Function to create a slug from a string

create_a_slug.php

//Create a slug
function createSlug($text) {
    // Convert the string to lowercase
    $lowercaseText = strtolower($text);

    // Replace non-number/letters with hyphens
    $slug = preg_replace('/[^a-zA-Z0-9]/', '-', $lowercaseText);

    return $slug;
}