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 // 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 // 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
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