[PHP] SQ: what does the sign do

Hi all, maybe this is a stupid Q, but lately I'm diving into OOP. Below you can see a piece of example code from the manual. my Q: what does the sign do in functioncb_modify( $item,$key) ?? I noticed this sign is used more, so it should be handy, but hwat does it do? thx Wilbert

Re: [PHP] SQ: what does the sign do

] SQ: what does the sign do Hi all, maybe this is a stupid Q, but lately I'm diving into OOP. Below you can see a piece of example code from the manual. my Q: what does the sign do in functioncb_modify( $item,$key) ?? I noticed this sign is used more, so it should be handy, but hwat does it do