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<?php class Subject implements Iterator { public function current() { return 2; } public function next() {} public function key() { return 1; } public function valid() { return false; } public function rewind() {} /** @return string */ public function blahBlahBlah() { return "blah"; } } $iter = new IteratorIterator(new Subject()); echo $iter->blahBlahBlah();
Output for git.master, git.master_jit, rfc.property-hooks
Deprecated: Return type of Subject::current() should either be compatible with Iterator::current(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/vCAfm on line 4 Deprecated: Return type of Subject::next() should either be compatible with Iterator::next(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/vCAfm on line 5 Deprecated: Return type of Subject::key() should either be compatible with Iterator::key(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/vCAfm on line 6 Deprecated: Return type of Subject::valid() should either be compatible with Iterator::valid(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/vCAfm on line 7 Deprecated: Return type of Subject::rewind() should either be compatible with Iterator::rewind(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/vCAfm on line 8 blah

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