SplPriorityQueue::valid
Introduction
Other Basic Extensions
PHP Manual
SPL Type Handling
Introduction
SplInt
— The SplInt class
SplInt::__construct
— Constructs an integer object type
SplFloat
— The SplFloat class
SplFloat::__construct
— Constructs a float object type
SplEnum
— The SplEnum class
SplEnum::__construct
— Constructs an enumeger object type
SplBool
— The SplBool class
SplBool::__construct
— Constructs a bool object type
SplPriorityQueue::valid
Introduction
Other Basic Extensions
PHP Manual