[zokemon]

hence, saying

PHP Code:

setstring this.test,a,s,d,f;
triggeraction 0,0,serverside,blah,#s(this.test); 


simply replaces the #s(this.test) with a,s,d,f therefore making it read

PHP Code:

triggeraction 0,0,serverside,blah,a,s,d,f;