组数组并使用相同的键值分配唯一编号

Question

I have an an array in which I need to assign unique batch id to products belongs to different Retailer

foreach($data as $type){
$grouped_types[$type['retailer']][] = $type;
}

$data is my array

Array
 ( 
[1] => Array
    (

        [productid] => 1001
        [mrp] => 444
        [whpoid] => 105
        [retailer] => HYD-48AC
        [manufacturerbarcode] => 
        [comments] => 
        [lastmodifiedby] => 
        [lastmodifieddate] => 2019-02-12 11:49:19
    )

[2] => Array
    (
        [productid] => 1002
        [mrp] => 444
        [whpoid] => 106
        [retailer] => HYD-48AC
        [manufacturerbarcode] => 
        [comments] => 
        [lastmodifiedby] => 
        [lastmodifieddate] => 2019-02-12 11:49:19
    )

[3] => Array
    (
        [productid] => 1003
        [mrp] => 444
        [whpoid] => 105
        [retailer] => HYD-48AC
        [manufacturerbarcode] => 
        [comments] => 
        [lastmodifiedby] => 
        [lastmodifieddate] => 2019-02-12 11:49:19
    )
 [4] => Array
    (
        [productid] => 1005
        [mrp] => 444
        [whpoid] => 105
        [retailer] => PUN-48AC
        [manufacturerbarcode] => 
        [comments] => 
        [lastmodifiedby] => 
        [lastmodifieddate] => 2019-02-12 11:49:19
    )

Expected Output So array 2 and 3 belongs to same retailer so they have same batch id.I need to assign unique batch id to each diff retailer but product under same retailer should have same batch id.Kindly help.Thanks in advance

Array
 ( 
  [1] => Array
  (

    [productid] => 1001
    [mrp] => 444
    [whpoid] => 105
    [retailer] => HYD-48AC
    [manufacturerbarcode] => 
    [comments] => 
    [lastmodifiedby] => 
    [lastmodifieddate] => 2019-02-12 11:49:19
    [batchid] => B001
  )

  [2] => Array
  (
    [productid] => 1002
    [mrp] => 444
    [whpoid] => 106
    [retailer] => HYD-48AC
    [manufacturerbarcode] => 
    [comments] => 
    [lastmodifiedby] => 
    [lastmodifieddate] => 2019-02-12 11:49:19
    [batchid] => B002
  )

 [3] => Array
   (
    [productid] => 1003
    [mrp] => 444
    [whpoid] => 105
    [retailer] => HYD-48AC
    [manufacturerbarcode] => 
    [comments] => 
    [lastmodifiedby] => 
    [lastmodifieddate] => 2019-02-12 11:49:19
    [batchid] => B002
   )
  [4] => Array
  (
    [productid] => 1005
    [mrp] => 444
    [whpoid] => 105
    [retailer] => PUN-48AC
    [manufacturerbarcode] => 
    [comments] => 
    [lastmodifiedby] => 
    [lastmodifieddate] => 2019-02-12 11:49:19
    [batchid] => B003
  )

Answer 1

Step 1

Take key value pair of retailer array like example given below

//Where key as retailer id and value as batch id
$retailers = array(
     "HYD-48AC" => "B001",
     "PUN-48AC" => "B001",
); 

Now in you foreach loop apply below logic

foreach($data as $type){
    $batch_id = $retailers[$type['retailer'];
    $type['batchid'] = $batch_id;
    $grouped_types[$type['retailer']][] = $type;
}

This will 100% work for you.