The AppendIterator::next() function is an inbuilt function in PHP which is used to move the element into the next element.
Syntax:
void AppendIterator::next( void )
Parameters: This function does not accept any parameters.
Return Value: This function does not return any value.
Below programs illustrate the AppendIterator::next() 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( "a" => "Geeks", "b" => "for", "c" => "Geeks" ) ); $arr2 = new ArrayIterator( array( "x" => "Computer", "y" => "Science", "z" => "Portal" ) ); // Create a new AppendIterator $itr = new AppendIterator; $itr->append($arr1); $itr->append($arr2); $itr->rewind(); while ($itr->valid()) { echo "ArrayIterator Key: " . $itr->key() . " ArrayIterator Value: " . $itr->current() . "\n"; $itr->next(); } ?> |
Output:
ArrayIterator Key: a ArrayIterator Value: Geeks ArrayIterator Key: b ArrayIterator Value: for ArrayIterator Key: c ArrayIterator Value: Geeks ArrayIterator Key: x ArrayIterator Value: Computer ArrayIterator Key: y ArrayIterator Value: Science ArrayIterator Key: z ArrayIterator Value: Portal
Reference: https://www.php.net/manual/en/appenditerator.next.php
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