函数从数据库中删除数据

Question

当我尝试通过用户控制面板网站删除某些角色数据库时，出现了问题。

这是我的功能代码：

function DeleteChar() {
global $pdo;
if($_POST['name'] !== ''&& $_POST['characterid'] !== ''){
    $charname = $_POST['name'];
    $delchar = $_POST['characterid'];
    $query = $pdo->prepare("SELECT * FROM `characters` WHERE `name` = :namechar");
    $query->execute(array(
        ':namechar' => $charname
    ));
        if($_SESSION['adminlvl'] == 5 || $_SESSION['adminlvl'] == 10) {
                $query2 = $pdo->prepare("DELETE from `characters` where `characters`.`characterid` = :del_char and `name`= :namechar");
                $query2->execute(array(
                    ':del_char' => $delchar,
                    ':namechar' => $charname
                    ));

     if($query->rowCount() > 0) {
            Logs(2, "Successfully deleted the character from the database");
            GetMessage("Congratulation!", "Successfully deleted ". $charname . " ! ", 3);
        }
        else {
            GetMessage("Oh snap!", "Failed to delete" . $charname . " from the database!", 1);
            }
    }   
    else {
        GetMessage("Oops!", "Unable to delete the character from the database!", 1);
        }
}
else {
    GetMessage("Oh snap!", "Character name is empty!", 1);
    }
echo "<meta http-equiv='refresh' content='2'>";
}

$_SESSION['adminlvl'] == 5 || $_SESSION['adminlvl'] == 10仅用于特殊的管理员级别，他们可以尝试从数据库中删除字符。

我的表characters充满了'name' 'characterid' and 'userid'

我尝试了将近两天，但不知道问题出在哪里。

无论如何，我与此类似functions，并且可以正常工作

function RemoveStaff() {
global $pdo;
if($_POST['forumname'] !== '') {
    $forumname = $_POST['forumname'];
    if($_SESSION['adminlvl'] == 9 || $_SESSION['adminlvl'] == 10) {
        $query = $pdo->prepare("UPDATE `users` SET `adminlvl` = '0' WHERE `user` = :username");
        $query->execute(array(
            ':username' => $forumname
        ));
        if($query->rowCount() > 0) {
            Logs(2, "Successfully kicked " . $forumname . " from the staff team");
            GetMessage("Congratulation!", "Successfully kicked " . $forumname . " from the staff team!", 3);
        }
        else {
            GetMessage("Oh snap!", "Failed to kick user from the staff team!", 1);
        }
    } 
    else {
        GetMessage("Oops!", "Unable to remove ".$forumname." from the staff team", 1);
    }
}
else {
    GetMessage("Oh snap!", "UCP name is empty!", 1);
}
echo "<meta http-equiv='refresh' content='2'>";
}

第二个function RemoveStaff()正在工作。但是第一个不起作用。我很感激谁能找出问题所在。