Adding values to php variables is simple as the following examples shows

<?php
$name = "Bobby";
$age = "30";
?>

The example code above will add the value Bobby to the variable $name and 30 to the variable age. You can print the value of the variable out to the browser by using the echo statement as follows.

<?php
echo $bobby;
?>

Further to this we could add this html to a page.

Hi my name is <?php echo $name;?> and my age is <?php echo $age;?>

This will print out Hi my name is Bobby and my age is 30