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(PHP 5 >= 5.0.0)
ArrayObject::getIterator — Create a new iterator from an ArrayObject instance
Create a new iterator from an ArrayObject instance.
此函数没有参数。
An iterator from an ArrayObject.
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
[#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