Is it better to learn html, javascript, php, then mysql if you want to start ur site?

Good instincts in the original question; the answers from @Luckychap, @Taywin and @mark4013 point in the right direction. Below is a concise, practical workflow that fills gaps in the thread (local setup, secure DB access, common pitfalls) so the progression leads to a working, maintainable site.

Start with markup and style: learn semantic HTML and responsive CSS (mobile-first, flex/grid) and basic accessibility. Next add client-side behavior: DOM manipulation, event handling, and modern JavaScript (ES6 modules, promises/async). Use the browser devtools and a live-reload editor to iterate on static pages before adding any server code.

When ready to go server-side, combine the server language and database learning so form handling, sessions and persistence are practiced together. Use a local dev stack (PHP built-in server, XAMPP/WAMP/MAMP or Docker) rather than deploying immediately. Learn fundamental SQL (schema design, normalization, indexes) alongside secure server-side patterns: prepared statements, output escaping, and proper password hashing.

Small, secure PHP example (PDO + prepared statement + password hashing):

<?php
$pdo = new PDO('mysql:host=127.0.0.1;dbname=mydb;charset=utf8mb4', getenv('DB_USER'), getenv('DB_PASS'), [
  PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION
]);

$stmt = $pdo->prepare('INSERT INTO users (email, password_hash) VALUES (?, ?)');
$stmt->execute([$_POST['email'], password_hash($_POST['password'], PASSWORD_DEFAULT)]);

Practical workflow and troubleshooting notes: use git and a .gitignore for credentials; store secrets in environment variables; enable PHP error display only in development and consult server logs for blank pages; common PHP issues include parse errors, “headers already sent” (output before header()), and DB connection credentials/port errors. Once comfortable, learn a framework (Laravel or similar) to speed development and enforce best practices.