PHP | Ds\Stack pop() Function
Last Updated :
18 Jan, 2021
The Ds\Stack::pop() function of PHP is used to remove the element present at the top of the Stack instance. This function also returns the top element of the stack after removing it.
Syntax:
mixed public Ds\Stack::pop ( void )
Parameters: This function does not accept any parameters.
Return Value mixed This function returns the element present at the top of the Stack and removes it from the stack.
Below programs illustrate the Ds\Stack::pop() function in PHP:
Program 1:
PHP
<?php
$stack = new \Ds\Stack();
$stack ->push( "Welcome" );
$stack ->push( "to" );
$stack ->push( "GfG" );
print_r( $stack );
print_r( $stack ->pop());
print_r( $stack );
?>
|
Output:
Ds\Stack Object
(
[0] => GfG
[1] => to
[2] => Welcome
)
GfG
Ds\Stack Object
(
[0] => to
[1] => Welcome
)
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 );
print_r( $stack ->pop());
print_r( $stack );
?>
|
Output:
Ds\Stack Object
(
[0] => 5.5
[1] => 10
[2] => GfG
[3] => to
[4] => Welcome
)
5.5
Ds\Stack Object
(
[0] => 10
[1] => GfG
[2] => to
[3] => Welcome
)
Reference: http://php.net/manual/en/ds-stack.pop.php
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