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<?php class DebugRII extends RecursiveIteratorIterator { public function beginChildren() { echo __METHOD__, "\n"; } public function beginIteration() { echo __METHOD__, "\n"; } public function callGetChildren() { echo __METHOD__, "\n"; } public function callHasChildren() { echo __METHOD__, "\n"; } public function endChildren() { echo __METHOD__, "\n"; } public function endIteration() { echo __METHOD__, "\n"; } } class DebugRAI extends RecursiveArrayIterator { public function rewind() { echo __METHOD__, "\n"; return parent::rewind(); } public function current() { echo __METHOD__, "\n"; return parent::current(); } public function key() { echo __METHOD__, "\n"; return parent::key(); } public function valid() { echo __METHOD__, "\n"; return parent::valid(); } public function next() { echo __METHOD__, "\n"; return parent::next(); } } $array = array("A","B","C"); $iterator = new RecursiveArrayIterator(new RecursiveArrayIterator($array)); while ($iterator->valid()) { echo $iterator->current(), "\n"; $iterator->next(); }
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Deprecated: Return type of DebugRII::beginIteration() should either be compatible with RecursiveIteratorIterator::beginIteration(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/P0Ggp on line 4 Deprecated: Return type of DebugRII::endIteration() should either be compatible with RecursiveIteratorIterator::endIteration(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/P0Ggp on line 8 Deprecated: Return type of DebugRII::callHasChildren() should either be compatible with RecursiveIteratorIterator::callHasChildren(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/P0Ggp on line 6 Deprecated: Return type of DebugRII::callGetChildren() should either be compatible with RecursiveIteratorIterator::callGetChildren(): ?RecursiveIterator, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/P0Ggp on line 5 Deprecated: Return type of DebugRII::beginChildren() should either be compatible with RecursiveIteratorIterator::beginChildren(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/P0Ggp on line 3 Deprecated: Return type of DebugRII::endChildren() should either be compatible with RecursiveIteratorIterator::endChildren(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/P0Ggp on line 7 Deprecated: Return type of DebugRAI::rewind() should either be compatible with ArrayIterator::rewind(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/P0Ggp on line 12 Deprecated: Return type of DebugRAI::current() should either be compatible with ArrayIterator::current(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/P0Ggp on line 13 Deprecated: Return type of DebugRAI::key() should either be compatible with ArrayIterator::key(): string|int|null, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/P0Ggp on line 14 Deprecated: Return type of DebugRAI::next() should either be compatible with ArrayIterator::next(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/P0Ggp on line 16 Deprecated: Return type of DebugRAI::valid() should either be compatible with ArrayIterator::valid(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/P0Ggp on line 15 A B C
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 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 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
A B C
Output for 5.0.0 - 5.0.5
Fatal error: Class 'RecursiveArrayIterator' not found in /in/P0Ggp on line 11
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/P0Ggp 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 T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/P0Ggp on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/P0Ggp on line 3
Process exited with code 255.
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