Re: Cant get maths functions to work in class file

echo() can interpolate a variable, but not an expression such as "$this->Unitprice*2" replace: echo " price * two is $this->Unitprice*2<BR>"; by: $bytwo = $this->Unitprice*2 ; echo " price * two is $bytwo<BR>"; HTH Ignatius _________________________ ----- Original Message ----- From: "Mark Harrington" <elite_electronics@ntlworld.com> To: <php-windows@lists.php.net> Sent: Wednesday, September 03, 2003 4:54 PM Subject: [PHP-WIN] Cant get maths functions to work in class file > I have designed a class that multiplies one of the varibles by two but when > i pass the values to the contructor i cant get the answer out any ideas > > Here is the full script "If you can recognise the problem can you explain > why its wrong and why its not working "Ps learning the langauge " > > The Class File > > class purchase { > > var $PartNumber; > var $Description; > var $Unitprice ; > > > // this is the constuctor > > function purchase($partnumber,$desc,$price) > { > $this->PartNumber = $partnumber; > $this->Description =$desc; > $this->Unitprice =$price; > echo "Object created partNumber = $this->PartNumber <br>"; > echo " This Objects Description = $this->Description <br>"; > echo " This Objects Price is $this->Unitprice <BR>"; > //this doesnt work why ?? > echo " price * two is $this->Unitprice*2<BR>"; > }// end constructor > > > } > > > $myObject = new purchase(1,"Speaker",23.00); > > ?> > > > mark@harrington.force9.co.uk > > -- > PHP Windows Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > >