Ds\Sequence::sorted

(PECL ds >= 1.0.0)

Ds\Sequence::sorted — Returns a sorted copy

abstract public Ds\Sequence::sorted(callable $comparator = ?): Ds\Sequence

Returns a sorted copy, using an optional comparator function.

comparator: La función de comparación debe devolver un entero menor, igual o mayor que cero si el primer argumento se considera que sea respectivamente menor, igual o mayor que el segundo. Observe que antes de PHP 7.0.0 este entero debía estar en el rango de -2147483648 a 2147483647.

callback(mixed $a, mixed $b): int

Precaución
Returning non-integer values from the comparison function, such as float, will result in an internal cast to int of the callback's return value. So values such as 0.99 and 0.1 will both be cast to an integer value of 0, which will compare such values as equal.

Returns a sorted copy of the sequence.

Ejemplo #1 Ds\Sequence::sorted() example

<?php
$sequence = new \Ds\Vector([4, 5, 1, 3, 2]);

print_r($sequence->sorted());
?>

El resultado del ejemplo sería algo similar a:

Ds\Vector Object
(
    [0] => 1
    [1] => 2
    [2] => 3
    [3] => 4
    [4] => 5
)

Ejemplo #2 Ds\Sequence::sorted() example using a comparator

<?php
$sequence = new \Ds\Vector([4, 5, 1, 3, 2]);

$sorted = $sequence->sorted(function($a, $b) {
    return $b <=> $a;
});

print_r($sorted);
?>

El resultado del ejemplo sería algo similar a:

Ds\Vector Object
(
    [0] => 5
    [1] => 4
    [2] => 3
    [3] => 2
    [4] => 1
)

There are no user contributed notes for this page.