How do I use single quotes inside single quotes?

Question

Can anyone explain how to make this code work?

echo \'
Welcome 
\'         


        

Answer 1

Variable expansion doesn't work inside of single quotes. You can do either:

echo "<div id=\"panel1-under\">Welcome {$_SESSION['username']}</div>";

or

echo '<div id="panel1-under">Welcome ' . $_SESSION['username'] . '</div>';