Online PHP editor | output for WXd8E

@ 2020-12-02T06:46:04Z

<?php

$arr1 = array(
        0 => ['product_type'=>'manufacturer','id'=>1], 
        1 => ['product_type'=>'manufacturer','id'=>2], 
        2 => ['product_type'=>'seller'], 
        3 => ['product_type'=>'seller'],
        4 => ['product_type'=>'seller'],
        5 => ['product_type'=>'seller'],
        6 => ['product_type'=>'seller'],
        7 => ['product_type'=>'manufacturer','id'=>3], 
    ) ;
    
    
function rearrange(&$arr, $n) 
{ 
     for ($i = 0; $i < $n; $i++) 
     {  
        $j = $i+1;
        if($arr[$i]['product_type'] =='manufacturer'){
            if($j%4!= 0){
                //echo $i;
                $temp = $arr[$i];
                $arr[$i] = $arr[$i + 1]; 
                $arr[$i + 1] = $temp;
            } else {
                if ($i==0 || $i==1 || $i==2) {
                  $temp = $arr[$i];
                  $arr[$i] = $arr[$i + 1]; 
                  $arr[$i + 1] = $temp;
                } else {
                  $temp = $arr[$i];
                  $arr[$i] = $temp;
                }
                
            }
        } else {
          $temp = $arr[$i];
          $arr[$i] = $temp;
        }
     } 
  
   
    return $arr;
} 
$keys    = array_keys ($arr1);
$n = count ($keys);
$arr = rearrange($arr1, $n); 
print_r($arr);

Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6 - 8.3.7: Array ( [0] => Array ( [product_type] => manufacturer [id] => 2 ) [1] => Array ( [product_type] => seller ) [2] => Array ( [product_type] => seller ) [3] => Array ( [product_type] => manufacturer [id] => 1 ) [4] => Array ( [product_type] => seller ) [5] => Array ( [product_type] => seller ) [6] => Array ( [product_type] => seller ) [7] => Array ( [product_type] => manufacturer [id] => 3 ) )
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Array ( [0] => Array ( [product_type] => manufacturer [id] => 2 ) [1] => Array ( [product_type] => seller ) [2] => Array ( [product_type] => seller ) [3] => Array ( [product_type] => manufacturer [id] => 1 ) [4] => Array ( [product_type] => seller ) [5] => Array ( [product_type] => seller ) [6] => Array ( [product_type] => seller ) [7] => Array ( [product_type] => manufacturer [id] => 3 ) )

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