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run code in 150+ php & hhvm versions
Bugs & Features
<?php function getClassReflector($className) { static $reflectionClassMap = []; return static function () use ($className, &$reflectionClassMap) { return isset($reflectionClassMap[$className]) ? $reflectionClassMap[$className] : $reflectionClassMap[$className] = new ReflectionClass($className); }; } $xmlReaderReflector = getClassReflector('XMLReader'); $xmlWriterReflector = getClassReflector('XMLWriter'); var_dump($xmlReaderReflector()); var_dump($xmlReaderReflector()); var_dump($xmlWriterReflector()); var_dump($xmlWriterReflector());
based on EKQgr
Output for 5.4.0 - 5.6.28, 7.0.0 - 7.1.0
object(ReflectionClass)#3 (1) { ["name"]=> string(9) "XMLReader" } object(ReflectionClass)#3 (1) { ["name"]=> string(9) "XMLReader" } object(ReflectionClass)#4 (1) { ["name"]=> string(9) "XMLWriter" } object(ReflectionClass)#4 (1) { ["name"]=> string(9) "XMLWriter" }
Output for hhvm-3.12.0
object(ReflectionClass)#3 (2) { ["name"]=> string(9) "XMLReader" ["obj":"ReflectionClass":private]=> NULL } object(ReflectionClass)#3 (2) { ["name"]=> string(9) "XMLReader" ["obj":"ReflectionClass":private]=> NULL } object(ReflectionClass)#4 (2) { ["name"]=> string(9) "XMLWriter" ["obj":"ReflectionClass":private]=> NULL } object(ReflectionClass)#4 (2) { ["name"]=> string(9) "XMLWriter" ["obj":"ReflectionClass":private]=> NULL }
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/7MEr5 on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/7MEr5 on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/7MEr5 on line 5
Process exited with code 255.