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Re: convert array keys to paths

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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

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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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