Si vede che le guide che hai letto erano veramente pessime. Segui il consiglio, fai riferimento al manuale ufficiale:


http://www.php.net/manual/en/tutorial.requirements.php
Just create your .php files, put them in your web directory
http://www.php.net/manual/en/languag...ax.phpmode.php
There are four different pairs of opening and closing tags which can be used in php. Two of those, <?php ?> and <script language="php"> </script>, are always available.