PHP | Ds\Vector count() Function

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The Ds\Vector::count() function is an inbuilt function in PHP which is used to count the number of elements in the vector.

Syntax:

int public Ds\Vector::count( void )

Parameters: This function does not accepts any parameter.

Return Value: This function returns the number of elements in the vector.

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

Program 1:

<?php 
  
// Declare a vector  
$arr1 = new \Ds\Vector([1, 2, 3, 4, 5, 6, 7, 8]); 
  
echo("Vector elements\n"); 
  
// Display the vector elements 
print_r($arr1); 
  
echo("Count vector elements: "); 
  
// Use count() function to count  
// elements in the vector 
echo(count($arr1)); 
  
?> 

Output:

Vector elements
Ds\Vector Object
(
    [0] => 1
    [1] => 2
    [2] => 3
    [3] => 4
    [4] => 5
    [5] => 6
    [6] => 7
    [7] => 8
)
Count vector elements: 8

Program 2:

<?php 
  
// Declare a vector  
$arr1 = new \Ds\Vector(["zambiatek", "for", "zambiatek"]); 
  
echo("Vector elements\n"); 
  
// Display the vector elements 
print_r($arr1); 
  
echo("Count vector elements: "); 
  
// Use count() function to count  
// elements in the vector 
echo(count($arr1)); 
  
?> 

Output:

Vector elements
Ds\Vector Object
(
    [0] => zambiatek
    [1] => for
    [2] => zambiatek
)
Count vector elements: 3

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

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