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<?php class MyIterator implements Iterator { private static $data; private $var = array(1,2,3); private $current; private $rewind; private $key; public function __construct($array = null) { if (is_array($array)) { $this->var = $array; } } public function __set($name, $value) { return $this->var[$name] = $value; } public function __get($name) { if (isset($this->var[$name])) { return $this->var[$name]; } } public function many() { if($this->rewind){ echo 'VAR2' . PHP_EOL; self::$data = array(88,99,11); } return self::$data[$this->key]; } public function manys() { if($this->rewind){ echo 'VAR' . PHP_EOL; self::$data = array(55,66,77); } return self::$data[$this->key]; } public function rewind() { self::$data = null; $this->rewind = 1; echo "rewinding\n"; reset($this->var); } public function current() { $var = current($this->var); $this->current = $var; echo "current: $var\n"; return $var; } public function key() { $var = key($this->var); $this->key = $var; echo "key: $var\n"; return $var; } public function next() { $var = next($this->var); echo "next: $var\n"; $this->rewind = false; return $var; } public function valid() { $key = key($this->var); $var = ($key !== NULL && $key !== FALSE); echo "valid: $var\n"; if(! $var){ $this->rewind = false; } return $var; } } class foo extends MyIterator{ public function test(){ return $this->many(); } public function test2(){ return $this->manys(); } } $it = new foo(); foreach ($it as $a => $b) { echo PHP_EOL . $it->test() . PHP_EOL . PHP_EOL; echo PHP_EOL . $it->test2() . PHP_EOL . PHP_EOL; print "$a: $b\n"; }
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Deprecated: Return type of MyIterator::current() should either be compatible with Iterator::current(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/mTcII on line 58 Deprecated: Return type of MyIterator::next() should either be compatible with Iterator::next(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/mTcII on line 74 Deprecated: Return type of MyIterator::key() should either be compatible with Iterator::key(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/mTcII on line 66 Deprecated: Return type of MyIterator::valid() should either be compatible with Iterator::valid(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/mTcII on line 82 Deprecated: Return type of MyIterator::rewind() should either be compatible with Iterator::rewind(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/mTcII on line 50 rewinding valid: 1 current: 1 key: 0 VAR2 88 VAR 55 0: 1 next: 2 valid: 1 current: 2 key: 1 66 66 1: 2 next: 3 valid: 1 current: 3 key: 2 77 77 2: 3 next: valid:
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Deprecated: Return type of MyIterator::current() should either be compatible with Iterator::current(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/mTcII on line 58 Deprecated: Return type of MyIterator::next() should either be compatible with Iterator::next(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/mTcII on line 74 Deprecated: Return type of MyIterator::key() should either be compatible with Iterator::key(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/mTcII on line 66 Deprecated: Return type of MyIterator::valid() should either be compatible with Iterator::valid(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/mTcII on line 82 Deprecated: Return type of MyIterator::rewind() should either be compatible with Iterator::rewind(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/mTcII on line 50 rewinding valid: 1 current: 1 key: 0 VAR2 88 VAR 55 0: 1 next: 2 valid: 1 current: 2 key: 1 66 66 1: 2 next: 3 valid: 1 current: 3 key: 2 77 77 2: 3 next: valid:
Output for 7.0.0 - 7.0.31, 7.1.0 - 7.1.21, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
rewinding valid: 1 current: 1 key: 0 VAR2 88 VAR 55 0: 1 next: 2 valid: 1 current: 2 key: 1 66 66 1: 2 next: 3 valid: 1 current: 3 key: 2 77 77 2: 3 next: valid:
preferences:
161.19 ms | 403 KiB | 204 Q