Loading an external PHP file with an internal PHP include function by using jQuery's 'load()'

Question 1

PHP can be run before jQuery grabs the content... Here is what I setup and tested...

test.html

<!DOCTYPE HTML>
<html>
    <head>
        <script type="text/JavaScript" src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
    </head>

    <body>
        <div id="feeds"><b>45</b> feeds found.</div>
        <script type="text/JavaScript">
            $("#feeds").load("go.php");
        </script>
    </body>
</html>

go.php

<?php
    echo 'Hi';
?>

And the result is that #feeds .innerHTML is "Hi"... I would love more information/code in replicating the situation. It might help to take a peek at the jQuery load API documentation.

Question 2

As @joseph told its correct and helped me, but in mycase i wanted to hide the content of the External Php file,
Below is my code changes which had helped me !

<!DOCTYPE HTML>
<html>
    <head>
        <script type="text/JavaScript" src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
    </head>

    <body>
    <b>Db file result</b>
        <div id="feeds" hidden=""></div>
        <script type="text/JavaScript">
            $("#feeds").load("db.php");
        </script>
    </body>
</html>

My Php file had database connection so i had to hide it, db.php

<?php

session_start();

$db = pg_connect("host=ec2-xxx-x0-xxx-xx.compute-1.amazonaws.com port=5432 dbname=dxxxxxxxxx user=vxxxxxxxxxx password=1xxxxxxxxxxxxxxxxxxxxxxxxxxxxd");
 pg_select($db, 'post_log', $_POST);


 $query=pg_query("(SELECT id,name, FROM organization WHERE is_active = 'true' AND account_token = '".$_SESSION['account_token']."');


 $json=array();
while ($student = pg_fetch_array($query)) {
    $json[$student["is_user"]."-".$student["id"]] = $student["name"]."-".$student['pan'];
}

$textval = json_encode($json);
$foo = "var peoplenames=" . $textval;

file_put_contents('autocomplete-Files/'.$_SESSION['account_token'].'.js', $foo);

echo "<script>location='filename.php'</script>";


?>