PHP iterator_count() Function - Coding

The iterator_count() function is an inbuilt function in PHP that is used to count the number of elements in an iterator. An iterator is an object that is a collection of elements.

Syntax:

iterator_count(Traversable $iterator) : int

Parameters: This function accepts only one parameter which is described below.

$iterator: The iterator for which you want to count the number of elements. This should be an object that implements the traversable interface, such as an array or an instance of a class that implements iterator or IteratorAggregate.

Return Value: The iterator_count() function returns the number of elements in the iterator if this function successfully executes.

Program 1: The following program demonstrates the iterator_count() function.

PHP

<?php 
  
$numbers = [1, 2, 3, 4, 5]; 
$iterator = new ArrayIterator($numbers); 
$numElements = iterator_count($iterator); 
echo "Total elements in the iterator: $numElements"; 
  
?>

Output

Total elements in the iterator: 5

Program 2: The following program demonstrates the iterator_count() function.

PHP

<?php 
  
// Sample string 
$text = "GeeksforGeeks"; 
$iterator = new ArrayIterator(str_split($text)); 
  
// Count the total number of characters 
// in the string 
$numCharacters = iterator_count($iterator); 
echo "Total number of characters in the string: $numCharacters"; 
  
?>

Output

Total number of characters in the string: 13

Reference: https://www.php.net/manual/en/function.iterator-count.php

Reffered: https://www.geeksforgeeks.org

PHP

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Category:	Coding
Sub Category:	Tutorial
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