PHP | DsDeque reversed() Function

PHP | Ds\Vector reverse() Function

Last Updated : 22 Aug, 2019

The Ds\Vector::reverse() function is an inbuilt function in PHP which is used to reverse the vector elements in-place. Syntax:

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

<?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:

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
)

Program 2:

php

<?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:

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
)

Reference: https://www.php.net/manual/en/ds-vector.reverse.php

PHP | DsDeque reversed() Function

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