PHP | Ds\Deque clear() Function Last Updated : 14 Aug, 2019 Comments Improve Suggest changes Like Article Like Report The Ds\Deque::clear() function is an inbuilt function in PHP which is used to clear the Deque by removing all elements from the Deque. Syntax: public Ds\Deque::clear( void ) : void Parameters: This function does not accepts any parameter. Return Value: This function does not return any Value. Below programs illustrate the Ds\Deque::clear() function in PHP: Program 1: PHP <?php // Declare deque of default size $deck = new \Ds\Deque([1, 2, 3, 4, 5, 6]); echo("Elements in the deck:\n"); // Display the Deque elements print_r($deck); // Use clear() function to clear the deque $deck->clear(); // Display the deque print_r($deck); ?> Output: Elements in the deck: Ds\Deque Object ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 [4] => 5 [5] => 6 ) Ds\Deque Object ( ) Program 2: PHP <?php // Declare deque of default size $deck = new \Ds\Deque(["geeks", "for", "geeks"]); echo("Elements in the Deque\n"); // Display the Deque elements print_r($deck); // Use clear() function to clear the deque $deck->clear(); echo("Alter clearing the elements\n"); // Display the deque print_r($deck); ?> Output: Elements in the Deque Ds\Deque Object ( [0] => geeks [1] => for [2] => geeks ) Alter clearing the elements Ds\Deque Object ( ) Reference: http://php.net/manual/en/ds-deque.clear.php Comment More infoAdvertise with us Next Article PHP | Ds\Deque clear() Function B barykrg Follow Improve Article Tags : Web Technologies PHP PHP-function PHP-ds_map Similar Reads PHP | DsDeque clear() Function The Ds\Deque::clear() function is an inbuilt function in PHP which is used to clear the Deque by removing all elements from the Deque. Syntax: public Ds\Deque::clear( void ) : void Parameters: This function does not accepts any parameter. Return Value: This function does not return any Value. Below 2 min read PHP DsQueue clear() Function The Ds\Queue::clear() Function in PHP is used to clear all of the elements from a Queue instance. This function just clears the instance without deleting it. Syntax: void public Ds\Queue::clear ( void ) Parameters: This function does not accepts any parameters. Return Value: This function does not r 1 min read PHP | DsSet clear() Function The Ds\Set::clear() function is an inbuilt function in PHP which is used to remove all values from the set. Syntax: void public Ds\Set::clear( void ) Parameters: This function does not accept any parameter. Return value: This function does not return any value. Below programs illustrate the Ds\Set:: 1 min read PHP | DsPair clear() Function The Ds\Pair::clear() function is an inbuilt function in PHP which is used to remove all values from the pair. Syntax: void Ds\Pair::clear( void ) Parameters: This function does not accept any parameters. Return Value: This function does not return any value. Below programs illustrate the Ds\Pair::cl 1 min read PHP | DsStack clear() Function The Ds\Stack::clear() function of PHP is used to remove all elements from a Stack and clear it. This function simply removes all of the elements from the Stack but not completely deletes it. It just empties it. Syntax: void public Ds\Stack::clear ( void ) Parameters: This function does not accept an 2 min read Like