ReflectionParameter::isDefaultValueAvailable Checks if a default value is available &reftitle.description; public boolReflectionParameter::isDefaultValueAvailable Checks if a default value for the parameter is available. &reftitle.parameters; &no.function.parameters; &reftitle.returnvalues; &true; if a default value is available, otherwise &false; &reftitle.seealso; ReflectionParameter::getDefaultValue ReflectionParameter::getName