PHP Array: rename key and update values from a given key

Question

I have the array:

$array = Array(
      [0] => Array(
                  [Branch] => 'Toyota',
                  [Country] => 'Jpn',
                  [id] => 'jp01'
      )
      [1] => Array(
                  [Branch] => 'Nissan',
                  [Country] => 'Jpn',
                  [id] => 'jp05'
      )
      [2] => Array(
                  [Branch] => 'Honda',
                  [Country] => 'Jpn',
                  [id] => 'jp20'
      ) )

What I want to do is:
1 - Change the key Branch to Brand, but without moving it to the end or the array.
2 - Update all the values to the key Country, changing Jpn to Japan

The result should be like this:

$array = Array(
      [0] => Array(
                  [Brand] => 'Toyota',
                  [Country] => 'Japan',
                  [id] => 'jp01'
      )
      [1] => Array(
                  [Brand] => 'Nissan',
                  [Country] => 'Japan',
                  [id] => 'jp05'
      )
      [2] => Array(
                  [Brand] => 'Honda',
                  [Country] => 'Japan',
                  [id] => 'jp20'
      ) )

I really appreciate your help.

Yes, 'Country' can be any string, but when updating, all will be changed to only one value — Derick
– Derick, Commented Aug 20, 2010 at 17:26

2ndkauboy · Accepted Answer · 2010-08-20 17:06:29Z

3

$newArray = array();
foreach($array as $ar){
    $newArray[] = array(
       'Brand' => $ar['Branch'],
       'Country' => 'Japan',
       'id' => $ar['id']
    )
}
$array = $newArray;

answered Aug 20, 2010 at 17:06

2ndkauboy

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1 Comment

LGT Over a year ago

Thanks for showing me just how stupid I am. "It's simple: Don't change the key, just create a new array and replace the old one."

Leon · Accepted Answer · 2010-08-20 17:10:18Z

1

foreach($array as &$item) {
    $branch = $item['Branch'];
    array_unshift($item, array("Brand"=>$branch));
    unset($item['Branch']);
    $item['Country'] = 'Japan'; 
}

Haven't tested it..

answered Aug 20, 2010 at 17:10

Leon

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1 Comment

2ndkauboy Over a year ago

If it works, that is a cool solution. Especially using an ampersand for the items so you can change the array without the need of the key. Very clever!

haydenmuhl · Accepted Answer · 2010-08-20 17:09:31Z

0

This should do it.

<?php
foreach($array as $k => $v) {
  $array[$k]['Brand'] = $array[$k]['Branch'];
  unset($array[$k]['Branch'];
  if($array[$k]['Country'] == 'Jpn') {
    $array[$k]['Country'] = 'Japan';
  }
}
?>

There are probably clever array functions that could do it, too, but this will get the job done.

answered Aug 20, 2010 at 17:09

haydenmuhl

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Comments

Aman · Accepted Answer · 2010-08-20 17:13:18Z

0

TRY:

<?php
foreach($array as $key => $data)
{
$data['Brand'] = $data['Branch'];
$data['Country'] = 'Japan';
unset($data['Branch']);
$array[$key] = $data;
}
?>

edited Aug 20, 2010 at 17:13

answered Aug 20, 2010 at 17:06

Aman

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6 Comments

Daniel Vandersluis Over a year ago

That'll put the Brand key at the end of the array.

Aillyn Over a year ago

So what? Keys in associative arrays should have no explicit order.

haydenmuhl Over a year ago

This will also update every 'Country' element to null, or possibly the empty string. $data['Japan'] does not exist.

Aman Over a year ago

hmm, that will.. But that shouldn't really matter in case of associative arrays.

Aman Over a year ago

@haydenmuhl: That was a typo.

|

Ben · Accepted Answer · 2010-08-20 17:27:40Z

0

foreach($array as $key => $subArray){
    foreach($subArray as $subkey => $value)
        if($value === 'Jpn') $subArray[$subkey] = 'Japan';
    $array[$key] = $subArray;
}


foreach($array as $key => $subArray){
    $subArray = array_flip($subArray);
    foreach($subArray as $subkey => $value)
        if($value === 'Branch') $subArray[$subkey] = 'Brand';
    $subArray = array_flip($subArray);
    $array[$key] = $subArray;
}

Outputs:

Array ( [0] => Array ( [Brand] => Toyota [Country] => Japan [id] => jp01 ) [1] => Array ( [Brand] => Nissan [Country] => Japan [id] => jp05 ) [2] => Array ( [Brand] => Honda [Country] => Japan [id] => jp20 ) )

edited Aug 20, 2010 at 17:27

answered Aug 20, 2010 at 17:15

Ben

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