ArrayObject::getIterator

(PHP 5 >= 5.0.0)

ArrayObject::getIterator — Create a new iterator from an ArrayObject instance

说明

public ArrayIterator ArrayObject::getIterator ( void )

Create a new iterator from an ArrayObject instance.

参数

此函数没有参数。

返回值

An iterator from an ArrayObject.

范例

Example #1 ArrayObject::getIterator() example

  <?php
$array  = array( '1'  =>  'one' ,
                '2'  =>  'two' ,
                '3'  =>  'three' );

 $arrayobject  = new  ArrayObject ( $array );

 $iterator  =  $arrayobject -> getIterator ();

while( $iterator -> valid ()) {
    echo  $iterator -> key () .  ' => '  .  $iterator -> current () .  "\n" ;

     $iterator -> next ();
}
 ?>

以上例程会输出：

1 => one
2 => two
3 => three

用户评论:

[#1] doug at centraldesktop [2013-11-07 22:10:54]

ArrayObject iterator class requires a child of ArrayObject or ArrayIterator

<?php class MyIterator implements Iterator { public function __construct(ArrayObject $array, $flags = 0) { // ... } public function current() { // .. } public function next() { // .. } public function key() { // .. } public function valid() { // .. } public function rewind() { // .. } } $obj = new ArrayObject(array(), 0, 'MyIterator'); $obj->getIterator(); ?>

PHP Fatal error: ArrayObject::getIterator(): Internal compiler error, Class is not child of ArrayObject or ArrayIterator in php shell code on line 1