使用会话的php消息

Question

I am try to develop flash message using sessions in php suppose on successfully delete query I am setting

$_SESSION["msg"]="record deleted successfully";
header("location:index.php");

and I have the following script on all pages which checks if msg variable is available it echo its value as below

if(isset($_SESSION["msg"]) && !empty($_SESSION["msg"]))
        {
            $msg=$_SESSION["msg"];
            echo "<div class='msgbox'>".$msg."</div>";
            unset($_SESSION['msg']); //I have issue with this line.
        }

if I comment

unset($_SESSION['msg']);

message is being displayed, but with this line message is not being displayed
what am I doing wrong, or any alternative.

Answer 1

You can simply set your session empty or null instead of unset it. Just do:

$_SESSION['msg']=NULL;

Or

$_SESSION['msg']="";