The Ds\Deque::capacity() function is an inbuilt function in PHP which is used to get the current capacity of the Deque.
Syntax:
public Ds\Deque::capacity( void ) : int
Parameters: This function does not accepts any parameter.
Return Value: This function returns the current capacity of the Deque.
Below programs illustrate the Ds\Deque::capacity() function in PHP:
Program 1:
<?php // Allocating deque of default size $deck = new \Ds\Deque(); echo("Default size of Deque: "); // Display the current capacity of the deque var_dump($deck->capacity()); // Allocating space for 50 values to the deque $deck->allocate(50); echo("Allocated size of Deque: "); // Display the current capacity of the deque var_dump($deck->capacity()); ?> |
Default size of Deque: int(8) Allocated size of Deque: int(64)
Program 2:
<?php // Declare Deque $deck = new \Ds\Deque([1, 2, 3, 4, 5, 6]); echo("Elements of Deque\n"); // Display the Deque elements var_dump($deck); echo("\nCapacity of Deque: "); // Display the capacity of Deque var_dump($deck->capacity()); ?> |
Elements of Deque
object(Ds\Deque)#1 (6) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
int(3)
[3]=>
int(4)
[4]=>
int(5)
[5]=>
int(6)
}
Capacity of Deque: int(8)
Reference: http://php.net/manual/en/ds-deque.capacity.php
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