(PECL ds >= 1.0.0)
Ds\Sequence::sort — Sorts the sequence in-place
Sorts the sequence in-place, using an optional comparator function.
comparator在第一個(gè)參數小于，等于或大于第二個(gè)參數時(shí)，該比較函數必須相應地返回一個(gè)小于，等于或大于 0 的整數。
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.
沒(méi)有返回值。
示例 #1 Ds\Sequence::sort() example
<?php
$sequence = new \Ds\Vector([4, 5, 1, 3, 2]);
$sequence->sort();
print_r($sequence);
?>
以上例程的輸出類(lèi)似于：
Ds\Vector Object
(
[0] => 1
[1] => 2
[2] => 3
[3] => 4
[4] => 5
)
示例 #2 Ds\Sequence::sort() example using a comparator
<?php
$sequence = new \Ds\Vector([4, 5, 1, 3, 2]);
$sequence->sort(function($a, $b) {
return $b <=> $a;
});
print_r($sequence);
?>
以上例程的輸出類(lèi)似于：
Ds\Vector Object
(
[0] => 5
[1] => 4
[2] => 3
[3] => 2
[4] => 1
)