Help Error PHP

[Li1M0ST3Rz]

I know i havent been on for a while and i haven't code for a while so help me out.
- func.php

<?php
$min=1;
$max=60000;
$user1 = $_SESSION['user'];
$req = mysql_query("SELECT * FROM user WHERE username='$user1'");
                while($rows = mysql_fetch_array($req))
                if($rows['rank'] == 5):
            echo '<a href="./adm/login.php">Control Panel</a>';
                endif;
$result = mysql_query("SELECT * FROM maintenance");
                while($row = mysql_fetch_array($result))
                if($row['status'] == 0):
                header("Location: ./main.php");
            endif;
function timeAgo($time_ago){
    $t = mysql_query("SELECT * FROM message WHERE to = '".$_SESSION['user']."'") or die(mysql_error());
                $fetch = mysql_fetch_assoc($t) or die(mysql_error());
                while($time = mysql_fetch_array($t))
                {
$cur_time     = time();
$time_ago = $time["time"];
$time_elapsed     = $cur_time - $time_ago;
$seconds     = $time_elapsed ;
$minutes     = round($time_elapsed / 60 );
$hours         = round($time_elapsed / 3600);
$days         = round($time_elapsed / 86400 );
$weeks         = round($time_elapsed / 604800);
$months     = round($time_elapsed / 2600640 );
$years         = round($time_elapsed / 31207680 );
// Seconds
if($seconds <= 60){
    echo "$seconds seconds ago";
}
//Minutes
else if($minutes <=60){
    if($minutes==1){
        echo "one minute ago";
    }
    else{
        echo "$minutes minutes ago";
    }
}
//Hours
else if($hours <=24){
    if($hours==1){
        echo "an hour ago";
    }else{
        echo "$hours hours ago";
    }
}
//Days
else if($days <= 7){
    if($days==1){
        echo "yesterday";
    }else{
        echo "$days days ago";
    }
}
//Weeks
else if($weeks <= 4.3){
    if($weeks==1){
        echo "a week ago";
    }else{
        echo "$weeks weeks ago";
    }
}
//Months
else if($months <=12){
    if($months==1){
        echo "a month ago";
    }else{
        echo "$months months ago";
    }
}
//Years
else{
    if($years==1){
        echo "one year ago";
    }else{
        echo "$years years ago";
    }
}
}
}
function getRandomString($length = 24) {
    $validCharacters = "abcdefghijklmnopqrstuxyvwzABCDEFGHIJKLMNOPQRSTUXYVWZ+-*#&@!?";
    $validCharNumber = strlen($validCharacters);
    $result = "";
    for ($i = 0; $i < $length; $i++) {
        $index = mt_rand(0, $validCharNumber - 1);
        $result .= $validCharacters[$index];
    }
    return $result;
}
?>