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<?php class ColumnFieldsIterator implements \IteratorAggregate { public function getIterator() { return new \ArrayIterator(['columns2','columns']); } } class RowFieldsIterator implements \IteratorAggregate { public function getIterator() { return new \ArrayIterator(['rows2','rows']); } } class AllIterator implements \IteratorAggregate { public function getIterator() { $multipleIterator = new MultipleIterator; $multipleIterator->attachIterator(new ColumnFieldsIterator); $multipleIterator->attachIterator(new RowFieldsIterator); return $multipleIterator; } } $all = new AllIterator; foreach ($all as $k => $v) { echo "$k => $v\n"; }
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Deprecated: Return type of ColumnFieldsIterator::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/YJqEe on line 5 Deprecated: Return type of RowFieldsIterator::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/YJqEe on line 13 Deprecated: Return type of AllIterator::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/YJqEe on line 21 Fatal error: Uncaught TypeError: MultipleIterator::attachIterator(): Argument #1 ($iterator) must be of type Iterator, ColumnFieldsIterator given in /in/YJqEe:24 Stack trace: #0 /in/YJqEe(24): MultipleIterator->attachIterator(Object(ColumnFieldsIterator)) #1 /in/YJqEe(32): AllIterator->getIterator() #2 {main} thrown in /in/YJqEe on line 24
Process exited with code 255.
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 ColumnFieldsIterator::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/YJqEe on line 5 Deprecated: Return type of RowFieldsIterator::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/YJqEe on line 13 Deprecated: Return type of AllIterator::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/YJqEe on line 21 Fatal error: Uncaught TypeError: MultipleIterator::attachIterator(): Argument #1 ($iterator) must be of type Iterator, ColumnFieldsIterator given in /in/YJqEe:24 Stack trace: #0 /in/YJqEe(24): MultipleIterator->attachIterator(Object(ColumnFieldsIterator)) #1 /in/YJqEe(32): AllIterator->getIterator() #2 {main} thrown in /in/YJqEe on line 24
Process exited with code 255.
Output for 8.0.0 - 8.0.30
Fatal error: Uncaught TypeError: MultipleIterator::attachIterator(): Argument #1 ($iterator) must be of type Iterator, ColumnFieldsIterator given in /in/YJqEe:24 Stack trace: #0 /in/YJqEe(24): MultipleIterator->attachIterator(Object(ColumnFieldsIterator)) #1 /in/YJqEe(32): AllIterator->getIterator() #2 {main} thrown in /in/YJqEe on line 24
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught TypeError: Argument 1 passed to MultipleIterator::attachIterator() must implement interface Iterator, instance of ColumnFieldsIterator given in /in/YJqEe:24 Stack trace: #0 /in/YJqEe(24): MultipleIterator->attachIterator(Object(ColumnFieldsIterator)) #1 /in/YJqEe(32): AllIterator->getIterator() #2 {main} thrown in /in/YJqEe on line 24
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Catchable fatal error: Argument 1 passed to MultipleIterator::attachIterator() must implement interface Iterator, instance of ColumnFieldsIterator given in /in/YJqEe on line 24
Process exited with code 255.
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