The Ds\Sequence::sort() function is an inbuilt function in PHP that is used to sort the sequence element in the same place.
Syntax:
void abstract public Ds\Sequence::sort ([ callable $comparator ] )
Parameters: This function accepts a single parameter $comparator which is used to hold the comparison function. The comparison function returns an integer value less than, greater than, or equal to zero.
Return value: This function does not return any values. Below programs illustrate the Ds\Sequence::sort() function in PHP:
Program 1:
php
<?php // Create new sequence$seq = new \Ds\Vector([2, 4, 1, 9, 6, 5, 12, 9]);// Use sort() function to sort// the sequence element$seq->sort();print_r($seq);?> |
Output:
Ds\Vector Object
(
[0] => 1
[1] => 2
[2] => 4
[3] => 5
[4] => 6
[5] => 9
[6] => 9
[7] => 12
)
Program 2:
php
<?php // Create new sequence$seq = new \Ds\Vector([2, 4, 1, 9, 6, 5, 12, 9]);// Use sort() function to sort// the sequence element$seq->sort(function($x, $y) { return $y <=> $x;});print_r($seq);?> |
Output:
Ds\Vector Object
(
[0] => 12
[1] => 9
[2] => 9
[3] => 6
[4] => 5
[5] => 4
[6] => 2
[7] => 1
)
Reference: http://php.net/manual/en/ds-sequence.sort.php
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