Record Set Paging with PHP (RSP)

@ $rpp; //Records Per Page
@ $cps; //Current Page Starting row number
@ $lps; //Last Page Starting row number
@ $a; //will be used to print the starting row number that is shown in the page
@ $b; //will be used to print the ending row number that is shown in the page
/////////////////////////////////////////////////////////////////////////////////
//Database connection
/////////////////////////////////////////////////////////////////////////////////
$user="";
$password="";
$database="ehsan";

@mysql_connect("localhost",$user,$password);

@mysql_select_db($database) or die( "Unable to select database");
/////////////////////////////////////////////////////////////////////////////////

/////////////////////////////////////////////////////////////////////////////////
//Following IF Statement is used to make sure when the page is loaded for the
//first time, Current Page's Starting row number is 0, i.e. 1st row from the
//table is being printed. It will change as the user will click on next.
/////////////////////////////////////////////////////////////////////////////////
if(empty($_GET["cps"]))
{
$cps = "0";
}
else
{
$cps = $_GET["cps"];
}
/////////////////////////////////////////////////////////////////////////////////

$a = $cps+1;

$rpp = "10";

$lps = $cps - $rpp; //Calculating the starting row number for previous page

/////////////////////////////////////////////////////////////////////////////////
//Following IF Statement is used to make sure whether a link to Previous page is
//needed or not. If the user is viewing the first set of data then the link will
//be disabled, if on the next set then it will carry the $lps in its link and
//enable the link
if ($cps <> 0)
{
$prv = "Previous";
}
else
{
$prv = "Previous";
}
/////////////////////////////////////////////////////////////////////////////////

/////////////////////////////////////////////////////////////////////////////////
//Following SQL Statement uses SQL_CALC_FOUND_ROWS function to calculate total
//number of rows found by the query excluding the limit function added at the
//end of the SQL statement. This is followed by second query with FOUND_ROWS()
//function which actually gives out the number of rows found.
/////////////////////////////////////////////////////////////////////////////////
$q="Select SQL_CALC_FOUND_ROWS * from paging limit $cps, $rpp";
$rs=mysql_query($q) or die(mysql_error());
$nr = mysql_num_rows($rs); //Number of rows found with LIMIT in action

$q0="Select FOUND_ROWS()";
$rs0=mysql_query($q0) or die(mysql_error());
$row0=mysql_fetch_array($rs0);
$nr0 = $row0["FOUND_ROWS()"]; //Number of rows found without LIMIT in action

/////////////////////////////////////////////////////////////////////////////////
//Following IF Statement is used to determine whether the user has reached the
//last page of the records. For example, if we have 27 rows to print and we show
//10 rows per page, then on the third and the last page it will show seven rows
//and will say at the top that SHOWING RECORDS FROM 21 to 27. If the following
//validator is not used then it shows SHOWING RECORDS FROM 21 to 30.
/////////////////////////////////////////////////////////////////////////////////
if (($nr0 < 10) || ($nr < 10))
{
$b = $nr0;
}
else
{
$b = ($cps) + $rpp;
}
/////////////////////////////////////////////////////////////////////////////////

?>








while ($row=mysql_fetch_array($rs))
{
/////////////////////////////////////////////////////////////////////////////////
//This is used to show the serial number on the page as well as to count it up
//so that we can get the next page's starting row number when it exits the while
//loop after fullfilling the above SQL criteria.
/////////////////////////////////////////////////////////////////////////////////
$cps = $cps +1;

$val=$row["name"];
echo "";
}

echo "

echo "$nr0 Records Found"; ?>
echo "Showing Records from $a to $b"; ?>
SL#	Value
$cps	$val
$prv"; ///////////////////////////////////////////////////////////////////////////////// //Following IF Statement is used to determine whether the Next link will be //enabled or disabled. If the user has reached the last page of the record, then //the Next link will be disabled. ///////////////////////////////////////////////////////////////////////////////// if ($cps == $nr0) { echo " | Next"; } else { if ($nr0 > 5) { echo " | Next"; } } ///////////////////////////////////////////////////////////////////////////////// ?>