Mysql 查询对多变量结果进行分页

我想在分页结果中对我的多术语sql查询进行分页，第1页工作正常，但第2页..上一页或下一页不传递变量：

<?php

include "db.inc.php";
if (isset($_GET["page"])) { $page  = $_GET["page"]; } else { $page=1; }; 
$start_from = ($page-1) * 15;
$term1 = $_REQUEST['term1'];
$term2 = $_REQUEST['term2'];
$term3 = $_REQUEST['term3'];
$term4 = $_REQUEST['term4'];
$sql ="SELECT * FROM cdrequests WHERE pname  LIKE '%$term1%' AND date LIKE '%$term2%' AND date LIKE '%$term3%' AND dept LIKE '%$term4%' LIMIT $start_from, 15";

$rs_result = mysql_query ($sql);
$num_rows = mysql_num_rows($rs_result);
$query = mysql_query("SELECT * FROM cdrequests WHERE pname  LIKE '%$term1%' AND date LIKE '%$term2%' AND date LIKE '%$term3%' AND dept LIKE '%$term4%'"); 
$number=mysql_num_rows($query); 
print "<font size='"5'" color=white><b>CD Requests</b></font> </P>";

print "<table class='"table1'"    STYLE='"word-wrap:break-word;'"   width=1100 border='"1'"  bordercolor='"#000000'" bgcolor='"E6E6E6'" style='"border-collapse: collapse'"   cellpadding='"2'" cellspacing='"1'"> .............
?>
<?php 
$term1 = $_REQUEST['term1'];
$term2 = $_REQUEST['term2'];
$term3 = $_REQUEST['term3'];
$term4 = $_REQUEST['term4'];

$sql = "SELECT COUNT(id) FROM cdrequests WHERE pname  LIKE '%$term1%' AND date LIKE '%$term2%' AND date LIKE '%$term3%' AND dept LIKE '%$term4%'";  
$rs_result = mysql_query($sql); 
$row = mysql_fetch_row($rs_result); 
$total_records = $row[0];
$total_pages = ceil($total_records / 15);

/******  build the pagination links ******/
// range of num links to show
$range = 3;

// if not on page 1, don't show back links
if ($page > 1) {
   // show << link to go back to page 1
   echo " <a href='search2.php?page=1'><b>First</b></a> ";
   // get previous page num
   $prev = $page - 1;
   // show < link to go back to 1 page
   echo " <a href='search2.php?page=$prev'><b>&laquo;</b></a> ";
} // end if 

// loop to show links to range of pages around current page
for ($x = ($page - $range); $x < (($page + $range) + 1); $x++) {
   // if it's a valid page number...
   if (($x > 0) && ($x <= $total_pages)) {
      // if we're on current page...
      if ($x == $page) {
         // 'highlight' it but don't make a link
         echo " <font  size='5' color=yellow><b> $x </b></font> ";
      // if not current page...
      } else {
         // make it a link
         echo " <a href='search2.php?page=$x'>$x</a> ";
      } // end else
   } // end if 
} // end for

// if not on last page, show forward and last page links        
if ($page != $total_pages) {
   // get next page
   $next = $page + 1;
    // echo forward link for next page 
   echo " <a href='search2.php?page=$next'><b>&raquo;</b></a> ";
   // echo forward link for lastpage
   echo " <a href='search2.php?page=$total_pages'><b>Last</b></a> ";
} // end if
/****** end build pagination links ******/
echo "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<font size='4' color=white>Total Records</font> <font size='5' color=yellow><b>$number</b></font>";
echo '</table>';
?>

不确定我需要在echo " <a href='search2.php?page=$next'><b>&raquo;</b></a> ";中输入什么才能调用条款

谢谢