<p>Making an application live majorly depends on the type of hosting you are having along with the method to access you are provided for that hosting.</p><p>I am assuming that you have shared hosting with Cpanel.</p><p>Please go through the below steps to make your PHP application live.</p><h2>Steps:</h2><ul><li>Make a .zip file of your application</li><li>Login into your server (live server with the credentials you are provided by the hosting vendor)</li><li>Once you got into the panel, find file manager.</li><li>Inside file manager search for public_html (this is the base directory, like htdocs in XAMPP)</li><li>Upload your .zip file in public_html</li><li>Extract it in here.</li></ul><p>Your code files are live now.</p><h2>Creating a Database</h2><p>If your application is static then the above steps should be enough for making it live but if you have a database in action then you also have to create and connect a database too, to the application.</p><p>Below are the steps to create a DB in cPanel</p><ul><li>Search for MySQL database wizard</li><li>Name your database</li><li>Create a user, password, and privileges</li></ul><p>Connect your Database to your application through config or how so ever you have designed to it.</p><p>For any concerns and doubts feel free to ask in comment section.</p>

Making an application live majorly depends on the type of hosting you are having along with the method to access you are provided for that hosting.