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<?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());
Output for git.master, git.master_jit, rfc.property-hooks
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" }

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