(PECL ds >= 1.0.0)
Ds\Vector::sort — Sorts the vector in-place
Sorts the vector in-place, using an optional comparator
function.
comparator
The comparison function must return an integer less than, equal to, or greater than zero if the first argument is considered to be respectively less than, equal to, or greater than the second.
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.
No value is returned.
Example #1 Ds\Vector::sort() example
<?php
$vector = new \Ds\Vector([4, 5, 1, 3, 2]);
$vector->sort();
print_r($vector);
?>
The above example will output something similar to:
Ds\Vector Object ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 [4] => 5 )
Example #2 Ds\Vector::sort() example using a comparator
<?php
$vector = new \Ds\Vector([4, 5, 1, 3, 2]);
$vector->sort(function($a, $b) {
return $b <=> $a;
});
print_r($vector);
?>
The above example will output something similar to:
Ds\Vector Object ( [0] => 5 [1] => 4 [2] => 3 [3] => 2 [4] => 1 )