PHP - Queue Class Functions

The Queue is a “first-in, first-out” or “FIFO” collection that can only allow access to value at the front of a queue and iterate in that order destructively.

Class Synopsis

Ds\Queue implements Ds\Collection {
   /* Constants */
   const int MIN_CAPACITY = 8 ;

   /* Methods */
   public void allocate( int $capacity )
   public int capacity( void )
   public void clear( void )
   public Ds\Queue copy( void )
   public bool isEmpty( void )
   public mixed peek( void )
   public mixed pop( void )
   public void push([ mixed $...values ] )
   public array toArray( void )
}

Predefined Constants

Ds\Queue::MIN_CAPACITY

Sr.No	Functions & Description
1	Ds\Queue::allocate() Function This function can allocate enough memory for the required capacity.
2	Ds\Queue::capacity() Function This function can return the current capacity.
3	Ds\Queue::clear() Function This function can remove all values from a queue.
4	Ds\Queue::__construct() Function This function can create a new instance.
5	Ds\Queue::copy() Function This function can return the shallow copy of a queue.
6	Ds\Queue::count() Function This unction can be used to get the count of elements present in a queue.
7	Ds\Queue::isEmpty() Function This function can return whether the queue is empty.
8	Ds\Queue::jsonSerialize() Function This function can return a representation that can be converted to JSON.
9	Ds\Queue::peek() Function This function can return a value at the front of a queue.
10	Ds\Queue::pop() Function This function can remove and return a value at the front of a queue.
11	Ds\Queue::push() Function This function can push the values into a queue.
12	Ds\Queue::toArray() Function This function can convert the queue to an array.

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