function argument

Hello, what kind of argument is there in this function ? I don't understand PhingFile...
thanks


public function setFile(PhingFile $file) {
$this->file = $file;
}

Its a typehint. It will only accept objects of datatype PhingFile into the function arguments.

what you mean by object of datatype ?

what you mean by object of datatype ?


$thatObject->setFile(new PhingFile());