CODEWITHSUNDEEP
php
Adam Ramadhan
Adam Ramadhan

Reputation: 22810

array combine by array key in php?

is there a good function that can combine array by key ? ( in this example is pid )

array
  0 => 
    array
      'product' => string 'a product pid 3' (length=9)
      'name' => string 'adamramadhan' (length=12)
      'pid' => string '3' (length=1)
      'timecreate' => string '2011-02-26 13:30:07' (length=19)
  1 => 
    array
      'product' => string 'a product pid 4' (length=8)
      'name' => string 'adamramadhan' (length=12)
      'pid' => string '4' (length=1)
      'timecreate' => string '2011-02-26 13:30:54' (length=19)

and

array
  0 => 
    array
      'pid' => string '3' (length=1)
      'comment' => string 'a comment on pid 3' (length=8)
  1 => 
    array
      'pid' => string '4' (length=1)
      'comment' => string 'a comment on pid 4' (length=8)
  2 => 
    array
      'pid' => string '3' (length=1)
      'comment' => string 'a comment on pid 3' (length=5)
  3 => 
    array
      'pid' => string '4' (length=1)
      'comment' => string 'a comment on pid 4' (length=5)
  4 => 
    array
      'pid' => string '3' (length=1)
      'comment' => string 'a comment on pid 3' (length=7)
  5 => 
    array
      'pid' => string '4' (length=1)
      'comment' => string 'a comment on pid 4' (length=7)
  6 => 
    array
      'pid' => string '3' (length=1)
      'comment' => string 'a comment on pid 3' (length=18)
  7 => 
    array
      'pid' => string '4' (length=1)
      'comment' => string 'a comment on pid 4' (length=18)

to something like

array
  0 => 
    array
      'product' => string 'a product pid 3' (length=9)
      'name' => string 'adamramadhan' (length=12)
      'pid' => string '3' (length=1)
      'timecreate' => string '2011-02-26 13:30:07' (length=19)
      'comments' => array 
        0 => 
          array
            'pid' => string '3' (length=1)
            'comment' => string 'a comment on pid 3' (length=8)
        2 => 
          array
            'pid' => string '3' (length=1)
            'comment' => string 'a comment on pid 3' (length=5)
        4 => 
          array
            'pid' => string '3' (length=1)
            'comment' => string 'a comment on pid 3' (length=7)
        6 => 
          array
            'pid' => string '3' (length=1)
            'comment' => string 'a comment on pid 3' (length=18)
  1 => 
    array
      'product' => string 'a product pid 4' (length=8)
      'name' => string 'adamramadhan' (length=12)
      'pid' => string '4' (length=1)
      'timecreate' => string '2011-02-26 13:30:54' (length=19)
      'comments' => array 
        1 => 
          array
            'pid' => string '4' (length=1)
            'comment' => string 'a comment on pid 4' (length=8)
        3 => 
          array
            'pid' => string '4' (length=1)
            'comment' => string 'a comment on pid 4' (length=5)
        5 => 
          array
            'pid' => string '4' (length=1)
            'comment' => string 'a comment on pid 4' (length=7)
        7 => 
          array
            'pid' => string '4' (length=1)
            'comment' => string 'a comment on pid 4' (length=18)

or with no pid on each product comments array ( nested on products array ) ?

thanks for looking in.

Adam Ramadhan

Upvotes: 0

Views: 393

Answers (1)

powtac
powtac

Reputation: 41050

// Use pid as key
foreach ($arr1 as $key => $value) {
    $arr1_new[$value['pid']] = $value;
}

// Move comments into $arr1_new
foreach($arr2 as $key => $value) {
    $arr2_new[$value['pid']]['comments'][] = $value['comment'];
    // $arr2_new[$value['pid']]['comments'][] = $value; // if you really need all information here...
}

var_dump($arr2_new);

Upvotes: 2

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