getting variable from link and changing it to lower_case

[dannybrazil]

hello

i know its simple but i forgot how to do that

i have retrived var' from a link :

www...........php?city=LA

 

$city_name=$_GET['city'];

 

how can i make another var' that will change it to lower case (i need it with capital letter also) so what would be the code for :

$city_name_low= ?

 

thanks

[dannybrazil]

got it

 

thanks