MySQL Select Query & use it globally(Multiple PHP pages) - php

Question

I'm currently pulling the data from MySQL Database with the current code Example 1
function User_Details($uid){
$uid = mysql_real_escape_string($uid);
$query = mysql_query("SELECT uid,password,email,nickname,username,profile_pic,friend_count FROM users WHERE uid='$uid' AND status='1'");
$data = mysql_fetch_array($query);
return $data;
}
I'd like to use this query across multiple PHP pages without having to write a foreach loop for every PHP file.
Currently I have it inside a class called class Wall_Updates { }, and I try to print it with the following code: Example1 : < ?php echo $data['username']; ? >.
The class Wall_Updates is being called on the header which should also include the User_Details, so the only issue is how do I print with just the following PHP example I gave above without the need of a loop.
The class words with single fielded queries such as Example 2 $face = $Wall->Profile_Pic($msg_uid); and if I echo $face it'll show my current Profile_Pic which is a single query.
Example 3 of how I don't want to do as it's very messy.
<?php
if ($uid) {
$updatesarray = $Wall->Updates($uid);
}
if ($updatesarray) {
foreach ($updatesarray as $data) {
$username = $data['username'];
?>
#HTML CODE GOES HERE
<?php } ?>
So I'd like my query to pull multiple fields from users and use it across any page without a foreach.
PS: I'm sorry if it's not making sense, I've been complained a lot for not showing what I've tried and I hope to not get complained about it this time, I appreciate for looking at my question.

Answer 1

you need to issue the "or die" sql command EVERYWHERE otherwise you have no idea why it failed.
http://pastie.org/7897405
you have a column name wrong (look at the last line of the pastie
also, get off of the mysql_ stuff and get into pdo. you should know better chump !