PHP | Ds\Vector reverse() Function
Last Updated :
22 Aug, 2019
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The Ds\Vector::reverse() function is an inbuilt function in PHP which is used to reverse the vector elements in-place.
Syntax:
php
php
void public Ds\Vector::reverse( void )Parameters: This function does not accepts any parameters. Return Value: This function does not return any value. Below programs illustrate the Ds\Vector::reverse() function in PHP: Program 1:
<?php
// Create new Vector
$arr = new \Ds\Vector([1, 2, 3, 4, 5]);
// Display the elements
print_r($arr);
echo("Vector after reversing\n");
// Use reverse() function to reverse
// the vector elements and display it
$arr->reverse();
print_r($arr);
?>
Output:
Program 2:
Ds\Vector Object
(
[0] => 1
[1] => 2
[2] => 3
[3] => 4
[4] => 5
)
Vector after reversing
Ds\Vector Object
(
[0] => 5
[1] => 4
[2] => 3
[3] => 2
[4] => 1
)
<?php
// Create new Vector
$arr = new \Ds\Vector(["Geeks", "GFG",
"Computer", "Science", "Portal"]);
// Display the elements
print_r($arr);
echo("Vector after reversing\n");
// Use reverse() function to reverse
// the vector elements and display it
$arr->reverse();
print_r($arr);
?>
Output:
Reference: https://www.php.net/manual/en/ds-vector.reverse.php
Ds\Vector Object
(
[0] => Geeks
[1] => GFG
[2] => Computer
[3] => Science
[4] => Portal
)
Vector after reversing
Ds\Vector Object
(
[0] => Portal
[1] => Science
[2] => Computer
[3] => GFG
[4] => Geeks
)
