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<?php class InfiniteNumbers implements Iterator { public $start; public $current; public function __construct($start) { $this->start = $start; $this->current = $start; } public function next() { echo "next called\n"; $this->current++; } public function current() { echo "current called\n"; return $this->current; } public function key() { echo "key called\n"; return $this->current; } public function rewind() { echo "rewind called\n"; $this->current = $this->start; } public function valid() { echo "valid called\n"; return true; } } $infinite = new InfiniteNumbers(1); var_dump($infinite); foreach($infinite as $number) { if($number > 10) { break; } echo $number."\n"; }
Output for git.master, git.master_jit, rfc.property-hooks
Deprecated: Return type of InfiniteNumbers::current() should either be compatible with Iterator::current(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/NSZoi on line 16 Deprecated: Return type of InfiniteNumbers::next() should either be compatible with Iterator::next(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/NSZoi on line 11 Deprecated: Return type of InfiniteNumbers::key() should either be compatible with Iterator::key(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/NSZoi on line 21 Deprecated: Return type of InfiniteNumbers::valid() should either be compatible with Iterator::valid(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/NSZoi on line 31 Deprecated: Return type of InfiniteNumbers::rewind() should either be compatible with Iterator::rewind(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/NSZoi on line 26 object(InfiniteNumbers)#1 (2) { ["start"]=> int(1) ["current"]=> int(1) } rewind called valid called current called 1 next called valid called current called 2 next called valid called current called 3 next called valid called current called 4 next called valid called current called 5 next called valid called current called 6 next called valid called current called 7 next called valid called current called 8 next called valid called current called 9 next called valid called current called 10 next called valid called current called

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