AppendIterator::getInnerIterator

(PHP 5 >= 5.1.0)

AppendIterator::getInnerIterator — Gets the inner iterator

说明

public Iterator AppendIterator::getInnerIterator ( void )

This method returns the current inner iterator.

参数

此函数没有参数。

返回值

The current inner iterator, or NULL if there is not one.

范例

Example #1 AppendIterator::getInnerIterator() example

  <?php
$array_a  = new  ArrayIterator (array( 'a'  =>  'aardwolf' ,  'b'  =>  'bear' ,  'c'  =>  'capybara' ));
 $array_b  = new  RegexIterator ( $array_a ,  '/^[ac]/' );

 $iterator  = new  AppendIterator ;
 $iterator -> append ( $array_a );
 $iterator -> append ( $array_b );

foreach ( $iterator  as  $current ) {
     $inner  =  $iterator -> getInnerIterator ();
    if ( $inner  instanceOf  RegexIterator ) {
        echo  'Filtered: ' ;
    } else {
        echo  'Original: ' ;
    }
    echo  $current  .  PHP_EOL ;
}
 ?>

以上例程会输出：

Original: aardwolf
Original: bear
Original: capybara
Filtered: aardwolf
Filtered: capybara

参见

AppendIterator::getIteratorIndex() - Gets an index of iterators

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