Online PHP editor | refs for ei64b

<?php function max_by($collection, $property) { $maxElement = $collection[0]; for ($i=0; $i < sizeof($collection); $i++) { if ($collection[$i]->$property > $maxElement->$property) { $maxElement = $collection[$i]; } } return $maxElement; } class A { function __construct($u,$v) { $this->u = $u; $this->v = $v; } } $array = [ new A(1,5), new A(2,2), new A(3,1) ]; $a = max_by($array, 'u'); $b = max_by($array, 'v'); var_dump($a, $b);