Question

I have a page called list.php which retrieves from database and shows all the student names with their respective ids in a list. In raw php, this is how I have done this-

include("connect.php");
$query = "SELECT * FROM marks ";
$result = mysql_query($query);
$num = mysql_num_rows ($result);
mysql_close();

if ($num > 0 ) {
$i=0;
while ($i < $num) {
$studentname = mysql_result($result,$i,"studentname");
$studentid = mysql_result($result,$i,"studentid");  
?>
And then---

<a href="studentprofile.php?studentid=<? echo $studentid?>"><? echo $studentname ?></a>
<?
++$i; } } else { echo "No Record Found"; }

?>

When a user clicks on any of the student names, it takes the user to the page of that particular student and in that page I have a code like following-

include("connect.php");
$number = $_GET['studentid'];

$qP = "SELECT * FROM student WHERE studentid = '$number' ";
$rsP = mysql_query($qP);
$row = mysql_fetch_array($rsP);
extract($row);
$studentid = trim($studentid);
$studentname = trim($studentname);
$studentgender = trim($studentgender);

The above code is working just fine. Now as far as I know $_get is disable in Codeigniter. But how to do the exact same thing that I mentioned above in codeigniter if $_get is disabled ? I went through some tutorials on alternative way of using $_get, but I didn’t understand those well. Would you please kindly help? Thanks in Advance 🙂

Answer 1

The usage of $_GET is discouraged in CI.

The simpliest way to rewrite that files is not using $_GET. Just add method='post' to your forms and tell your ajax requests to use post, if you have any. Use $_POST in PHP instead of $_GET.

If you are absolutely sure you need get requests passing parameters, you have to enable query strings. You can do it in your CI’s config file:

$config['enable_query_strings'] = TRUE;

See section ‘Enabling query strings’ for details. But enabling query strings will cause Url helper and other helpers that generate URLs to malfunction.

So my suggestion is to use POST requests.

UPDATE Replace

<a href="studentprofile.php?studentid=<? echo $studentid?>"><? echo $studentname ?></a>

With

<a href="studentprofile.php?studentid=<? echo site_url("yourcontroller/studentprofile/$studentid")?>"><? echo $studentname ?></a>

Create method studentprofile:

<?php
class Yourcontroller extends CI_Controller {

public function studentprofile($id)
{
        include("connect.php");
        $number = $id;

        $qP = "SELECT * FROM student WHERE studentid = '$number' ";
        $rsP = mysql_query($qP);
        $row = mysql_fetch_array($rsP);
        extract($row);
        $studentid = trim($studentid);
        $studentname = trim($studentname);
        $studentgender = trim($studentgender);
        // and so on...
}
}
?>