Say I have 3 records of same users with IDs 2,4,7,9 and I want to be able to go from one to another by navigation via next/previous links. The problem is, I don't know how to fetch 1 record per page with link redirecting to same page.
So when I have record with ID 4, If I click previous it must redirect me to same page with record of having ID 2 and If I click next it should take me to 7.Please help with redirection and displaying one record per page.
So far I have done:
<?php
$query1 = "SELECT * FROM table2 WHERE id='{$user}' order by srno desc " ;
$result1=mysql_query($query1,$con);
if (!($result1) )
{
die('Error: ' . mysql_error($con));
}
else
{
$values1= mysql_fetch_array($result1);
}
mysql_close($con);
?>
Do I need to change query to :
$query1 = "SELECT * FROM table2 WHERE id='{$user}' order by srno desc LIMIT 1 OFFSET 1" ;
I'd use something like this for prev/next
links...
html
<a href="?action=prev&id=<?php echo $values['id'] ?>">prev</a>
<a href="?action=next&id=<?php echo $values['id'] ?>">next</a>
php
<?php
if(!is_numeric($_GET['id'] || $_GET['id'] < 1)
throw new \Exception('Illegal id value');
if(!isset($_GET['action']))
$_GET['action'] = 'view';
switch($_GET['action']){
case 'prev':
$q = "SELECT * FROM table2 WHERE id<'{$_GET['id']}' ORDER BY id DESC LIMIT 1" ;
break;
case 'next':
$q = "SELECT * FROM table2 WHERE id>'{$_GET['id']}' ORDER BY id ASC LIMIT 1" ;
break;
case 'view':
$q = "SELECT * FROM table2 WHERE id='{$_GET['id']}'";
break;
default:
throw new \Exception('Illegal action value');
}
$result1=mysql_query($query1,$con);
if (!($result1) )
{
die('Error: ' . mysql_error($con));
}
else
{
$values1= mysql_fetch_array($result1);
}
mysql_close($con);
I didn't understand what srno
is, and how did you get your user id
in $user
var, so I left them out. Code should be functional nontheless, once you understand it, you can use it to rewrite your own.
if you displaying one record per page you may simply use pagination. You can get a pagination example from http://www.tutorialspoint.com/php/mysql_paging_php.htm
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