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--TEST--
foreach with iteratorAggregate
--FILE--
<?php
class EnglishMealIterator implements Iterator {
private $pos=0;
private $myContent=array("breakfast", "dinner", "tea");
public function valid() {
global $indent;
echo "$indent--> " . __METHOD__ . " ($this->pos)\n";
return $this->pos < count($this->myContent);
}
public function next() {
global $indent;
echo "$indent--> " . __METHOD__ . " ($this->pos)\n";
$this->pos++;
}
public function rewind() {
global $indent;
echo "$indent--> " . __METHOD__ . " ($this->pos)\n";
$this->pos=0;
}
public function current() {
global $indent;
echo "$indent--> " . __METHOD__ . " ($this->pos)\n";
return $this->myContent[$this->pos];
}
public function key() {
global $indent;
echo "$indent--> " . __METHOD__ . " ($this->pos)\n";
return "meal " . $this->pos;
}
}
class FrenchMealIterator implements Iterator {
private $pos=0;
private $myContent=array("petit dejeuner", "dejeuner", "gouter", "dinner");
public function valid() {
global $indent;
echo "$indent--> " . __METHOD__ . " ($this->pos)\n";
return $this->pos < count($this->myContent);
}
public function next() {
global $indent;
echo "$indent--> " . __METHOD__ . " ($this->pos)\n";
$this->pos++;
}
public function rewind() {
global $indent;
echo "$indent--> " . __METHOD__ . " ($this->pos)\n";
$this->pos=0;
}
public function current() {
global $indent;
echo "$indent--> " . __METHOD__ . " ($this->pos)\n";
return $this->myContent[$this->pos];
}
public function key() {
global $indent;
echo "$indent--> " . __METHOD__ . " ($this->pos)\n";
return "meal " . $this->pos;
}
}
Class EuropeanMeals implements IteratorAggregate {
private $storedEnglishMealIterator;
private $storedFrenchMealIterator;
public function __construct() {
$this->storedEnglishMealIterator = new EnglishMealIterator;
$this->storedFrenchMealIterator = new FrenchMealIterator;
}
public function getIterator() {
global $indent;
echo "$indent--> " . __METHOD__ . "\n";
//Alternate between English and French meals
static $i = 0;
if ($i++%2 == 0) {
return $this->storedEnglishMealIterator;
} else {
return $this->storedFrenchMealIterator;
}
}
}
$f = new EuropeanMeals;
var_dump($f);
echo "-----( Simple iteration 1: )-----\n";
foreach ($f as $k=>$v) {
echo "$k => $v\n";
}
echo "-----( Simple iteration 2: )-----\n";
foreach ($f as $k=>$v) {
echo "$k => $v\n";
}
$indent = " ";
echo "\n\n\n-----( Nested iteration: )-----\n";
$count=1;
foreach ($f as $k=>$v) {
echo "\nTop level " . $count++ . ": \n";
echo "$k => $v\n";
$indent = " ";
foreach ($f as $k=>$v) {
echo " $k => $v\n";
}
$indent = " ";
}
?>
===DONE===
--EXPECTF--
object(EuropeanMeals)#%d (2) {
["storedEnglishMealIterator":"EuropeanMeals":private]=>
object(EnglishMealIterator)#%d (2) {
["pos":"EnglishMealIterator":private]=>
int(0)
["myContent":"EnglishMealIterator":private]=>
array(3) {
[0]=>
string(9) "breakfast"
[1]=>
string(6) "dinner"
[2]=>
string(3) "tea"
}
}
["storedFrenchMealIterator":"EuropeanMeals":private]=>
object(FrenchMealIterator)#%d (2) {
["pos":"FrenchMealIterator":private]=>
int(0)
["myContent":"FrenchMealIterator":private]=>
array(4) {
[0]=>
string(14) "petit dejeuner"
[1]=>
string(8) "dejeuner"
[2]=>
string(6) "gouter"
