PHP | Ds\Map count() Function

The Ds\Map::count() function is an inbuilt function in PHP which is used to count the number of elements present in the Map. It also referred to the size of the Map.

Syntax:

int public Ds\Map::count()

Parameters: This function does not accept any parameter.



Return value: This function returns the number of elements present in the Map.

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

Program 1:

filter_none

edit
close

play_arrow

link
brightness_4
code

<?php 
// PHP program to illustrate the count() 
// function of Ds\map 
  
// Creating a Map 
$map = new \Ds\Map([
    "1" => "Geeks",  
    "2" => "for",
    "3" => "Geeks"
]); 
  
// Display the map elements
print_r($map); 
  
echo "Number of elements present in map: ";
print_r($map->count());
  
?> 

chevron_right


Output:

Ds\Map Object
(
    [0] => Ds\Pair Object
        (
            [key] => 1
            [value] => Geeks
        )

    [1] => Ds\Pair Object
        (
            [key] => 2
            [value] => for
        )

    [2] => Ds\Pair Object
        (
            [key] => 3
            [value] => Geeks
        )

)
Number of elements present in map: 3

Program 2:

filter_none

edit
close

play_arrow

link
brightness_4
code

<?php 
// PHP program to illustrate the count() 
// function of Ds\map 
  
// Creating a Map 
$map = new \Ds\Map(["1" => "10"
            "2" => "20", "3" => 30, "4" => 40]); 
  
// Print map elements
print_r($map); 
  
echo "Number of elements present in map: ";
print_r($map->count());
  
echo "\n";
  
// Creating another Map 
$map = new \Ds\Map([1 => "Welcome"
            2 => "to", 3 => "GeeksforGeeks"]); 
  
// Print map elements
print_r($map); 
  
echo "Number of elements present in map: ";
print_r($map->count());
  
?> 

chevron_right


Output:

Ds\Map Object
(
    [0] => Ds\Pair Object
        (
            [key] => 1
            [value] => 10
        )

    [1] => Ds\Pair Object
        (
            [key] => 2
            [value] => 20
        )

    [2] => Ds\Pair Object
        (
            [key] => 3
            [value] => 30
        )

    [3] => Ds\Pair Object
        (
            [key] => 4
            [value] => 40
        )

)
Number of elements present in map: 4
Ds\Map Object
(
    [0] => Ds\Pair Object
        (
            [key] => 1
            [value] => Welcome
        )

    [1] => Ds\Pair Object
        (
            [key] => 2
            [value] => to
        )

    [2] => Ds\Pair Object
        (
            [key] => 3
            [value] => GeeksforGeeks
        )

)
Number of elements present in map: 3

Reference: https://www.php.net/manual/en/ds-map.count.php



My Personal Notes arrow_drop_up

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.




Article Tags :
Practice Tags :


Be the First to upvote.


Please write to us at contribute@geeksforgeeks.org to report any issue with the above content.