PHP | DsDeque clear() Function

PHP | Ds\Stack clear() Function

Last Updated : 20 Jan, 2021

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 any parameters.

Return Value: This function does not return any value.

Below programs illustrate the Ds\Stack::clear() function:

Program 1:

PHP

<?php

// PHP program to illustrate the 
// Ds\stack::clear() function 

// Create a Stack instance
$stack = new \Ds\Stack();

// Pushing elements to Stack
$stack->push("Welcome");
$stack->push("to");
$stack->push("GfG");

// Print the stack
print_r($stack);

// clear the stack
$stack->clear();

// Print the stack again
print_r($stack);

?>

Output:

Ds\Stack Object
(
    [0] => GfG
    [1] => to
    [2] => Welcome
)

Ds\Stack Object
(

)

Program 2:

PHP

<?php

// PHP program to illustrate the 
// Ds\stack::clear() function 

// Create a Stack instance
$stack = new \Ds\Stack();

// Pushing Mixed value elements to Stack
$stack->push("Welcome");
$stack->push("to");
$stack->push("GfG");
$stack->push(10);
$stack->push(5.5);

// Print the stack
print_r($stack);

// clear the stack
$stack->clear();

// Print the stack again
print_r($stack);

?>

Output:

Ds\Stack Object
(
    [0] => 5.5
    [1] => 10
    [2] => GfG
    [3] => to
    [4] => Welcome
)

Ds\Stack Object
(

)

Reference: http://php.net/manual/en/ds-stack.clear.php

PHP | DsDeque clear() Function

gopaldave

Improve

Article Tags :

Similar Reads

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::

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

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

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

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

PHP | DsVector clear() Function

The Ds\Vector::clear() function is an inbuilt function in PHP which is used to clear the vector elements by removing all the elements from the vector. Syntax: void public Ds\Vector::clear( void ) Parameters: This function does not accept any parameter. Return Value: This function does not return any

PHP | DsCollection clear() Function

The Ds\Collection::clear() function is an inbuilt function in PHP which is used to remove all values from the collection. Syntax: Ds\Collection::clear( void ) Parameters: This function does not accepts any parameters. Return Value: This function does not return any value. Below programs illustrate t

PHP DsSet sort() Function

The Ds\Set::sort() function of DS\Set class in PHP is used to in-place sort the elements of a specified Set instance according to the values. By default, the Set is sorted according to the increasing order of the values. Syntax: void public Ds\Set::sort ([ callable $comparator ] ) Parameters: This f

PHP | DsMap sort() Function

The Ds\Map::sort() function of DS\Map class in PHP is used to in-place sort the elements of a specified Map instance according to the values. By default, the Map is sorted according to the increasing order of the values. Syntax: Ds\Pair public Ds\Map::sort ( int $position ) Parameter: This function

PHP | DsDeque set() Function

The Ds\Deque::set() function is an inbuilt function in PHP which is used to set the value at the given index in the Deque. Syntax: public Ds\Deque::set( $index, $value ) : void Parameters: This function accept two parameters as mentioned above and described below: index: This parameter holds the ind