How can i create youtube shorts frontend code using HTML CSS JS WITH Scrolling options same like shorts

dva3121 — Sat, 24 May 2025 11:53:20 +0000

What is Developer Mode in Android? (You Won’t Believe What It Can Do.

dva3121 — Sat, 24 May 2025 11:42:55 +0000

Have you ever heard of Developer Mode in Android? Most people use their phones daily without knowing this secret power mode even exists. But guess what? It’s real. And once you unlock it, your phone becomes a whole new machine!

So, what is Developer Mode?
It’s a hidden section in Android phones made for tech geeks and app developers. But don’t worry—you don’t need to be a coder to open it. Anyone can turn it on with a simple trick (we’ll get to that). When active, it gives you control over how your phone works under the hood.

Want to speed up your phone? Fake your GPS location? Watch what apps are doing behind the scenes? YES, all that and more is possible with Developer Mode. It’s like becoming the boss of your phone!

How to unlock it?
Go to Settings > About Phone > Tap "Build Number" 7 times. Boom! A message pops up: “You are now a developer!”

What can you do with it?

Make your phone run faster by lowering animation speeds
Keep your screen on forever (goodbye, auto-lock!)
Debug apps like pros do
Even force your phone into desktop mode (if supported)

But warning: Don’t change stuff you don’t understand! One wrong setting could mess up things. So explore, but be smart.

In short, Developer Mode is Android’s hidden superpower. Most users don’t know it’s there—but now you do. Try it today and feel like a tech wizard. Just don’t tell everyone… let it be our little secret.

developer options: more information about it

🔍 Build Your Own Search Engine in PHP with Sitemap Parsing, Pagination, and Auto-Suggestions

dva3121 — Mon, 19 May 2025 06:02:41 +0000

how to build a simple PHP Search Engine with Sitemap Indexing, Pagination, and Auto-Suggestions — perfect for beginner to intermediate developers.

🔍 Build Your Own Search Engine in PHP with Sitemap Parsing, Pagination, and Auto-Suggestions

If you've ever wanted to build a simple search engine for your own content or a client project, this post will show you exactly how to do it — using PHP, MySQL, Tailwind CSS, and basic JavaScript for real-time auto-suggestions.

We'll cover:

✅ User authentication
✅ Submitting and parsing sitemaps
✅ Indexing pages in MySQL
✅ Search input with live suggestions
✅ Search result pagination

Let’s dive in!

🧱 1. Database Structure

Create a MySQL database and run the following SQL to set up required tables:

CREATE TABLE users (
  id INT AUTO_INCREMENT PRIMARY KEY,
  username VARCHAR(100) UNIQUE,
  password VARCHAR(255)
);

CREATE TABLE sitemaps (
  id INT AUTO_INCREMENT PRIMARY KEY,
  user_id INT,
  url TEXT,
  submitted_at DATETIME DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE search_index (
  id INT AUTO_INCREMENT PRIMARY KEY,
  url TEXT,
  title TEXT,
  description TEXT,
  content LONGTEXT,
  indexed_at DATETIME DEFAULT CURRENT_TIMESTAMP
);

🔐 2. User Registration and Login (Tailwind Styled)

`register.php` – Tailwind-Styled Registration Form

<?php
include 'db.php';
$message = "";

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    $username = trim($_POST['username']);
    $password = $_POST['password'];

    if ($username && $password) {
        $hash = password_hash($password, PASSWORD_DEFAULT);
        $stmt = $conn->prepare("INSERT INTO users (username, password) VALUES (?, ?)");
        $stmt->bind_param("ss", $username, $hash);
        if ($stmt->execute()) {
            $message = "Registration successful. <a href='login.php' class='underline text-blue-500'>Login here</a>.";
        } else {
            $message = "Error: Username might already exist.";
        }
    } else {
        $message = "All fields are required.";
    }
}
?>
<!-- HTML form as shown in previous answer (Tailwind-styled) -->

`login.php` – Secure Login

<?php
session_start();
include 'db.php';
$message = "";

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    $username = trim($_POST['username']);
    $password = $_POST['password'];

    $stmt = $conn->prepare("SELECT id, password FROM users WHERE username = ?");
    $stmt->bind_param("s", $username);
    $stmt->execute();
    $stmt->bind_result($userId, $hash);

    if ($stmt->fetch() && password_verify($password, $hash)) {
        $_SESSION['user_id'] = $userId;
        header("Location: dashboard.php");
        exit;
    } else {
        $message = "Invalid credentials.";
    }
}
?>
<!-- Tailwind styled login form similar to register.php -->

🗺️ 3. Submit Sitemap and Crawl URLs

`submit_sitemap.php`

<?php
session_start();
include 'db.php';

if (!isset($_SESSION['user_id'])) {
    die("Login required.");
}

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    $sitemap = $_POST['sitemap'];
    $userId = $_SESSION['user_id'];

