无法访问数组,但var_dump()
看到它。
session_start();
include './entities/Answer.php';
include './entities/Question.php';
include './Database.php';
if (isset($_SESSION["question"])) {
$correct = TRUE;
var_dump($_SESSION["question"]);
var_dump($_SESSION["question"]->answers);
}
} else {
echo "<h2>no question selected.</h2>";
}
var_dump($_SESSION["question"]);
显示:
object(__PHP_Incomplete_Class)#2 (8) {
["__PHP_Incomplete_Class_Name"]=> string(8) "Question"
["id"]=> string(1) "1"
["correct"]=> NULL
["wrong"]=> NULL
["answers"]=> array(3) {
[0]=> object(__PHP_Incomplete_Class)#3 (5) {
["__PHP_Incomplete_Class_Name"]=> string(6) "Answer"
["correct"]=> string(1) "0"
["question_id":"Answer":private]=> NULL
["id"]=> string(1) "1"
["text"]=> string(9) "antwort 1"
}
[1]=> object(__PHP_Incomplete_Class)#4 (5) {
["__PHP_Incomplete_Class_Name"]=> string(6) "Answer"
["correct"]=> string(1) "0"
["question_id":"Answer":private]=> NULL
["id"]=> string(1) "2"
["text"]=> string(5) "ant 2"
}
[2]=> object(__PHP_Incomplete_Class)#5 (5) {
["__PHP_Incomplete_Class_Name"]=> string(6) "Answer"
["correct"]=> string(1) "0"
["question_id":"Answer":private]=> NULL
["id"]=> string(1) "3"
["text"]=> string(5) "ant 3"
}
}
["creator_id"]=> NULL
["categories"]=> array(0) { }
["text"]=> string(17) "eine Test frage ?"
}
但是var_dump($_SESSION["question"]->answers);
显示NULL
。
我不太了解。
我收到此错误消息:
PHP注意:main():该脚本试图执行方法或访问不完整对象的属性。请确保在 调用unserialize()之前已加载要尝试操作的对象的类定义“问题”,或提供__autoload()函数来加载类定义
感谢您的帮助。
答案 0 :(得分:2)
在尝试与会话对象进行交互之前,您需要运行session_start()
。
此外,您需要在调用session_start()之前定义对象,否则PHP的会话处理程序将不知道如何反序列化对象。这就是为什么您看到__PHP_Incomplete_Class
的原因。
编辑:我发现此答案可能对您PHP __PHP_Incomplete_Class Object with my $_SESSION data
有帮助答案 1 :(得分:0)
我必须将session_start放在类定义之后。感谢Progrock
.label{padding: 5px 10px; color: #fff;}
.red{background-color: #da4453}
.blue{background-color: #3bafda;}
<span class="label red">red label</span>
<span class="label blue">blue label</span>