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
$stack = new \Ds\Stack();
$stack->push("Welcome");
$stack->push("to");
$stack->push("GfG");
print_r($stack);
$stack->clear();
print_r($stack);
?>
|
Output:
Ds\Stack Object
(
[0] => GfG
[1] => to
[2] => Welcome
)
Ds\Stack Object
(
)
Program 2:
PHP
<?php
$stack = new \Ds\Stack();
$stack->push("Welcome");
$stack->push("to");
$stack->push("GfG");
$stack->push(10);
$stack->push(5.5);
print_r($stack);
$stack->clear();
print_r($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
Last Updated :
20 Jan, 2021
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