Learn php

Now we will start learning php:

at first you will use the php start tag <?php

then write your codes, suppose:   echo "This is my firt line of code!";

then close the php tag by ?>

If you run it in server then we will get the following output:

 This is my firt line of code!

so the code is here:

<?php

  echo "This is my firt line of code!";

?>