PHP | AppendIterator __construct() Function

PHP ArrayIterator __construct() Function

The AppendIterator::__construct() function is an inbuilt function in PHP which is used to construct an AppendIterator.

Syntax:

public AppendIterator::__construct( void )

Parameters: This function does not accept any parameters.

Return Value: This function does not return any value.

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

Program 1:

<?php 
  
// Declare an ArrayIterator 
$arr1 = new ArrayIterator(array('G', 'e', 'e', 'k', 's')); 
$arr2 = new ArrayIterator(array('f', 'o', 'r')); 
$arr3 = new ArrayIterator(array('G', 'e', 'e', 'k', 's')); 
  
// Create a new AppendIterator 
$itr = new AppendIterator; 
$itr->append($arr1); 
$itr->append($arr2); 
$itr->append($arr3); 
  
// Display the result 
foreach ($itr as $key => $val) { 
    echo $key . " => " . $val . PHP_EOL; 
} 
  
?> 

Output:

0 => G
1 => e
2 => e
3 => k
4 => s
0 => f
1 => o
2 => r
0 => G
1 => e
2 => e
3 => k
4 => s

Program 2:

<?php 
  
// Declare an ArrayIterator 
$arr1 = new ArrayIterator(array("Beginner", "for", "Beginner")); 
$arr2 = new ArrayIterator(array("Computer", "Science", "Portal")); 
  
// Create a new AppendIterator 
$itr = new AppendIterator; 
$itr->append($arr1); 
$itr->append($arr2); 
  
// Display the result 
foreach ($itr as $key => $val) { 
    echo $key . " => " . $val . PHP_EOL; 
} 
  
?> 

Output:

0 => Beginner
1 => for
2 => Beginner
0 => Computer
1 => Science
2 => Portal

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

Tags:

#PHP-function #PHP #Web Technologies

PHP ArrayIterator __construct() Function

PHP | AppendIterator __construct() Function

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