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@ 2015-11-19T11:05:37Z

<?php

function test() {
    $orderedids=array(7, 9, 5, 3);
    
    $tags=array(
        new Tag(3),
        new Tag(7),
        new Tag(5),
        new Tag(9)
    );
    
    $flipped=array_flip($orderedids);
    
    class Sorter {
        public $flipped;
        function __construct($flipped) {
            $this->flipped=$flipped;
        }
        function fsort($tag1, $tag2) {
            
            return $this->flipped[$tag1->id] <=> $this->flipped[$tag2->id];
            
            if ($this->flipped[$tag1->id]<$this->flipped[$tag2->id]) return -1;
            else if ($this->flipped[$tag1->id]==$this->flipped[$tag2->id]) return 0;
            else return 1;
        }
    }
    
    $sorter=new Sorter($flipped);
    
    usort($tags, array($sorter, "fsort"));
    
    return $tags;
}

class Tag {
    public $id;
     
    function __construct($id) {
        $this->id=$id;
    }
}

$rtags=test();

foreach ($rtags as $tag) echo $tag->id." ";

Output for git.master, git.master_jit, rfc.property-hooks: 7 9 5 3

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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