How to Remove Numeric Keys in PHP Array?

Hi,

I am going to show you an example of php array remove numeric keys. you can understand a concept of how to remove numeric keys in array php. This example will help you how to remove numeric keys in php array. I explained simply step by step how to delete number keys from array in php. follow the below example for how to delete numeric keys from array in php.

we will use array_filter() function with is_string and ARRAY_FILTER_USE_KEY to remove numeric keys from php array. so, let's see the simple code of how to delete numeric keys from php array.

Example:

index.php

<?php
  
    $myArray = [1 => "One", "Two" => 2, 3 => "Three", "Four" => 4, 5 => "Five", "Six" => 6];
    
    $newArray = array_filter(
            $myArray,
            function ($k) { return is_string($k); },
            ARRAY_FILTER_USE_KEY
        );
    
    var_dump($newArray);
  
?>

Output:

array(3) {
  ["Two"]=> int(2)
  ["Four"]=> int(4)
  ["Six"]=> int(6)
}

I hope it can help you...