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132 lines
3.2 KiB
PHP
132 lines
3.2 KiB
PHP
--TEST--
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foreach with nested iteratorAggregates
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--FILE--
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<?php
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class EnglishMealIterator implements Iterator {
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private $pos=0;
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private $myContent=array("breakfast", "dinner", "tea");
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public function valid(): bool {
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global $indent;
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echo "$indent--> " . __METHOD__ . " ($this->pos)\n";
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return $this->pos<3;
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}
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public function next(): void {
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global $indent;
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echo "$indent--> " . __METHOD__ . " ($this->pos)\n";
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$this->myContent[$this->pos++];
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}
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public function rewind(): void {
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global $indent;
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echo "$indent--> " . __METHOD__ . " ($this->pos)\n";
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$this->pos=0;
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}
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public function current(): mixed {
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global $indent;
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echo "$indent--> " . __METHOD__ . " ($this->pos)\n";
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return $this->myContent[$this->pos];
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}
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public function key(): mixed {
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global $indent;
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echo "$indent--> " . __METHOD__ . " ($this->pos)\n";
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return "meal " . $this->pos;
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}
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}
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class A1 implements IteratorAggregate {
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function getIterator(): Traversable {
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return new EnglishMealIterator;
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}
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}
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class A2 implements IteratorAggregate {
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function getIterator(): Traversable {
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return new A1;
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}
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}
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class A3 implements IteratorAggregate {
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function getIterator(): Traversable {
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return new A2;
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}
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}
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echo "\n-----( A1: )-----\n";
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foreach (new A1 as $k=>$v) {
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echo "$k => $v\n";
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}
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echo "\n-----( A2: )-----\n";
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foreach (new A2 as $k=>$v) {
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echo "$k => $v\n";
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}
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echo "\n-----( A3: )-----\n";
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foreach (new A3 as $k=>$v) {
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echo "$k => $v\n";
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}
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?>
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--EXPECT--
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-----( A1: )-----
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--> EnglishMealIterator::rewind (0)
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--> EnglishMealIterator::valid (0)
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--> EnglishMealIterator::current (0)
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--> EnglishMealIterator::key (0)
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meal 0 => breakfast
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--> EnglishMealIterator::next (0)
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--> EnglishMealIterator::valid (1)
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--> EnglishMealIterator::current (1)
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--> EnglishMealIterator::key (1)
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meal 1 => dinner
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--> EnglishMealIterator::next (1)
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--> EnglishMealIterator::valid (2)
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--> EnglishMealIterator::current (2)
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--> EnglishMealIterator::key (2)
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meal 2 => tea
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--> EnglishMealIterator::next (2)
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--> EnglishMealIterator::valid (3)
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-----( A2: )-----
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--> EnglishMealIterator::rewind (0)
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--> EnglishMealIterator::valid (0)
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--> EnglishMealIterator::current (0)
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--> EnglishMealIterator::key (0)
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meal 0 => breakfast
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--> EnglishMealIterator::next (0)
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--> EnglishMealIterator::valid (1)
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--> EnglishMealIterator::current (1)
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--> EnglishMealIterator::key (1)
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meal 1 => dinner
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--> EnglishMealIterator::next (1)
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--> EnglishMealIterator::valid (2)
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--> EnglishMealIterator::current (2)
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--> EnglishMealIterator::key (2)
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meal 2 => tea
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--> EnglishMealIterator::next (2)
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--> EnglishMealIterator::valid (3)
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-----( A3: )-----
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--> EnglishMealIterator::rewind (0)
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--> EnglishMealIterator::valid (0)
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--> EnglishMealIterator::current (0)
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--> EnglishMealIterator::key (0)
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meal 0 => breakfast
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--> EnglishMealIterator::next (0)
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--> EnglishMealIterator::valid (1)
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--> EnglishMealIterator::current (1)
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--> EnglishMealIterator::key (1)
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meal 1 => dinner
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--> EnglishMealIterator::next (1)
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--> EnglishMealIterator::valid (2)
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--> EnglishMealIterator::current (2)
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--> EnglishMealIterator::key (2)
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meal 2 => tea
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--> EnglishMealIterator::next (2)
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--> EnglishMealIterator::valid (3)
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