public function analyze()
{
// avoid initialization build on function call. Use directly values or outsource them.
// $x = explode(',', 'a,b,c,d,e,f') => array('a', 'b', 'c',...)
$this->atomFunctionIs(array('\\explode', '\\split'))->outIs('ARGUMENTS')->noAtomInside(array('Variable', 'Functioncall'))->back('first');
$this->prepareQuery();
}