    $stmt = $conn->prepare("INSERT INTO sitemaps (user_id, url) VALUES (?, ?)");
    $stmt->bind_param("is", $userId, $sitemap);
    $stmt->execute();

    // Start background crawl (e.g. queue for cron job)
    file_get_contents("http://localhost/crawler.php?sitemap=" . urlencode($sitemap));
    echo "Sitemap submitted. Crawling started!";
}
?>

🤖 4. Sitemap Crawler and Indexer (Basic)

`crawler.php`

<?php
include 'db.php';

function fetchSitemapUrls($sitemapUrl) {
    $xml = @simplexml_load_file($sitemapUrl);
    $urls = [];
    if ($xml && $xml->url) {
        foreach ($xml->url as $url) {
            $urls[] = (string) $url->loc;
        }
    }
    return $urls;
}

function indexUrl($url) {
    $html = @file_get_contents($url);
    if (!$html) return;

    preg_match("/<title>(.*?)<\/title>/i", $html, $titleMatch);
    preg_match("/<meta name=\"description\" content=\"(.*?)\"/i", $html, $descMatch);
    $title = $titleMatch[1] ?? 'No Title';
    $desc = $descMatch[1] ?? '';
    $cleanText = strip_tags($html);

    global $conn;
    $stmt = $conn->prepare("INSERT INTO search_index (url, title, description, content) VALUES (?, ?, ?, ?)");
    $stmt->bind_param("ssss", $url, $title, $desc, $cleanText);
    $stmt->execute();
}

$sitemap = $_GET['sitemap'] ?? '';
if ($sitemap) {
    $urls = fetchSitemapUrls($sitemap);
    foreach ($urls as $url) {
        indexUrl($url);
    }
    echo "Indexed " . count($urls) . " pages.";
}

Use a cron job to trigger this script in production or queue it after submission.

🔎 5. Search Engine Interface (with Autocomplete + Pagination)

`index.php`

<?php
include 'db.php';
$q = $_GET['q'] ?? '';
$page = max(1, intval($_GET['page'] ?? 1));
$perPage = 10;
$offset = ($page - 1) * $perPage;

$total = 0;
$results = [];

if ($q) {
    $stmt = $conn->prepare("SELECT COUNT(*) FROM search_index WHERE title LIKE CONCAT('%', ?, '%') OR content LIKE CONCAT('%', ?, '%')");
    $stmt->bind_param("ss", $q, $q);
    $stmt->execute(); $stmt->bind_result($total); $stmt->fetch(); $stmt->close();

    $stmt = $conn->prepare("SELECT * FROM search_index WHERE title LIKE CONCAT('%', ?, '%') OR content LIKE CONCAT('%', ?, '%') LIMIT ? OFFSET ?");
    $stmt->bind_param("ssii", $q, $q, $perPage, $offset);
    $stmt->execute(); $results = $stmt->get_result();
}
?>
<!-- Tailwind search form, result loop, and pagination from previous answer -->

`suggest.php` for AJAX Autocomplete

<?php
include 'db.php';
$q = $_GET['q'] ?? '';
$suggestions = [];

if ($q) {
    $stmt = $conn->prepare("SELECT DISTINCT title FROM search_index WHERE title LIKE CONCAT(?, '%') LIMIT 10");
    $stmt->bind_param("s", $q);
    $stmt->execute();
    $res = $stmt->get_result();
    while ($row = $res->fetch_assoc()) {
        $suggestions[] = $row['title'];
    }
}
header('Content-Type: application/json');
echo json_encode($suggestions);

🚀 Final Thoughts

You now have a working PHP search engine that:

Lets users submit and index sitemaps
Crawls and stores searchable content
Provides a nice UI with Tailwind
Includes live search suggestions and pagination

🔧 Bonus Ideas:

Add full-text indexing with MySQL FULLTEXT
Use Redis to cache popular queries
Add tags or categories to indexed pages

DEV Community: dva3121

How can i create youtube shorts frontend code using HTML CSS JS WITH Scrolling options same like shorts

What is Developer Mode in Android? (You Won’t Believe What It Can Do.

🔍 Build Your Own Search Engine in PHP with Sitemap Parsing, Pagination, and Auto-Suggestions

🔍 Build Your Own Search Engine in PHP with Sitemap Parsing, Pagination, and Auto-Suggestions

🧱 1. Database Structure

🔐 2. User Registration and Login (Tailwind Styled)

register.php – Tailwind-Styled Registration Form

login.php – Secure Login

🗺️ 3. Submit Sitemap and Crawl URLs

submit_sitemap.php

🤖 4. Sitemap Crawler and Indexer (Basic)

crawler.php

🔎 5. Search Engine Interface (with Autocomplete + Pagination)

index.php

suggest.php for AJAX Autocomplete

🚀 Final Thoughts

🔧 Bonus Ideas:

`register.php` – Tailwind-Styled Registration Form

`login.php` – Secure Login

`submit_sitemap.php`

`crawler.php`

`index.php`

`suggest.php` for AJAX Autocomplete