Making MySQL queries using javascript function.
<p>I'm trying to create PHP function that I will be able to use in javascript code.</p>

<pre><code>&lt;!DOCTYPE html&gt;
&lt;?php
include 'pdo_connect.php';
function pleaseWork($query) {
    return dataQuery($query)-&gt;fetchAll();
}
function makeQuery($query)
{
    $work = pleaseWork($query);
    $json = json_encode($work);
}
?&gt;
&lt;html&gt;

&lt;head&gt;
&lt;script src="//ajax.googleapis.com/ajax/libs/jquery/2.0.0/jquery.min.js"&gt;&lt;/script&gt;
&lt;title&gt;Admin check&lt;/title&gt;
&lt;meta charset="UTF-8"&gt;
&lt;/head&gt;

&lt;body&gt;
&lt;script type='text/javascript'&gt; 
&lt;?php makeQuery("SELECT * FROM `grupy`");?&gt;

var jArray = &lt;?= $json ?&gt;;
console.log(jArray);
&lt;/script&gt;
</code></pre>

<p></p>

<p></p>

<p>Of course it doesn't work because code in JS block doesn't know anything about variables from beginning of file. How do I do that? I never used AJAX or anything so I don't know what to do. </p>