如何将html选择选项值绑定到pl sql过程（HTML＆amp; PHP）

Question

我尽可能简化了我的代码。

我的问题是所选选项中的体育场值与程序绑定错误。它总是返回'F'。但是，我找不到任何解决办法。

$stid = oci_parse($conn,"SELECT Stadium_Name FROM Stadium");
oci_execute($stid);
echo "<select name='stadium'>";
echo "<option value='' ></option>"; 
if ($row = oci_fetch_array($stid, OCI_ASSOC+OCI_RETURN_NULLS)) {
    $name = $row['STADIUM_NAME'];
        echo "<option value='" . $name .  "'>" . $name . "</option>";
    while ($row = oci_fetch_array($stid, OCI_ASSOC+OCI_RETURN_NULLS)){
        $name = $row['STADIUM_NAME'];
        echo "<option value='" . $name .  "'>" . $name . "</option>";
    }

}

        $var=$_POST['stadium'];
        $stid = oci_parse($conn, "begin Package.enter_team(:stadium,:result); end;");
        oci_bind_by_name($stid, ":cursbv", $curs, -1, OCI_B_CURSOR);
        oci_bind_by_name($stid,':stadium',$var);
        oci_bind_by_name($stid,':result',$result,8);
        oci_execute($stid);
        oci_execute($curs);

MY PL / SQL程序：

    PROCEDURE enter_team(
    stadium IN VARCHAR2,
    a_RESULT OUT CHAR)
    IS
    BEGIN
            insert into Belongsto values(stadium);
            a_RESULT:='T';
    EXCEPTION
    WHEN OTHERS THEN
        a_RESULT:='F';
        ROLLBACK;

    END enter_team;