Online PHP editor | rfc for gRnZQ

@ 2019-12-23T13:38:24Z

<?php
$data = [ 
 
    0 => [ 
         "category_id" => 20,
        "category_name" => "Category 1" ,
        "sub_categories" => [
                0 => [
                        "category_id" => 25,
                        "category_name" => "Category 1.1", 
                        "sub_categories" => ''
                    ],
                1=> [
                        "category_id" => 26,
                        "category_name" => "Category 1.2", 
                        "sub_categories" => ''
                    ],
                2 => [
                        "category_id" => 27,
                        "category_name" => "Category 1.3", 
                        "sub_categories" => [
                            0 => [
                                    "category_id" => 31,
                                    "category_name" => "Category 2.1", 
                                    "sub_categories" => ''
                                ],
                            1=> [
                                    "category_id" => 32,
                                    "category_name" => "Category 2.2", 
                                    "sub_categories" => ''
                                ],
                        ]
                    ],
  
        ]
    ],
    
    1=> [
        "category_id" => 21,
        "category_name" => "Category 2", 
        "sub_categories" => ''
    ],
];

function getCats($data, array &$ar, $res = ''){ 
    foreach($data as $arr){ 
        
        $res_new = ''; 
        $res_new .= $arr['category_name'] && $res ? $res.' -> '.$arr['category_name'] : $arr['category_name']; 
        
        $ar[] = ["category_id"=>$arr['category_id'], "category_name"=>$res_new, ];
       // echo $res_new.PHP_EOL; 
       // echo .PHP_EOL; 
         
        if(is_array($arr['sub_categories'])){  
            if (count($arr['sub_categories'])>0){  
                getCats($arr['sub_categories'], $ar, $res_new);
            }   
        }  
    }
}
   $ares = [];
   getCats($data,$ares);
   print_r($ares);

Output for git.master, git.master_jit, rfc.property-hooks: Array ( [0] => Array ( [category_id] => 20 [category_name] => Category 1 ) [1] => Array ( [category_id] => 25 [category_name] => Category 1 -> Category 1.1 ) [2] => Array ( [category_id] => 26 [category_name] => Category 1 -> Category 1.2 ) [3] => Array ( [category_id] => 27 [category_name] => Category 1 -> Category 1.3 ) [4] => Array ( [category_id] => 31 [category_name] => Category 1 -> Category 1.3 -> Category 2.1 ) [5] => Array ( [category_id] => 32 [category_name] => Category 1 -> Category 1.3 -> Category 2.2 ) [6] => Array ( [category_id] => 21 [category_name] => Category 2 ) )

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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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