Online PHP editor | rfc for TThap

@ 2016-11-18T09:43:25Z

<?php

$menu = array(
    array(1,3,'Wurm 1.1',    2, 10),
    array(2,6,'Vogel 2.1',   2, 30),
    array(3,0,'Tiger 1',     1, 10),
    array(4,6,'Hund 2.2',    2, 40),
    array(5,3,'Katze 1.2',   2, 11),
    array(6,0,'Pferd 2',     1, 20),
    array(7,1,'Baer 1.1.1',  3, 0),
    array(8,3,'Schwein 1.3', 2, 12),
    array(9,4,'Esel 2.2.1',  3, 0),
);

// Algorithmus hier
/*
steps:
    1. sort items by levelId and sortId - finished
    2. get max levelId value 'x' = iterations - ...that seems to be not the way to go.
                                                
                                                better way would be recursion for each element and search for children
                                                belonging to the current menuId....
                                                
    3. ...
*/

const IDX_ID = 0;
const IDX_PARENT = 1;
const IDX_SORT = 4;


$result = array();

foreach ($menu as $key => $row){
    $levelId[$key] = $row[3];
    $sortId[$key] = $row[4];
}

array_multisort($levelId, SORT_ASC, $sortId, SORT_ASC, $menu);

$parentId = 4;
$items = array_filter($menu, function($item) use ($parentId) {
        return $item[IDX_PARENT] == $parentId;
    });
    
var_dump($items);

$target = array(
    array(3,0,'Tiger 1',     1, 10),
    array(1,3,'Wurm 1.1',    2, 10),
    array(7,1,'Baer 1.1.1',  3, 0),
    array(5,3,'Katze 1.2',   2, 11),
    array(8,3,'Schwein 1.3', 2, 12),
    array(6,0,'Pferd 2',     1, 20),
    array(2,6,'Vogel 2.1',   2, 30),
    array(4,6,'Hund 2.2',    2, 40),
    array(9,4,'Esel 2.2.1',  3, 0),
);

//var_dump($result == $target);

Output for git.master, git.master_jit, rfc.property-hooks: array(1) { [8]=> array(5) { [0]=> int(9) [1]=> int(4) [2]=> string(10) "Esel 2.2.1" [3]=> int(3) [4]=> int(0) } }

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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