PHP传递值

Im having trouble passing the value id in my code to edit.php.

In displaynews i print out articles from the database. It also creates a link that redirects me to edit.php and sending the $id value with it.

Link to displaynews function

http://snipt.org/zhla8

Here's where im having trouble

      <h3>EDIT NEWS ARTICLE</h3>
      <form id="EditNews" name="EditNews" method="POST" action="edit.php">
      <textarea name="editnewstext"><?php $news=Textarea(1);echo $news ?></textarea> <!--HERE i need to replace the 1 with id passing in displaynews -->
                        <input type="submit" name="Edit_News" id="Edit_News">

                        <?php
                       include 'db.php';
                       include'editnewsarticle.php';
                             if(isset($_POST['Edit_News']))
                          {

                                $content= $_POST['editnewstext'];
                  geteditnews(1,$content); //<!--HERE i need to replace the 1 with idpassing in displaynews -->
                                Header("location:Home.php");

                          }   

Link to Edit.php page

http://snipt.org/zhkj8

Link to GetnewsTextarea function

http://snipt.org/zhlb9

Link To editnewsarticle function

http://snipt.org/zhki2

Please dont comment on how the mysql extension is depreciated and that my code is open for sql injections. Thanks in advance

EDIT: Here's the solution

                       if(isset($_GET['id']))
                        {
                        $id = $_GET['id'];
                        $data = mysql_query("SELECT * FROM news WHERE id = '$id' "); 
                    }
                        ?>

Does these changes in edit.php help?

if (isset($_POST['id']))
    $id = $_POST['id'];

<?php $news=Textarea($id);echo $news ?>  

geteditnews($id, $content); 

Add a hidden field for the id right after the form tag. As such:

<form id="EditNews" name="EditNews" method="POST" action="edit.php">
    <input type="hidden" name="id" value="<?php echo $id; ?>">