PHP | Ds\Vector pop() Function

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The Ds\Vector::pop() function is an inbuilt function in PHP which is used to remove the last element of a vector and return it.

Syntax:

mixed public Ds\Vector::pop( void )

Parameters: This function does not accept any parameter.

Return Value: This function returns the last element which removed from the vector.

Below programs illustrate the Ds\Vector::pop() function in PHP:

Program 1:

<?php 
  
// Create new Vector 
$arr1 = new \Ds\Vector([10, 20, 30, 40, 50]); 
  
echo("Original vector elements\n"); 
print_r($arr1); 
  
echo("Last element in vector: "); 
  
// Use pop() function to remove 
// last element from vector 
var_dump($arr1->pop()); 
  
echo("\nVector after removing the last element\n"); 
print_r($arr1); 
  
?> 

Output:

Original vector elements
Ds\Vector Object
(
    [0] => 10
    [1] => 20
    [2] => 30
    [3] => 40
    [4] => 50
)
Last element in vector: int(50)

Vector after removing the last element
Ds\Vector Object
(
    [0] => 10
    [1] => 20
    [2] => 30
    [3] => 40
)

Program 2:

<?php 
  
// Create new Vector 
$arr1 = new \Ds\Vector(["zambiatek", "for", "zambiatek"]); 
  
echo("Original vector elements\n"); 
print_r($arr1); 
  
echo("Last element in vector: "); 
  
// Use pop() function to remove 
// last element from vector 
var_dump($arr1->pop()); 
  
echo("\nVector after removing the last element\n"); 
print_r($arr1); 
  
?> 

Output:

Original vector elements
Ds\Vector Object
(
    [0] => zambiatek
    [1] => for
    [2] => zambiatek
)
Last element in vector: string(5) "zambiatek"

Vector after removing the last element
Ds\Vector Object
(
    [0] => zambiatek
    [1] => for
)

Reference: http://php.net/manual/en/ds-vector.pop.php