loggedIn() function?

[conker87]

At the moment, when my members login their details get put into session variables, that's fine - works great.

 

However, what annoys me is that whenever I want to validation someone being logged in, I have to use the following in each and every place this happens:

<?php
if (isset($_SESSION['username'], $_SESSION['password']))
     {
      $check = mysql_num_rows(mysql_query("SELECT * FROM `members_table` WHERE `username_field` = '".$_SESSION['username']."' AND `password_field` ='".$_SESSION['password']."'"));
       if ($check == 0)
        {
         echo "<title>love v4 // login: error</title><h2>Invalid Username/Password.</h2>";
        }
       else if ($check == 1)
        {
         
        }
     }
?>

 

I'm wondering if I could make this into some sort of function to go into my global functions page. Such as the following:

 

<?php
function loveLogged()
{
  if (isset($_SESSION['username'], $_SESSION['password']))
     {
      $check = mysql_num_rows(mysql_query("SELECT * FROM `members_table` WHERE `username_field` = '".$_SESSION['username']."' AND `password_field` ='".$_SESSION['password']."'"));
       if ($check == 0)
        {
         return false;
        }
       else if ($check == 1)
        {
         return true;
        }
     }
}
?>

 

With the code in the page being:

 

<?php
if (loveLogged())
{
  //Do true stuff.
}
?>

 

Would this work, and if not, how would I change it for it to work?

[Trium918]

Try and see if it will work! If not, come back.