PHP Unconference Europe 2015

ArrayObject::getIterator

(PHP 5 >= 5.0.0)

ArrayObject::getIteratorCreate a new iterator from an ArrayObject instance

Description

public ArrayIterator ArrayObject::getIterator ( void )

Create a new iterator from an ArrayObject instance.

Parameters

This function has no parameters.

Return Values

An iterator from an ArrayObject.

Examples

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();
}
?>

The above example will output:

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

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User Contributed Notes 1 note

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doug at centraldesktop
11 months ago
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
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