The Ds\Queue::capacity() Function in PHP is used to check the current capacity of a Queue instance.
Syntax:
int public Ds\Queue::capacity ( void )
Parameters: This function does not accepts any parameters.
Return Value: This function returns the current capacity of the Queue instance.
Below programs illustrate the Ds\Queue::capacity() function in PHP:
Program 1:
PHP
<?php // Declare new Queue $q = new \Ds\Queue(); // Use capacity() function // to check the current capacityvar_dump($q->capacity()); ?> |
Output:
int(8)
Program 2:
PHP
<?php // Declare new Queue $q = new \Ds\Queue(); echo("Current Capacity is: "); // Use capacity() function // to check the current capacityvar_dump($q->capacity()); echo("Current Capacity is: "); // Use allocate() function to // allocate capacity $q->allocate(5); // Display the allocated vector // capacity var_dump($q->capacity()); // Use allocate() function to // allocate capacity $q->allocate(120); // Display the allocated vector // capacity var_dump($q->capacity()); ?> |
Output:
Current Capacity is: int(8) Current Capacity is: int(8) int(128)
Reference: http://php.net/manual/en/ds-queue.capacity.php
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