How to assign a default value to the indexes that are missing from an array in php in numerical indexes?

Rahul K 0
Viewed 31

I went into a problem where I wanted to assign default values to the array indexes that are missing values.

Example,

I have an array like the below, $a = [0=>'hello', 2=>'hi', 5=>'test'];

Here, indexes 1,3, and 4 are missing. I want to make this array by adding values to the missing indexes the values can be any default value suppose '' an empty space.

The final array should look like the below,

$a = [0=>'hello', 1=>'', 2=>'hi',3=>'', 4=>'', 5=>'test'];

Looking for help to solve this issue.

arrays php
1 Answers

try this :

<?php

$array = [0=>'hello', 2=>'hi', 5=>'test'];

$existingKeys = array_keys($array);

//you can use any value instead of Rahul!!!
$newKeys = array_fill_keys(range(min($existingKeys), max($existingKeys)), "Rahul");
$array += $newKeys;

//optional, probably not needed
ksort($array);
print_r($array);

?>

Sajjad Toghraie0
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