PHP Aligning Array Key Values

Question

I've Googled it for two days, and tried looking at the PHP manual, and I still can't remember that function that aligns the key values for PHP arrays.

All I'm looking for is the function that takes this:

Array
(
    [0] => 1
    [3] => 2
    [4] => 3
    [7] => 4
    [9] => 5
)

And converts it into this:

Array
(
    [0] => 1
    [1] => 2
    [2] => 3
    [3] => 4
    [4] => 5
)

Basically, the array is first sorted by key (their values attached to them stay with them), then all the keys are set to all the counting numbers, consecutively, without skipping any number (0,1,2,3,4,5,6,7,8,9...). I saw it being used with ksort() a few months ago, and can't see to remember or find this elusive function.

Felix Kling · Accepted Answer · 2010-12-25 16:12:10Z

4

Well, you see, this one is hard, because the general description on the PHP array functions page does not say that this function does what you're looking for.

But you can sort the array using ksort(), and then use this: array_values() . From the page from the PHP manual:

array_values() returns all the values from the input array and indexes numerically the array.

edited Dec 25, 2010 at 16:12

Felix Kling

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answered Dec 25, 2010 at 16:02

LostInTheCode

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1 Comment

Xeoncross Over a year ago

I don't understand the use of ksort() here. array_values() should be enough because we are deleting the keys anyway. If anything there should be a sort() (on key values).

Community · Accepted Answer · 2017-05-23 11:47:49Z

1

You can use array_merge:

$array = array_merge($array);

It will reindex values with numeric keys.

Update: Using array_values as proposed in @LostInTheCode's answer is probably more descriptive.

edited May 23, 2017 at 11:47

CommunityBot

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answered Dec 25, 2010 at 16:01

Felix Kling

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Comments

RobertPitt · Accepted Answer · 2010-12-25 16:14:19Z

0

function array_reset_index_keys($array)
{
    $return = array();foreach($array as $k => $v){$return[] = $v;}return $return;
}

And then use like a regular function, should re index the array

you can also use native functions such as array_values which returns the values of an array into a single dimension array, causing it to be re indexed .

edited Dec 25, 2010 at 16:14

answered Dec 25, 2010 at 16:07

RobertPitt

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4 Comments

Felix Kling Over a year ago

What do you mean with 2d array? array_values just returns the values. There is only one dimension.

RobertPitt Over a year ago

yea, i was adding native alternatives while you commented sir :)

Felix Kling Over a year ago

I was changing my comment while you commented sir ;)

RobertPitt Over a year ago

2d was meant to be 'single dimension'

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