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@ 2016-01-26T01:06:45Z

<?php

$aO = new ArrayObject();

$aO['3'] = (object) ['sortKey'=>8, 'label'=>'three'];
$aO['1'] = (object) ['sortKey'=>6, 'label'=>'one'];
$aO['5'] = (object) ['sortKey'=>4, 'label'=>'five'];

$output = applyOrder($aO, ['sortKey'=>'ASC']);
var_dump($output);

    function applyOrder(array $resources, array $orderBy)
    {
        $results = $resources;
        foreach ($orderBy as $property => $order) {
            $sortable = [];
            foreach ($results as $key => $object) {
                $sortable[$key] = $object->$property;
                if (null === $sortable[$key]) {
                    unset($sortable[$key]);
                }
            }
            if ('ASC' === $order) {
                asort($sortable);
            } elseif ('DESC' === $order) {
                arsort($sortable);
            }
            $results = [];
            foreach ($sortable as $key => $propertyValue) {
                $results[$key] = $resources[$key];
            }
        }
        return $results;
    }

Output for git.master, git.master_jit, rfc.property-hooks: Fatal error: Uncaught TypeError: applyOrder(): Argument #1 ($resources) must be of type array, ArrayObject given, called in /in/0nrQE on line 9 and defined in /in/0nrQE:12 Stack trace: #0 /in/0nrQE(9): applyOrder(Object(ArrayObject), Array) #1 {main} thrown in /in/0nrQE on line 12
Process exited with code 255.

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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