Hello, ++PHP

A .ppphp file is a PHP file with extra compile-time syntax. It keeps the normal <?php opening tag, and a file that uses no extensions builds to byte-identical PHP.

On the right: an editable source file. Press Run to compile and execute it, and the program output appears below the editor:

echo "Hello, ++PHP!";

Try changing the message and running it again. Build PHP shows the generated PHP instead, and Check validates without emitting. Use the arrows above to move through the lessons.