}
public function age()
{
return $this->age;
}
}
class UserCollection
{
protected $users;
public function __construct(array $users)
{
$this->users = $users;
}
public function sortBy($column)
{
usort($this->users, function ($userOne, $userTwo) use($column) {
return $userOne->{$column}() <=> $userTwo->{$column}();
});
}
}
$collection = new UserCollection([new User('Jeff', 30), new User('Taylor', 29), new User('Jane', 50), new User('Susie', 10)]);
$collection->sortBy('age');
var_dump($collection);
$games = ['Mass Effect', 'Super Mario Bros', 'Zelda', 'Fallout', 'Metal Gear'];
// sort($games); // alphabat sort
usort($games, function ($a, $b) {
var_dump('a: ' . $a . ', b: ' . $b);
// return $b <=> $a; // -1, 0, 1
return strlen($a) <=> strlen($b);
});
var_dump($games);
public function name()
{
return $this->name;
}
public function age()
{
return $this->age;
}
}
class UserCollection
{
protected $users;
public function __construct(array $users)
{
$this->users = $users;
}
public function users()
{
return $this->users;
}
public function sortBy($method)
{
usort($this->users, function ($userOne, $userTwo) use($method) {
return $userOne->{$method}() <=> $userTwo->{$method}();
});
}
}
$collection = new UserCollection([new User('jabed', 126), new User('bangali', 36), new User('hasan', 46), new User('babu', 56), new User('md', 66)]);
//$collection->sortBy('age');
$collection->sortBy('name');
var_dump($collection->users());
