Re: What does &var mean ?

Thanks, you guys rock! :) Girish ----- Original Message ----- From: "Roberto Ramírez" <al778510@mail.mty.itesm.mx> To: "Girish Nath" <girishn@btinternet.com> Sent: Thursday, November 22, 2001 4:10 PM Subject: RE: [PHP] What does &var mean ? The use of the & means that its passed by reference. That its equal to the memory address of where the variable is stored &$variable its often used to modify the value of a that variable within a function. for example: <?php $variable = 3; echo $variable; #will print 3 function checkit(&$x){ $x = 5; #this will modify the value of $variable. } checkit($variable); echo $variable; #will print 5 ?> ________________________________________________ PROSSES, Roberto Ramírez. Tel-Fax. 8115 3197 y 99 Puerto No. 3425 Col. Riberas del Río CP. 67160 Guadalupe, Nuevo León. México. Visítanos aquí: http://www.prosses.com <http://www.prosses.com> Correo electrónico: roberto@prosses.com <mailto:roberto@prosses.com> -----Mensaje original----- De: Girish Nath [mailto:girishn@btinternet.com] Enviado el: Jueves, 22 de Noviembre de 2001 09:43 a.m. Para: php-general@lists.php.net Asunto: [PHP] What does &var mean ? Hi I've been looking at some classes an have come across this notation for example : function remove(&$productid) { /* this function will remove a given product from the cart */ if (isset($productid)) { unset($this->items[$productid]); } } What does the "&" (ampersand) before the variable name mean ? Thanks Girish -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: php-general-unsubscribe@lists.php.net For additional commands, e-mail: php-general-help@lists.php.net To contact the list administrators, e-mail: php-list-admin@lists.php.net