Link to populate form data from query - php

Question

I have a form that I need to load data in when the user selects a title from a list. When I save a record, I query the database and put the title of the record in a list, with an Edit and Delete link. I'm having difficulty adding an "a href" to the Edit button, and getting the record data to load in the form.
Here's the code for the query:
<div class="content">
<ul class="nav">
<div>Home</div>
<div class="container">
<?php
include('connect-db.php');
$result = mysql_query("SELECT * FROM 'my_table' ORDER BY id ASC");
while($row = mysql_fetch_array($result))
{
$id=$row['id'];
$title=$row['title'];
?>
<div class="show">
<Table width="300" Border="0">
<TR><TD width="260"><?php echo $title; ?></TD>
<TD width="20">EDIT</TD>
<TD width="20">DELETE
</TD></TR>
</Table>
</div>
<?php
}
?>
</div>
Here's the code for the form:
<form name="myForm" action="process.php" method="post">
<div>
<?php
include"connect-db.php";
$sql="SELECT * FROM my_table";
$result=mysql_query($sql);
$rows=mysql_fetch_array($result);
?>
<input type="text" name="title" id="title" value="<? echo $rows['title']; ?>">
<textarea name="chords" id="chords" rows="1" cols="16"><? echo $rows['chords']; ?></textarea>
<textarea name="lyrics" id="lyrics" rows="4" cols="16"><? echo $rows['lyrics']; ?></textarea>

Answer 1

If 'process.php' should show the results of 1 record from the database, you need to change the href of the link and pass the ID to process.php as a GET parameter in the URL. In that page, you need to query using that ID parameter.
change links to:
EDIT
...
DELETE
In process.php, you need to add some if/else statements:
if(isset($_GET["action"]) && isset($_GET["id"]) && is_numeric($_GET["id"])) {
include"connect-db.php";
$sql="SELECT * FROM my_table WHERE id = " . $_GET["id"];
$result=mysql_query($sql);
$rows=mysql_fetch_array($result);
if($_GET["action"] == "edit") {
// output editing form
}
else if($_GET["action"] == "delete") {
// delete
}
}
You could also use different pages for editing and deleting, change your link accordingly if that's what you want. You might want to have a confirmation section before deleting too...
Please note that passing data like this in the URL makes it very vulnerable to hacking. One could easily change the ID or the action.
Also, you need to migrate your code to use PHP's mysqli function instead of mysql. The mysql ones are deprecated...