AppendIterator::__construct

(PHP 5 >= 5.1.0, PHP 7)

Constructs an AppendIterator

public AppendIterator::__construct ( void )

Constructs an AppendIterator.

Returns:

No value is returned.

Examples:

Iterating AppendIterator with foreach

<?php
$pizzas   = new ArrayIterator(array('Margarita', 'Siciliana', 'Hawaii'));
$toppings = new ArrayIterator(array('Cheese', 'Anchovies', 'Olives', 'Pineapple', 'Ham'));
 
$appendIterator = new AppendIterator;
$appendIterator->append($pizzas);
$appendIterator->append($toppings);
 
foreach ($appendIterator as $key => $item) {
    echo $key . ' => ' . $item . PHP_EOL;
}
?>

The above example will output:

0 => Margarita
1 => Siciliana
2 => Hawaii
0 => Cheese
1 => Anchovies
2 => Olives
3 => Pineapple
4 => Ham

Iterating AppendIterator with the AppendIterator API

<?php
$pizzas   = new ArrayIterator(array('Margarita', 'Siciliana', 'Hawaii'));
$toppings = new ArrayIterator(array('Cheese', 'Anchovies', 'Olives', 'Pineapple', 'Ham'));
 
$appendIterator = new AppendIterator;
$appendIterator->append($pizzas);
$appendIterator->append($toppings);
 
while ($appendIterator->valid()) {
    printf(
        '%s => %s => %s%s',
        $appendIterator->getIteratorIndex(),
        $appendIterator->key(),
        $appendIterator->current(),
        PHP_EOL
    );
    $appendIterator->next();
}
?>

The above example will output:

0 => 0 => Margarita
0 => 1 => Siciliana
0 => 2 => Hawaii
1 => 0 => Cheese
1 => 1 => Anchovies
1 => 2 => Olives
1 => 3 => Pineapple
1 => 4 => Ham