Question

$original  = Array(
0=>"03A ",//first "03", substr("04w",0,2)=="03"
1=>"04a ",//first "04" of first "03"
2=>"05b ",
3=>"06c ",
4=>"07d ",

6=>"04w ",//second "04" of first "03"
7=>"05x ",
8=>"06y ",
9=>"07z ",

10=>"03B    ",//second "03"
11=>"04l    ",//first "04" of second "03" //substr("04w",0,2)=="03"
12=>"05m    ",
13=>"06n    ",
14=>"07o    ",

15=>"04l    ",//second "04" of second "03" //substr("04l",0,2)=="03"
16=>"05m    ",
17=>"06n    ",
18=>"07o    "
);

echo '<pre>';
print_r($original);
echo '</pre>';

function customize_array($original){
  $customized_array = array();
  foreach($original as $value) {
      if(substr($value,0,2) == "03") {
      // CHANGE 1
      $save = $value;// saved "03" yo put in child too.
      ++$r;//inc parent
      $j = 0; // child 
      $customized_array[$r][$j] =$value; // create parent
      } else {
      if (($j % 4) > 0) $value .= $value;
      // CHANGE 2
      else if ($j && $j % 4 == 0) $value = $save.$value;
      $customized_array[$r][floor($j / 4)] .= $value;
      ++$j;//inc child
      }
  }
  return $customized_array;
}

$display_list = customize_array($original);
echo '<pre>';
print_r($display_list);
echo '</pre>';

OUTPUT:

/*

Array
(
    [1] => Array
        (
            [0] => 03A  04a 05b 05b 06c 06c 07d 07d 
            [1] => 03A  04w 05x 05x 06y 06y 07z 07z 
        )

    [2] => Array
        (
            [0] => 03B  04l 05m 05m 06n 06n 07o 07o 
            [1] => 03B  04l 05m 05m 06n 06n 07o 07o 
        )

)

*/

Everybody here have any idea with the function to get the this result.

/*

   Array
(
    [1] => Array
        (
            [0] => 03A  04a 05b 06c 07d 
            [1] => 03A  04w 05x 06y 07z 
        )

    [2] => Array
        (
            [0] => 03B  04l 05m 06n 07o 
            [1] => 03B  04l 05m 06n     07o 
        )

)


*/

Answer 1

Two changes:

foreach($original as $value) {
    if(substr($value,0,2) == "03") {
        // CHANGE 1
        $save = $value;
        ++$r;//inc parent
        $j = 0; // child 
        $move_level[$r][$j] =$value;
    } else {
        if (($j % 4) > 0) $value .= $value;
        // CHANGE 2
        else if ($j && $j % 4 == 0) $value = $save.$value;
        $move_level[$r][floor($j / 4)] .= $value;
        ++$j;//inc child
    }
}

See it