About

Implementation of Stack, Queue and Set data structure using php.

Stack Class Available methods

• isFull() -- return true if stack is Full
• isEmpty() -- return true if stack is Empty
• push($value) - insert item to stack
• pop() - remove item to stack
• getStack() - get the stack
• peak() - return top item of the stack

How to use?

try {
    $stack = new Stack();
    print_r( $stack->push( 1 )->push( 2 )->push( 3 )->pop()->push( 4 )->getStack() );
} catch ( \Throwable $th ) {
    echo $th->getMessage();
}

Method chaining is available for push and pop

You can define Stack size. For example: new Stack(10). Default size is 5

Queue Class Available methods

• isFull() -- return true if queue is Full
• isEmpty() -- return true if queue is Empty
• enqueue($value) - insert item to queue
• dequeue() - remove item to queue
• getQueue() - get the queue
• peak() - return top item of the queue
• output() - Get details of the queue

How to use?

try {
    $queue = new Queue();
    print_r( $queue->enqueue( 1 )->dequeue()->enqueue( 2 )->enqueue( 3 )->enqueue( 4 )->enqueue( 5 )->getQueue() );
    $queue->dequeue()->output();
} catch ( \Throwable $th ) {
    print_r( $th->getMessage() );
}

Method chaining is available for enqueue and dequeue

You can define Queue size. For example: new Queue(10). Default size is 5

Set Class Available methods

• add($value) - insert item to Set
• remove($value) - remove item to Set
• isExists($value) - if value exists in the Set
• getSet() - get the Set array
• getSize() - get the Size of the Set
• max() - Get the maximum value of the Set
• min() - Get the minimum value of the Set

How to use?

try {
    $set = new Set();
    print_r( $set->add( 5 )->add( 6 )->add( 5 )->remove( 6 )->add( 9 )->getSet() );
    echo "Max value: " . $set->max() . "\n";
    echo "Set size: " . $set->getSize() . "\n";
} catch ( \Throwable $th ) {
    echo $th->getMessage();
}

Method chaining is available for add and remove

Note: Example Code is given in index.php