trjhtr

I have written the code below and I got the result what I wanted as below. But I needed pass to make the three-dimensional array for the result. Can I avoid to make three dimensional result? And I hope using only array_key_exists() and array_push() and unset().

The final result:

 Array
(
[0] => Array
 (
 [name] => Strawberry
 [id] => 10
 )

[1] => Array
 (
 [name] => Strawberry
 [id] => 60
 )

[2] => Array
 (
 [id] => 13
 )

[3] => Array
 (
 [name] => Apple
 [id] => 20
 )

[4] => Array
 (
 [name] => Apple
 [id] => 50
 )

[5] => Array
 (
 [id] => 28
 )

[6] => Array
 (
 [name] => Mandarin
 [id] => 30
 ))

The mid result:

 Array
(
[0] => Array
 (
 [0] => Array
 (
 [name] => Strawberry
 [id] => 10
 )

 [1] => Array
 (
 [name] => Strawberry
 [id] => 60
 )

 )

[1] => Array
 (
 [id] => 13
 )

[2] => Array
 (
 [0] => Array
 (
 [name] => Apple
 [id] => 20
 )

 [1] => Array
 (
 [name] => Apple
 [id] => 50
 )

 )

[3] => Array
 (
 [id] => 28
 )

[4] => Array
 (
 [0] => Array
 (
 [name] => Mandarin
 [id] => 30
 )

 ))

My code:

<?php

$array = array(
 array(
 'name' => 'Strawberry',
 'id' => '10'
 ),
 array(
 'id' => '13'
 ),
 array(
 'name' => 'Apple',
 'id' => '20'
 ),
 array(
 'id' => '28'
 ),
 array(
 'name' => 'Mandarin',
 'id' => '30'
 ),
 array(
 'name' => 'Apple',
 'id' => '50'
 ),
 array(
 'name' => 'Strawberry',
 'id' => '60'
 )
);
$arraylength = count($array);
$result = array();//仮の結果。結果として三次元配列になる。
$bararray = array();// idだけの配列を抜き出す。


for ($j = 0; $j < $arraylength; $j++) 
 if (array_key_exists('id', $array[$j]) == true && array_key_exists('name', $array[$j]) != true) 
 $newarr = array();
 $newarr['id'] = $array[$j]['id'];
 array_push($bararray, $newarr);
 
// idのみの配列を抜き出した。
$j = 0;
for ($i = 0; $i < $arraylength; $i++) 

 $newarr = array();
 for ($k = $i; $k < $arraylength; $k++) 
 if (array_key_exists('id', $array[$i]) == true && array_key_exists('name', $array[$i]) == true && array_key_exists('name', $array[$k]) == true && $array[$k]['name'] == $array[$i]['name']) 
 array_push($newarr, $array[$k]);
 if ($i != $k) 
 unset($array[$k]);
 $arraylength--;
 
 ;
 
 

 if (!$newarr) 
 array_push($result, $bararray[$j]);
 $j++;
 else 
 array_push($result, $newarr);
 
//仮の結果、三次元配列はここまで
print_r($result);
$realresult = array();//求めたい結果
$resultlength = count($result);
for ($k = 0; $k < $resultlength; $k++) 
 $resultArraylength = count($result[$k]);
 if ($resultArraylength == 1) 
 if (is_array($result[$k]) == true && array_key_exists(0, $result[$k]) == false) 
 array_push($realresult, $result[$k]);
 else 
 array_push($realresult, $result[$k]['0']);
 

 else 
 for ($m = 0; $m < $resultArraylength; $m++) 
 array_push($realresult, $result[$k][$m]);
 
 



?>

You can iterate (and reduce with each pass) the input array and group the like-names in the result array. I am assuming all of the id values are already in the correct order. See inline comments for how it works.

Code: (Demo)

$array=[
 ['name'=>'Strawberry','id'=>'10'],
 ['id'=>'13'],
 ['name'=>'Apple','id'=>'20'],
 ['id'=>'28'],
 ['name'=>'Mandarin','id'=>'30'],
 ['name'=>'Apple','id'=>'50'],
 ['name'=>'Strawberry','id'=>'60']
];

while($first=current($array)) // while $array is not empty, grab the first subarray
 if(isset($first['name'])) // if the grabbed subarray has a 'name' key
 foreach($array as $i=>$sub) // perform full scan of $array 
 if(isset($sub['name']) && $sub['name']===$first['name'])
 $result=$sub; // store subarrays with matching name value
 unset($array[$i]); // remove stored subarray from $array
 
 
 else
 $result=array_shift($array); // no 'name' key, just store and remove from $array
 

var_export($result);

Output:

array (
 0 => 
 array (
 'name' => 'Strawberry',
 'id' => '10',
 ),
 1 => 
 array (
 'name' => 'Strawberry',
 'id' => '60',
 ),
 2 => 
 array (
 'id' => '13',
 ),
 3 => 
 array (
 'name' => 'Apple',
 'id' => '20',
 ),
 4 => 
 array (
 'name' => 'Apple',
 'id' => '50',
 ),
 5 => 
 array (
 'id' => '28',
 ),
 6 => 
 array (
 'name' => 'Mandarin',
 'id' => '30',
 ),
)