What Will Be The Output Of The Following Php Code Say Your #244

What will be the output of the following PHP code? (Say your previous session username was nachi.)</p> <pre><code class="language-php" line="1"> unset($_SESSION['username']); printf("Username now set to: %s", $_SESSION['username']); </code></pre>

This multiple choice question (MCQ) is related to the book/course gs gs107 PHP: Hypertext Preprocessor. It can also be found in gs gs107 PHP File and Session Handling - PHP Session Handling - Quiz No.2.

 unset($_SESSION['username']); printf("Username now set to: %s", $_SESSION['username']);