Is there a method to instantiate a child class with PDO::FETCH_CLASS
based on retrieved data? Suppose that there exists an abstract class A
, classes B
and C
that are implementations of A
and a field on my table named classname
that will be used to instantiate the right class. Is it possible?
如何将PDO :: FETCH_CLASS与抽象类一起使用?
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1条回答 默认 最新
- douyu0792 2012-10-01 04:43关注
Sounds like you need,
PDO::FETCH_CLASSTYPE
. From the manual:PDO::FETCH_CLASS: returns a new instance of the requested class, mapping the columns of the result set to named properties in the class. If fetch_style includes PDO::FETCH_CLASSTYPE (e.g. PDO::FETCH_CLASS | PDO::FETCH_CLASSTYPE) then the name of the class is determined from a value of the first column.
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