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<?php function mutate($value, Generator $mutator) { while ($mutator->valid()) { try { $fn = $mutator->current(); $value = $fn($value); $mutator->send($value); } catch (Exception $e) { $mutator->throw($e); } } } $mutations = [ function ($n) { return $n + 1; }, function ($n) { return $n + 2; }, function ($n) { return $n + 3; }, function ($n) { return $n + 4; }, function ($n) { throw new Exception('Bad Mutation'); } ]; function debuggingMutator(array $mutations) { foreach ($mutations as $mutation) { $result = (yield $mutation); echo "Result: {$result}\n"; } } mutate(0, debuggingMutator($mutations));
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Result: 1 Result: 3 Result: 6 Result: 10 Fatal error: Uncaught Exception: Bad Mutation in /in/208oN:21 Stack trace: #0 /in/208oN(8): {closure}(10) #1 /in/208oN(32): mutate(10, Object(Generator)) #2 {main} thrown in /in/208oN on line 21
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Result: 1 Result: 3 Result: 6 Result: 10 Fatal error: Uncaught Exception: Bad Mutation in /in/208oN:21 Stack trace: #0 /in/208oN(8): {closure}(10) #1 /in/208oN(32): mutate(10, Object(Generator)) #2 {main} thrown in /in/208oN on line 21
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Result: 1 Result: 3 Result: 6 Result: 10 Fatal error: Uncaught exception 'Exception' with message 'Bad Mutation' in /in/208oN:21 Stack trace: #0 /in/208oN(8): {closure}(10) #1 /in/208oN(32): mutate(0, Object(Generator)) #2 {main} thrown in /in/208oN on line 21
Process exited with code 255.
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected '$mutation' (T_VARIABLE) in /in/208oN on line 27
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/208oN on line 16
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/208oN on line 16
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '&' or T_VARIABLE or T_CONST in /in/208oN 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 '&' or T_VARIABLE or T_CONST in /in/208oN on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'&'' or `T_VARIABLE' or `T_CONST' in /in/208oN on line 3
Process exited with code 255.

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