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Re: convert array keys to paths

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On 7/24/2021 3:06 AM, alex wrote:
> Il 24/07/21 03:14, Arne Vajhøj ha scritto:
>> On 6/28/2021 6:57 AM, alex wrote:
>>> Look at this array
>>>
>>> array (
>>>    'a' =>
>>>    array (
>>>      'b1' =>
>>>      array (
>>>        'c1' => 1,
>>>        'c2' => 2,
>>>        'c3' => 3,
>>>      ),
>>>      'b2' =>
>>>      array (
>>>        'c' => 4,
>>>      ),
>>>    ),
>>> )
>>>
>>> You can convert it to
>>>
>>> array (
>>>    'a/b1/c1' => 1,
>>>    'a/b1/c2' => 2,
>>>    'a/b1/c3' => 3,
>>>    'a/b2/c' => 4,
>>> )
>>>
>>> Possibly without using a complex set of instructions:
>>> foeach, array_map (), etc.
>>
>> A little bit of complexity may be needed.
>>
>> :-)
>>
>> I came up with:
>>
>> function pathjoin_help($o, $elms, &$res) {
>>      if(is_int($o)) {
>>          $res[implode('/', $elms)] = $o;
>>      } else if(is_array($o)) {
>>          $elms[] = null;
>>          foreach($o as $pathelm => $value) {
>>              $elms[count($elms)-1] = $pathelm;
>>              pathjoin_help($value, $elms, $res);
>>          }
>>      } else {
>>          die("Houston we have a problem");
>>      }
>> }
>>
>> function pathjoin($a) {
>>      $res = array();
>>      pathjoin_help($a, array(), $res);
>>      return $res;
>> }
>>
>> Arne
> 
> function pathjoin_help($o, $elms, &$res) {
>      if(is_int($o)) {
>          $res[implode('/', $elms)] = $o;
>      } else if(is_array($o)) {
>          $elms[] = null;
>          foreach($o as $pathelm => $value) {
>              $elms[count($elms)-1] = $pathelm;
>              pathjoin_help($value, $elms, $res);
>          }
>      } else {
>          die("Houston we have a problem");
>      }
> }
> 
> function pathjoin($a) {
>      $res = array();
>      pathjoin_help($a, array(), $res);
>      return $res;
> }
> 
> print_r(
>      pathjoin(
>          array (
>            'a' =>
>            array (
>              'b1' =>
>              array (
>                'c1' => '1',
>                'c2' => 2,
>                'c3' => 3,
>              ),
>              'b2' =>
>              array (
>                'c' => 4,
>              ),
>            ),
>          )
>      )
> );
> 
> Houston we have a problem

You changed:

'c1' => 1

to:

'c1' => '1'

and my code required integer.

If you want the final item to be anything then you can use:

function pathjoin_help($o, $elms, &$res) {
     if(is_array($o)) {
         $elms[] = null;
         foreach($o as $pathelm => $value) {
             $elms[count($elms)-1] = $pathelm;
             pathjoin_help($value, $elms, $res);
         }
     } else {
         $res[implode('/', $elms)] = $o;
     }
}

Arne

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convert array keys to paths alex <1j9448a02@lnx159sneakemail.com.invalid> - 2021-06-28 12:57 +0200
  Re: convert array keys to paths Arne Vajhøj <arne@vajhoej.dk> - 2021-07-23 21:14 -0400
    Re: convert array keys to paths alex <1j9448a02@lnx159sneakemail.com.invalid> - 2021-07-24 09:06 +0200
      Re: convert array keys to paths Arne Vajhøj <arne@vajhoej.dk> - 2021-07-24 20:36 -0400
        Re: convert array keys to paths alex <1j9448a02@lnx159sneakemail.com.invalid> - 2021-07-25 12:50 +0200
          Re: convert array keys to paths He Llo <ya12983@mail.com> - 2021-08-05 05:25 -0700

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