public function defaultValueStringProvider()
{
return [['123', '123'], ['12.3', '12.300000000000001'], ['true', 'true'], ['false', 'false'], ['null', 'NULL'], ['[]', "array (\n)"], ['[1, 2, 3]', "array (\n 0 => 1,\n 1 => 2,\n 2 => 3,\n)"], ['"foo"', "'foo'"]];
}