Hi, I get this code somewhere from the web and wanted to implement it on my website.
This code is basicly doing something like facebook's posting time.

But in the code, there is the $session_time that i need to set first.
How do i do this using the PHP?

Thank You for helping :)

oh sorry,I forgot to put the code which I got from the net,
this is the code :

<?php
function time_stamp($session_time) 
{ 
 
$time_difference = time() - $session_time ; 
$seconds = $time_difference ; 
$minutes = round($time_difference / 60 );
$hours = round($time_difference / 3600 ); 
$days = round($time_difference / 86400 ); 
$weeks = round($time_difference / 604800 ); 
$months = round($time_difference / 2419200 ); 
$years = round($time_difference / 29030400 ); 

if($seconds <= 60)
{
echo"$seconds seconds ago"; 
}
else if($minutes <=60)
{
   if($minutes==1)
   {
     echo"one minute ago"; 
    }
   else
   {
   echo"$minutes minutes ago"; 
   }
}
else if($hours <=24)
{
   if($hours==1)
   {
   echo"one hour ago";
   }
  else
  {
  echo"$hours hours ago";
  }
}
else if($days <=7)
{
  if($days==1)
   {
   echo"one day ago";
   }
  else
  {
  echo"$days days ago";
  }


  
}
else if($weeks <=4)
{
  if($weeks==1)
   {
   echo"one week ago";
   }
  else
  {
  echo"$weeks weeks ago";
  }
 }
else if($months <=12)
{
   if($months==1)
   {
   echo"one month ago";
   }
  else
  {
  echo"$months months ago";
  }
 
   
}

else
{
if($years==1)
   {
   echo"one year ago";
   }
  else
  {
  echo"$years years ago";
  }


}
 


} 
$session_time ="1264326122";
//$session_time=time();

echo "<h1>"; 
echo time_stamp($session_time);
echo "</h1>"; 

?>