我在登陆时把SESSION["User"]赋值，但是取值时提示：
Notice: main() [function.main]: The script tried to execute a method or access a property of an incomplete object. Please ensure that the class definition "UserData" of the object you are trying to operate on was loaded _before_ unserialize() gets called or provide a __autoload() function to load the class definition in F:\MyDocuments\java\AcgIndex\src\pages\HomePage.php on line 32不知道为什么？
Notice: main() [function.main]: The script tried to execute a method or access a property of an incomplete object. Please ensure that the class definition "UserData" of the object you are trying to operate on was loaded _before_ unserialize() gets called or provide a __autoload() function to load the class definition in F:\MyDocuments\java\AcgIndex\src\pages\HomePage.php on line 32不知道为什么？
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