How can I reset array key and shift first key to 1 in php?

Question

I found a similar question but it doesn't full fill what I need How to reset keys after unsetting values in an array?

my array is like

$fruits = array(
 [0] => 'apple'
 [1] => 'banana'
 [3] => 'orange'
 [4] => 'melon'
);

With array_values I can reset it starting from 0

array_values($fruits);

// array fixed 
array(4) {
 [0] => 'apple'
 [1] => 'banana'
 [2] => 'orange'
 [3] => 'melon'
}

But I need to reset starting from 1 instead 0, is it possible?

// array fixed
array(4) {
 [1] => 'apple'
 [2] => 'banana'
 [3] => 'orange'
 [4] => 'melon'
}

array always start with `0` .. make a `foreach loop` with an iteration and assign a new array yourself starting with `1` — ChrisG, Jun 10 '20 at 16:16
Why would you want to do this? As pointed out above, normal arrays start at 0. — Barmar, Jun 10 '20 at 16:18

WebDev · Accepted Answer · 2020-06-10T16:32:17.737

Please try following code.

function reindex ($arr, $start_index)
{
    $arr = array_combine(range($start_index,  count($arr) + ($start_index - 1)), array_values($arr)); 
    return $arr;
}

Following is my test result.

$arr = array ( 
    0 => 'apple', 
    1 => 'banana', 
    3 => 'orange',  
    4 => 'melon' 
); 

$arr = reindex ($arr, 1);

foreach( $arr as $key => $value) {  
    echo "Index: ".$key." Value: ".$value."\n";  
}

And following is the output.

Index: 1 Value: apple
Index: 2 Value: banana
Index: 3 Value: orange
Index: 4 Value: melon

You can test this code on following online tester.

http://sandbox.onlinephpfunctions.com/

score 1 · Answer 2 · answered Jun 10 '20 at 16:28

1

You can do it by adding 1 to key:

foreach ($array as $key => $value) {
     $array[$key+1] = $array[$key];
     unset($array[$key];
}

But its working just when your array starts with 0 key.

That you can do with: array_values($array);

answered Jun 10 '20 at 16:28

Marty1452

430
5
19

Your answer give me an idea so i whent like: foreach ($array as $key => $value) { echo $key+1 ." = ". $array[$key]; unset($array[$key]; } – Samuel Ramzan Aug 24 '22 at 18:44

How can I reset array key and shift first key to 1 in php?

2 Answers2