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03. Clean Code URL Slug Generator 03. Clean Code URL Slug Generator

Medium +20 Points

Deskripsi Tantangan Problem Description

Buat fungsi `generateSlug($title)` yang mengubah judul artikel menjadi format URL slug (lowercase, spasi diganti strip `-`, hapus karakter khusus selain huruf & angka).

Create a function `generateSlug($title)` that converts a title into a clean URL slug (lowercased, spaces replaced by `-`, non-alphanumeric characters stripped).

Example Test Cases

Input: ["Belajar PHP Modern 2026!"]

Expected Output: "belajar-php-modern-2026"

Input: ["Laravel 13 & SOLID Principles"]

Expected Output: "laravel-13-solid-principles"

<?php

function generateSlug(string $title): string {
    $slug = strtolower($title);
    $slug = preg_replace('/[^a-z0-9\s-]/', '', $slug);
    $slug = preg_replace('/[\s-]+/', '-', $slug);
    return trim($slug, '-');
}

solution.php