The Ds\Vector::sorted() function is an inbuilt function in PHP which is used to sort the elements of the vector by creating a copy of the original vector. This will arrange the vector elements in increasing order using default comparator.
Syntax:
Ds\Vector public Ds\Vector::sorted( $comparator )
Parameters: This function accepts single parameter $comparator which holds the sorting function.
Return Value: This function returns a copy of sorted vector.
Below programs illustrate the Ds\Vector::sorted() function in PHP:
Program 1:
<?php // Declare new Vector $vect = new \Ds\Vector([6, 5, 4, 3, 2, 1]); echo("Original vector\n"); // Display the vector elements var_dump($vect); // Use sorted() function to sort // the copy of vector elements $res = $vect->sorted(); echo("\nSorted elements\n"); // Display the sorted elements var_dump($res); ?> |
Output:
Original vector
object(Ds\Vector)#1 (6) {
[0]=>
int(6)
[1]=>
int(5)
[2]=>
int(4)
[3]=>
int(3)
[4]=>
int(2)
[5]=>
int(1)
}
Sorted elements
object(Ds\Vector)#2 (6) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
int(3)
[3]=>
int(4)
[4]=>
int(5)
[5]=>
int(6)
}
Program 2:
<?php // Declare new Vector $vect = new \Ds\Vector([3, 6, 1, 2, 9, 7]); echo("Original vector\n"); // Display the vector elements var_dump($vect); // Use sorted() function to sort // the copy of vector elements $res = $arr->sorted(function($element1, $element2) { return $element1 <=> $element2; }); echo("\nSorted elements\n"); // Display the sorted elements var_dump($res); ?> |
Output:
Original vector
object(Ds\Vector)#1 (6) {
[0]=>
int(3)
[1]=>
int(6)
[2]=>
int(1)
[3]=>
int(2)
[4]=>
int(9)
[5]=>
int(7)
}
Sorted elements
object(Ds\Vector)#3 (6) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
int(3)
[3]=>
int(6)
[4]=>
int(7)
[5]=>
int(9)
}
Reference: http://php.net/manual/en/ds-vector.sorted.php
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