[3]=>
string(6) "dinner"
}
}
}
-----( Simple iteration 1: )-----
--> EuropeanMeals::getIterator
--> EnglishMealIterator::rewind (0)
--> EnglishMealIterator::valid (0)
--> EnglishMealIterator::current (0)
--> EnglishMealIterator::key (0)
meal 0 => breakfast
--> EnglishMealIterator::next (0)
--> EnglishMealIterator::valid (1)
--> EnglishMealIterator::current (1)
--> EnglishMealIterator::key (1)
meal 1 => dinner
--> EnglishMealIterator::next (1)
--> EnglishMealIterator::valid (2)
--> EnglishMealIterator::current (2)
--> EnglishMealIterator::key (2)
meal 2 => tea
--> EnglishMealIterator::next (2)
--> EnglishMealIterator::valid (3)
-----( Simple iteration 2: )-----
--> EuropeanMeals::getIterator
--> FrenchMealIterator::rewind (0)
--> FrenchMealIterator::valid (0)
--> FrenchMealIterator::current (0)
--> FrenchMealIterator::key (0)
meal 0 => petit dejeuner
--> FrenchMealIterator::next (0)
--> FrenchMealIterator::valid (1)
--> FrenchMealIterator::current (1)
--> FrenchMealIterator::key (1)
meal 1 => dejeuner
--> FrenchMealIterator::next (1)
--> FrenchMealIterator::valid (2)
--> FrenchMealIterator::current (2)
--> FrenchMealIterator::key (2)
meal 2 => gouter
--> FrenchMealIterator::next (2)
--> FrenchMealIterator::valid (3)
--> FrenchMealIterator::current (3)
--> FrenchMealIterator::key (3)
meal 3 => dinner
--> FrenchMealIterator::next (3)
--> FrenchMealIterator::valid (4)
-----( Nested iteration: )-----
--> EuropeanMeals::getIterator
--> EnglishMealIterator::rewind (3)
--> EnglishMealIterator::valid (0)
--> EnglishMealIterator::current (0)
--> EnglishMealIterator::key (0)
Top level 1:
meal 0 => breakfast
--> EuropeanMeals::getIterator
--> FrenchMealIterator::rewind (4)
--> FrenchMealIterator::valid (0)
--> FrenchMealIterator::current (0)
--> FrenchMealIterator::key (0)
meal 0 => petit dejeuner
--> FrenchMealIterator::next (0)
--> FrenchMealIterator::valid (1)
--> FrenchMealIterator::current (1)
--> FrenchMealIterator::key (1)
meal 1 => dejeuner
--> FrenchMealIterator::next (1)
--> FrenchMealIterator::valid (2)
--> FrenchMealIterator::current (2)
--> FrenchMealIterator::key (2)
meal 2 => gouter
--> FrenchMealIterator::next (2)
--> FrenchMealIterator::valid (3)
--> FrenchMealIterator::current (3)
--> FrenchMealIterator::key (3)
meal 3 => dinner
--> FrenchMealIterator::next (3)
--> FrenchMealIterator::valid (4)
--> EnglishMealIterator::next (0)
--> EnglishMealIterator::valid (1)
--> EnglishMealIterator::current (1)
--> EnglishMealIterator::key (1)
Top level 2:
meal 1 => dinner
--> EuropeanMeals::getIterator
--> EnglishMealIterator::rewind (1)
--> EnglishMealIterator::valid (0)
--> EnglishMealIterator::current (0)
--> EnglishMealIterator::key (0)
meal 0 => breakfast
--> EnglishMealIterator::next (0)
--> EnglishMealIterator::valid (1)
--> EnglishMealIterator::current (1)
--> EnglishMealIterator::key (1)
meal 1 => dinner
--> EnglishMealIterator::next (1)
--> EnglishMealIterator::valid (2)
--> EnglishMealIterator::current (2)
--> EnglishMealIterator::key (2)
meal 2 => tea
--> EnglishMealIterator::next (2)
--> EnglishMealIterator::valid (3)
--> EnglishMealIterator::next (3)
--> EnglishMealIterator::valid (4)
===DONE===
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