How can I get data from a database to my iOS app? : <p><strong>I've designed my app in Xcode</strong></p>

<p>But , it doesn't have any data  ! And I want to get data from a database .</p>

<p>I don't know where to start ? And what should I use ?</p>

<pre><code>*php , sql , json ?*
</code></pre>
