//already connected & selected database
//If cmd has not been initialized
if(!isset($cmd)) 
{
   $result = mysql_query("select * from webpages order by id"); 
   
   while($r=mysql_fetch_array($result)) 
   { 
      $pagedesciption=$r["pagedesciption"];
      $keywords=$r["keywords"];
      $pagebody=$r["pagebody"];
      $pagename=$r["pagename"];
      $id=$r["id"];
     
      echo "$pagename - <a href='edit.php?cmd=edit&id=$id'>Edit</a>";
      echo "<br>";
    }
}

if($_GET["cmd"]=="edit" || $_POST["cmd"]=="edit")
{
   if (!isset($_POST["submit"]))
   {
      $id = $_GET["id"];
      $sql = "SELECT * FROM webpages WHERE id=$id";
      $result = mysql_query($sql);        
      $myrow = mysql_fetch_array($result);
      echo "<form action=save.php method=post>";
      echo "<input type=hidden name=id value=$myrow[$id]>";
      echo "Page Name:";
      echo "<INPUT TYPE=TEXT NAME=title VALUE=$myrow[pagename] SIZE=30><br>";
      echo "Keywords:";
      echo "<INPUT TYPE=TEXT NAME=keywords VALUE=$myrow[keywords] SIZE=30><br>";
      echo "Description:";
      echo "<INPUT TYPE=TEXT NAME=pagedesciption VALUE=$myrow[pagedesciption] SIZE=30><br>";
      echo "Page Body:";
      echo "<TEXTAREA NAME=pagebody ROWS=10 COLS=30>$myrow[pagebody]</TEXTAREA><br>";
      echo "<input type=hidden name=cmd value=edit>";
      echo "<input type=submit name=submit value=submit>";
      echo "</form>";
   }
}
////////////
save.php
////////////
   if ($_POST["$submit"])
   {
      $pagename = $_POST["pagename"];
	  $pagedesciption= $_POST["pagedesciption"];
 	  $pagebody = $_POST["pagebody"];
	  $keywords = $_POST["keywords"];
	  	  
      $sql = "UPDATE webpages SET pagename='$pagename',pagedesciption='$pagedesciption',pagebody='$pagebody',keywords='$keywords', WHERE id=$id";
      $result = mysql_query($sql);
	}
	include("edit.php");