php dynamic pagination logical error - php

Question

I am developing a page where a user can enter the limit of the table in pagination. While I am doing this the data I enter is taken and query is performed according to that. But as I click on another page of that table the value is reset to default which I set to 5 here.
<?php session_start(); ?>
Submit New record<br><br>
<form method="post">
<input type="text" name="dlimit">
<input type="submit" name="submit">
</form>
<?php
$database = 'test';
require 'connection.php';
if(!isset($_POST['submit']))
{
$limit = 5;
}
else
{
$dlimit = $_POST['dlimit'];
$limit = $dlimit;
}
#$id = $_GET['id'];
if($id==""||$id==null)
{
$page=0;
}
else
{
$page = ($id*$limit)-$limit;
}
$qq ="select * from record limit $page,$limit";
$result = $link -> query($qq);
?>
<table border="1"><th>ID</th>
<th>Name</th>
<th>qualification</th>
<th>address</th>
</tr>
<?php
while ($row = mysqli_fetch_object($result))
{
?>
<tr>
<td><?php echo $row->id ?></td>
<td><?php echo $row->user_name ?></td>
<td><?php echo $row->qualification ?></td>
<td><?php echo $row->address ?></td>
</tr>
<?php
}
?>
</table>
<?php
$query = "SELECT * FROM record";
$result = $link -> query($query);
$rows = mysqli_num_rows($result);
$rr = $rows/$limit;
$rr = ceil($rr);
for ($i=1; $i<=$rr ; $i++) {
?>
<?php echo #$i;?>
<?php
}
mysqli_close($link)
?>
Run the above code and check. If my words are not clear to you.

Answer 1

I think that the $_POST data is missing. You click on the link, so the new page will open without POST infos.
You can change this, if you switch to GET instead of POST. You can add the GET parameter to your <a href=""> Tag.
For example
<a href="pagination.php?page=5&dlimit=100
Also try to avoid the #error suppression and don't pass the $_POST/$_GET Vars directly to your sql string. Bad people could use it for SQL Injections

Answer 2

So I got the answer for my question. I am posting it here if anyone need it on later basis.
Submit New record<br><br>
<form method="get">
<input type="text" name="dlimit">
<input type="submit" name="submit">
</form>
<?php
$database = 'test';
require 'connection.php';
if(empty($_GET['dlimit']) && !isset($_GET['submit']) && empty($_GET['n']))
{
$limit = 5;
global $limit;
}
else
{
if (isset($_GET['dlimit']))
{
$limit = $_GET['dlimit'];
}
else
{
#$limit = $_GET['n'];
}
global $limit;
}
if(!isset($_GET['submit'])&& empty($_GET['n']))
{
$n=5;
global $n;
}
else
{
if(empty($_GET['dlimit']))
{
$n=$_GET['n'];
}
else
{
$n=$_GET['dlimit'];
}
global $n;
}
#$id = $_GET['id'];
if($id==""||$id==null)
{
$page=0;
}
else
{
$page = ($id*$limit)-$limit;
}
$qq ="select * from record limit $page,$limit";
$result = $link -> query($qq);
?>
<table border="1"><th>ID</th>
<th>Name</th>
<th>qualification</th>
<th>address</th>
</tr>
<?php
while ($row = mysqli_fetch_object($result))
{
?>
<tr>
<td><?php echo $row->id ?></td>
<td><?php echo $row->user_name ?></td>
<td><?php echo $row->qualification ?></td>
<td><?php echo $row->address ?></td>
</tr>
<?php
}
?>
</table>
<?php
if (!isset($_GET['submit']) && empty($_GET['n'])) {
$n = 5;
global $n;
}
else
{
if (empty($_GET['dlimit'])) {
$n = $_GET['n'];
}
else
{
$n = $_GET['dlimit'];
}
global $n;
}
$query = "SELECT * FROM record";
$result = $link -> query($query);
$rows = mysqli_num_rows($result);
$rr = $rows/$limit;
$rr = ceil($rr);
for ($i=1; $i<=$rr ; $i++) {
?>
<?php echo #$i;?>
<?php
}
mysqli_close($link)
?>
Again I am mentioning here that files which I included here are just connection where I filled my connection details and other is my record entry file where data is entered by the user.