3v4l.org

run code in 300+ PHP versions simultaneously
<?php class MyIterator implements Iterator { private $var = array(); public function __construct($array) { if (is_array($array)) { $this->var = $array; } } public function rewind() { echo "перемотка в начало\n"; reset($this->var); } public function current() { $var = current($this->var); echo "текущий: $var\n"; return $var; } public function key() { $var = key($this->var); echo "ключ: $var\n"; return $var; } public function next() { $var = next($this->var); echo "следующий: $var\n"; return $var; } public function valid() { $key = key($this->var); $var = ($key !== NULL && $key !== FALSE); echo "верный: $var\n"; return $var; } } $values = array(1,2,3); $it = new MyIterator($values); array_map(function($v) { var_dump($v); }, $it);
Output for 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Deprecated: Return type of MyIterator::current() should either be compatible with Iterator::current(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/ooYtJ on line 20 Deprecated: Return type of MyIterator::next() should either be compatible with Iterator::next(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/ooYtJ on line 34 Deprecated: Return type of MyIterator::key() should either be compatible with Iterator::key(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/ooYtJ on line 27 Deprecated: Return type of MyIterator::valid() should either be compatible with Iterator::valid(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/ooYtJ on line 41 Deprecated: Return type of MyIterator::rewind() should either be compatible with Iterator::rewind(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/ooYtJ on line 14 Fatal error: Uncaught TypeError: array_map(): Argument #2 ($array) must be of type array, MyIterator given in /in/ooYtJ:54 Stack trace: #0 /in/ooYtJ(54): array_map(Object(Closure), Object(MyIterator)) #1 {main} thrown in /in/ooYtJ on line 54
Process exited with code 255.
Output for 8.1.0 - 8.1.27
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/ooYtJ on line 20 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/ooYtJ on line 34 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/ooYtJ on line 27 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/ooYtJ on line 41 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/ooYtJ on line 14 Fatal error: Uncaught TypeError: array_map(): Argument #2 ($array) must be of type array, MyIterator given in /in/ooYtJ:58 Stack trace: #0 /in/ooYtJ(58): array_map(Object(Closure), Object(MyIterator)) #1 {main} thrown in /in/ooYtJ on line 58
Process exited with code 255.
Output for 8.0.0 - 8.0.30
Fatal error: Uncaught TypeError: array_map(): Argument #2 ($array) must be of type array, MyIterator given in /in/ooYtJ:58 Stack trace: #0 /in/ooYtJ(58): array_map(Object(Closure), Object(MyIterator)) #1 {main} thrown in /in/ooYtJ on line 58
Process exited with code 255.
Output for 7.3.12 - 7.3.33, 7.4.0 - 7.4.33
Warning: array_map(): Expected parameter 2 to be an array, object given in /in/ooYtJ on line 58
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33
Warning: array_map(): Argument #2 should be an array in /in/ooYtJ on line 58
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/ooYtJ on line 54
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION, expecting ')' in /in/ooYtJ on line 54
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '{' in /in/ooYtJ on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting '{' in /in/ooYtJ on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'{'' in /in/ooYtJ on line 3
Process exited with code 255.

preferences:
224.23 ms | 401 KiB | 310 Q