Mvc\Model::find

// How many robots are there?
 $robots = Robots::find();
 echo 'There are ', count($robots), "\n";

 // How many mechanical robots are there?
 $robots = Robots::find("type='mechanical'");
 echo 'There are ', count($robots), "\n";

 // Get and print virtual robots ordered by name
 $robots = Robots::find(["type='virtual'", 'order' => 'name']);
 foreach ($robots as $robot) {
 echo $robot->name, "\n";
 }

 // Get first 100 virtual robots ordered by name
 $robots = Robots::find(["type='virtual'", 'order' => 'name', 'limit' => 100]);
 foreach ($robots as $robot) {
 echo $robot->name, "\n";
 }