What Will Be The Output Of The Following Php Codep Pre Langphp #658

What will be the output of the following PHP code?</p> <pre><code class="language-php" line="1"> <?php function a() { function b() { echo 'I am b'; } echo 'I am a'; } b(); a(); ?> </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 Functions - PHP Functions - Quiz No.1.

 <?php function a() { function b() { echo 'I am b'; } echo 'I am a'; } b(); a(); ?>