PHP | Ds\Stack allocate() Function
Last Updated :
10 May, 2021
The Ds\Stack::allocate() function is an inbuilt function in PHP which is used to allocate memory for required capacity. This function allocates sufficient memory for a given capacity of an instance of Stack class.
Syntax:
void Ds\Stack::allocate( $capacity )
Parameters: This function accepts a single parameter $capacity which is an integral value denoting the number of values for which capacity is needed to allocate.
Return Value: This function does not return any value.
Below programs illustrate the Ds\Stack::allocate() function in PHP:
Program 1:
php
<?php
$stack = new \Ds\Stack();
echo ( "Allocated Space is: " );
var_dump( $stack ->capacity());
echo ( "Allocated space is: " );
$stack ->allocate(50);
var_dump( $stack ->capacity());
?>
|
Output:
Allocated Space is: int(8)
Allocated space is: int(50)
Program 2:
php
<?php
$stack = new \Ds\Stack();
echo ( "Allocated Space is: " );
var_dump( $stack ->capacity());
echo ( "Allocated space is: " );
$stack ->allocate(5);
var_dump( $stack ->capacity());
echo ( "Allocated space is: " );
$stack ->allocate(120);
var_dump( $stack ->capacity());
?>
|
Output:
Allocated Space is: int(8)
Allocated space is: int(8)
Allocated space is: int(120)
Reference: https://www.php.net/manual/en/ds-stack.allocate.php
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