How to Remove String Keys in PHP Array?

Hey Dev,

In this short tutorial, we will cover a php array remove string keys. This article will give you a simple example of how to remove string keys in array php. This article will give you a simple example of how to remove string keys in php array. This post will give you a simple example of how to delete string keys from array in php.

we will use array_filter() function with is_numeric and ARRAY_FILTER_USE_KEY to remove string keys from php array. so, let's see the simple code of how to delete string 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_numeric($k); },
            ARRAY_FILTER_USE_KEY
        );
    
    var_dump($newArray);
  
?>

Output:

array(3) {
  [1]=> string(3) "One"
  [3]=> string(5) "Three"
  [5]=> string(4) "Five"
}

I hope it can help you...