PHP | Ds\Queue::pop() Function

PHP Ds\Queue::pop() Function


Hello folks! welcome back to a new edition of our tutorial on PHP. In this tutorial guide, we are going to be studying about the PHP Ds\Queue::pop() Function.

The PHP Ds\Queue::pop() function removes and returns a value at the front of a queue.

Syntax

Following below is the syntax to use this function -

public mixed Ds\Queue::pop( void )


Parameter Details

This built-in PHP function does not have any parameter.

Return Value

It returns the removed value that was at the front of the queue. This function throws an UnderflowException if empty.

Example

Try out the following example below -

<?php  
   $queue = new \Ds\Queue();  
   $queue->push("Web");  
   $queue->push("Design"); 
   $queue->push("Tutorialz"); 
   $queue->push("Nigeria"); 
  
   echo "The initial queue is: \n"; 
   print_r($queue); 
  
   echo "\n The popped element is:"; 
   print_r($queue->pop()); 
  
   echo "\n The final queue is: \n"; 
   print_r($queue); 
?>


Alright guys! This is where we are going to be rounding up for this tutorial post. In our next tutorial, we are going to be discussing about the PHP Ds\Queue::push() Function.

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