need guidence in PHP Debug(eclipse platform) for tracing

Hi there
i get php debug(eclipse platform) but i can't work with it very well.
can some body tell me what can i do if i want to trace following code :

<?php
if(isset($_GET['text']))
{
	echo "byby ".$_GET['name'];
}
echo '<form method="GET" action='.$_SERVER['PHP_SELF'].'>';
echo "<input type='text' name='name'>";
echo "<input type='submit' value='send'>";
echo "</form>";
?>

PHP:

my problem is after submitting the form.
plz tell what should i do?(some thing like you must go to run menu and then
...)

thank you all

 

if ( $job == "done" ) {
echo "Please message me next time you have something";
} else {
echo "I am interested in this job, Please Message me.";
}