The AppendIterator::append() function is an inbuilt function in PHP which is used to append an iterator.
Syntax:
void AppendIterator::append( Iterator $iterator )
Parameters: This function accepts single parameter $iterator which holds the iterator to append.
Return Value: This function does not return any value.
Below programs illustrate the AppendIterator::append() 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 $val) {     echo $val; }   ?> |
Output:
neveropen
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);   // Display the result foreach ($itr as $val) {     echo $val; }   ?> |
Output:
neveropenComputerSciencePortal
Reference: https://www.php.net/manual/en/appenditerator.append.php
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