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PHP Manual
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SPL Type Handling
SPL Type Handling
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SplType
— The SplType class
SplType::__construct
— Creates a new value of some type
SplInt
— The SplInt class
SplFloat
— The SplFloat class
SplEnum
— The SplEnum class
SplEnum::getConstList
— Returns all consts (possible values) as an array
SplBool
— The SplBool class
SplString
— The SplString class