[fowlplay4]

It's gettextwidth.

PHP Code:

//#CLIENTSIDE
function onCreated() {
  foo = "some text here"; 
  len = gettextwidth(1, "Verdana", "b", foo);
  len2 = gettextwidth(1, "Verdana", "b", "some text here");
  echo(len SPC len2); // echos "184 184"
}