| public __construct ( callable $comparer = null ) | ||
| $comparer | callable | callable |
public function __construct(callable $comparer = null)
{
if ($comparer === null) {
$comparer = function ($x, $y) {
return $x > $y ? 1 : ($x < $y ? -1 : 0);
};
}
$this->comparer = $comparer;
}