Syntax:void public DsSet::reverse (void)
Parameters: This function takes no parameters.Return Value:This function does not return any value. It reverses the order of the elements in the actual Set instance.The following programs illustrate the Ds / Set::reverse()function:Program 1:
// Declaring a new set $set = new DsSet ([ "10" , "20" , "30" ]);
// Show the initial Set element echo "Initial Set:" ; var_dump ( $set );
// Reverse dialing $set -> reverse();
// Print an inverted set echo "Reversed Set is:" ; var_dump ( $set );
?> Exit:Initial Set: object (DsSet) # 1 (3) {[0] = > string (2) "10" [1] = > string (2) "20" [2] = > string (2) "30"} Reversed Set is: object (DsSet) # 1 (3) {[0] = > string (2) "30" [1] = > string (2) "20" [2] = > string (2) "10"} Program 2:
// Declare a new set $set = new DsSet ([ "Geeks" , "for" , "Keegs" ]);
// Show the initial Set element echo "Initial Set:" ; var_dump ( $set );
// Reverse dialing $set -> reverse();
// Print an inverted set echo "Reversed Set is:" ; var_dump ( $set );
?> Exit:Initial Set: object (DsSet) # 1 (3) {[0] = > string (5) "Geeks" [1] = > string (3) "for" [2] = > string (5) "Keegs"} Reversed Set is: object (DsSet) # 1 (3) {[0] = > string (5) "Keegs" [1] = > string (3) "for" [2] = > string (5) "Geeks"} Link: http://php.net/manual/en/ds-set.reverse.php
