How to make the value of the array of keys and values in php?

Question

How to make the value of the array of keys and values in php ? Do it all in one line is not going through an array, and use it for the built-in functions for working with arrays

$array = [
  '0' => 'Amsterdam',
  '1' => 'Berlin',
  '2' => 'Busingen',
];

Result:

$result= [
  'Amsterdam' => 'Amsterdam',
  'Berlin' => 'Berlin',
  'Busingen' => 'Busingen',
];

hindmost · Accepted Answer · 2015-02-27 12:35:31Z

4

You can use array_combine:

array_combine(array_values($array), array_values($array));

Or simply:

array_combine($array, $array);

edited Feb 27, 2015 at 12:35

answered Oct 3, 2014 at 12:22

hindmost

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2 Comments

MSadura Over a year ago

good idea with array_combine but I's say it should be just array_combine($array,$array) (OP wants result array to consist of $array's values)

hindmost Over a year ago

@MarkS @ Ben Fortune Thanks for the note. I've updated the answer

David Ansermot · Accepted Answer · 2014-10-03 12:27:54Z

0

function transformArrayKeyValue($array) {    

    $result = array();
    foreach ($array as $key => $value) {
        $result[$value] = $value;
    }

    return $result;
}

Try this code. It should be do what you expected.

Edit : Fixed $key => $value....

edited Oct 3, 2014 at 12:27

answered Oct 3, 2014 at 12:21

David Ansermot

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1 Comment

wavemode Over a year ago

Inefficient and doesn't work properly, check $result[$key] = $key; to $result[$value] = $value;

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