        "1817",
        "nxlog",
        "324.02 Hours"
    ],
    [
        "Customer",
        "172.19.10.94",
        "2022-04-01 16:20:45",
        "1817",
        "nxlog",
        "2322.02 Hours"
    ],
    [
        "Customer",
        "172.19.10.94",
        "2022-04-01 16:20:45",
        "1817",
        "nxlog",
        "Undefined"
    ],
];

usort(
    $unresponsives,
    fn($a, $b) => 
        [$b[5] === 'Undefined', (float) $b[5]]
        <=>
        [$a[5] === 'Undefined', (float) $a[5]]
);
var_export($unresponsives);

Output for git.master, git.master_jit, rfc.property-hooks: array ( 0 => array ( 0 => 'Customer', 1 => '172.25.89.45', 2 => '2022-04-01 16:20:45', 3 => '1817', 4 => 'nxlog', 5 => 'Undefined', ), 1 => array ( 0 => 'Customer', 1 => '172.19.10.94', 2 => '2022-04-01 16:20:45', 3 => '1817', 4 => 'nxlog', 5 => 'Undefined', ), 2 => array ( 0 => 'Customer', 1 => '172.52.46.75', 2 => '2022-04-01 16:20:45', 3 => '1817', 4 => 'nxlog', 5 => '2328.02 Hours', ), 3 => array ( 0 => 'Customer', 1 => '172.19.10.94', 2 => '2022-04-01 16:20:45', 3 => '1817', 4 => 'nxlog', 5 => '2322.02 Hours', ), 4 => array ( 0 => 'Customer', 1 => '172.19.10.94', 2 => '2022-04-01 16:20:45', 3 => '1817', 4 => 'nxlog', 5 => '324.02 Hours', ), )

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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