PHP | AppendIterator current() Function

The AppendIterator::current() function is an inbuilt function in PHP which is used to get the current value.

Syntax:

mixed AppendIterator::current( void )

Parameters: This function does not accept any parameters.

Return Value: This function returns the current value if it is valid or NULL otherwise.

Below programs illustrate the AppendIterator::current() function in PHP:

Program 1:

<?php 
  
// Declare an ArrayIterator 
$arr1 = new ArrayIterator(array('G', 'e', 'e', 'k', 's')); 
  
// Create a new AppendIterator 
$itr = new AppendIterator; 
  
// Append the ArrayIterator element 
$itr->append($arr1); 
  
// Display the current element of iterator 
var_dump($itr->current()); 
  
// Use AppendIterator::next() function to 
// move into next element 
$itr->next(); 
  
// Display the current element of iterator 
var_dump($itr->current()); 
  
?> 

Output:

string(1) "G"
string(1) "e"

Program 2:

<?php 
  
// Declare an ArrayIterator 
$arr1 = new ArrayIterator(array("Geeks", "for", "Geeks")); 
$arr2 = new ArrayIterator(array("Computer", "Science", "Portal")); 
  
// Create a new AppendIterator 
$itr = new AppendIterator; 
$itr->append($arr1); 
$itr->append($arr2); 
  
foreach ($itr as $key => $val) { 
    var_dump($itr->current()); 
} 
  
?> 

Output:

string(5) "Geeks"
string(3) "for"
string(5) "Geeks"
string(8) "Computer"
string(7) "Science"
string(6) "Portal"

Reference: https://www.php.net/manual/en/appenditerator.current.php

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