> It will be an accident > if you get the results you are expecting. I agree that the operation is illogical, I must disagree about accidents. In PHP that operation will mean assign to the new $a variable the value returned from the other $a variable before the increment. There is no mystery here, imho. Regards _________________________________________________________________ Windows Live: Keep your friends up to date with what you do online. http://www.microsoft.com/middleeast/windows/windowslive/see-it-in-action/social-network-basics.aspx?ocid=PID23461::T:WLMTAGL:ON:WL:en-xm:SI_SB_1:092010