Pagination on sql fetched row in php - php

Question

I want to use pagination on sql fetched row. I am using this code:
<?php
$rec_limit = 4;
$sql = "SELECT count(id) FROM wp_wct8 ";
$retval = mysql_query( $sql);
if(! $retval ) {
die('Could not get data: ' . mysql_error());
}
$row = mysql_fetch_array($retval, MYSQL_NUM );
$rec_count = $row[0];
if( isset($_GET{'page'} ) ) {
$page = $_GET{'page'} + 1;
$offset = $rec_limit * $page ;
}else {
$page = 0;
$offset = 0;
}
$left_rec = $rec_count - ($page * $rec_limit);
$sql = "SELECT id, name, insurance ".
"FROM wp_wct8 ".
"LIMIT $offset, $rec_limit";
$retval = mysql_query( $sql);
if(! $retval ) {
die('Could not get data: ' . mysql_error());
}
while ($b = mysql_fetch_array($retval)){
echo $b['name'];
echo $b['insurance'];
}
if( $page > 0 ) {
$last = $page - 2;
echo "Last 4 Records |";
echo "Next 4 Records";
}else if( $page == 0 ) {
echo "Next 4 Records";
}else if( $left_rec < $rec_limit ) {
$last = $page - 2;
echo "Last 4 Records";
}
?>
but pagination not working... when i click on show next 4 records it is showing same records not next..please helpme... thanks in advance

Answer 1

I don't recommend you to put this code online as it's vulnerable to SQL injection. (Use prepared statements with PDO instead or at least, escape your input in the SQL query.)
I assume the error are the whitespaces in your links. So try removing the whitespaces, e.g. echo "Last 4 Records |";