Question

我有这个代码在$ _SESSION中存储“学生”对象：

if(isset($_POST["name"]) && isset($_POST["note"]) && isset($_POST["year"]))
    {
        $nom = $_POST["name"];
        $note = $_POST["note"];
        $session = $_POST["year"];

            $vec = array("name" => $name, "note" => $note, "year" => $year);
            $_SESSION["students"][] = $vec;
            echo "The student has been added.<br><br>";
    }

然后我将此代码放在另一页中：

function calculateAverage()
    {
        $av = 0;
        $count = 0;
        foreach($_SESSION['students'] as $student)
        {
            $av = $av + $student["note"];
            $count = $count + 1;
        }
        return $av / $count;
    }

    function bestNote()
    {
        //$best = array_search(max())
        return $best;
    }

    function worstNote()
    {
        $worst = min(array_search(["note"], $_SESSION['students']));
        return $worst;
    }


    if(isset($_SESSION['students']))
    {
        echo "The average note of the group is = " . calculateAverage() . "\n";
        echo "The one with the best note is " . bestNote()["name"] . " is " . hauteNote()["note"] . " points.\n";
        echo "The one with the worst note is " . worstNote()["name"] . " with " . basseNote()["note"] . " points.\n";
    }

如您所见，它还没有完成。我想要做的是能够获得存储在$ _SESSION [“学生”]中的学生的笔记。我怎么能这样做？

感谢您的回答。

Answer 1

you can access the stored values within a nested array like so:

However, you are currently not adding but overwriting data. Use array_push() to add data to an array (your students).

And when adding a student to the array, make sure to give it a name to make it associative so you can simply "call a student":

$studentNote = $_SESSION["students"][YourActiveStudent]["note"];

this way, if the $nom was "Max", you could say

$_SESSION["students"][$nom] = $vec;

to get Max's note (BTW, I assume you are talking about grades or marks, rather than notes?)

如何获取存储在$ _SESSION中的对象的属性值？

1 个答案: