Re: Using a HTML button

PHP is a server-side language (i.e. Perl when used with mod_perl), not a client-side language (i.e. JavaScript). All of the processing is done on the server BEFORE it is sent to the user. Therefore, you can't call a PHP function directly from a web page after the user has received it, since all of the processing has already been done. J Morten Nielsen wrote: > Hi, > > I am rather new to PHP so I hope somebody can help me. > > I have a normal button (HTML code). Then I have made a function > > function multiply($X) > { > return 2*$X; > } > > The button has an OnClick, which calls my function. > <INPUT TYPE="BUTTON" name="HH" value="Mul" onClick="<? > $XX=multiply(5);?>" > > > > I then writes $X to the screen. > > <?php echo $X ?> > > The problem is I dont even have to press the button. When the page loads > it already has calculated 2*$X. Why is that. I would like to only call my > function when I press my button. > > Please help > Morten