What is the Ds\Set reversed() function in PHP?
The Ds\Set::reversed() function is used to reverse the order of elements in a set. The original set remains unaffected and a reversed copy of the set is created.
Syntax
The Ds\Set::reversed() function can be declared, as is shown in the code snippet below:
Ds\Set public Ds\Set::reversed ( void )
Note: The
Ds\Set::reversed()function does not have any input parameters.
Return value
The Ds\Set::reversed() function returns a reversed copy of the set.
Example
Consider the code snippet below, which demonstrates the use of the Ds\Set::reversed() function:
<?php$s1 = new \Ds\Set([1, 2, 3, 4, 5, 6, 7]);echo("Set before reversed(): \n");print_r($s1);echo("Set after reversed(): \n");print_r($s1->reversed());?>
Explanation
-
Line 3: We declare the set
s1. -
Line 9: We reverse the order of the elements in
s1, usingDs\Set::reversed().
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