PHP search page help please!!

[Collegeboox]

I have code for a perv. and next links at the bottom of my search page. Which shows the next ten results however when the next link is clicked the page says please fill in all fields (as if the search box was left empty and the search button was clicked... please help me figure this out...

 

 

<?php


  // Get the search variable from URL

  $var = $_GET['search'];
  $searchtype = $_GET['searchtype'];
  $isbn = "ISBN";
  $school = "School";
  $title = "Title";
  $subject = "Subject";

  $trimmed = trim($var); //trim whitespace from the stored variable

// rows to return
$limit=10; 

// check for an empty string and display a message.
if ($trimmed == "")
  {
  echo "<p>Please enter a search...</p>";
  exit;
  }

// check for a search parameter
if (!isset($var))
  {
  echo "<p>We dont seem to have a search parameter!</p>";
  exit;
  }

//connect to your database
$connect = mysql_connect("db","user","pass") or die("Not connected");

//specify database 
mysql_select_db("user") or die("could not log in");

if ($searchtype == ($title))

{

	// Build SQL Query  
	$query = "select * from boox where name like \"%$trimmed%\"  
		 order by name"; // EDIT HERE and specify your table and field names for the SQL query
}
elseif ($searchtype == ($school))
{
		// Build SQL Query  
	$query = "select * from boox where school like \"%$trimmed%\"  
		 order by school"; // EDIT HERE and specify your table and field names for the SQL query

}
elseif ($searchtype == ($isbn))

{
	// Build SQL Query  
	$query = "select * from boox where isbn like \"%$trimmed%\"  
		 order by isbn"; // EDIT HERE and specify your table and field names for the SQL query


}
elseif ($searchtype == ($subject))

{
	// Build SQL Query  
	$query = "select * from boox where subject like \"%$trimmed%\"  
		 order by subject"; // EDIT HERE and specify your table and field names for the SQL query

}
$numresults=mysql_query($query);
$numrows=mysql_num_rows($numresults);

// If we have no results, offer a google search as an alternative

if ($numrows == 0)
  {
  echo "<h4>Results</h4>";
  echo "<p>Sorry, your search: "" . $trimmed . "" returned zero results</p>";

// google
echo "<p><a href=\"http://www.google.com/search?q=" 
  . $trimmed . "\" target=\"_blank\" title=\"Look up 
  " . $trimmed . " on Google\">Click here</a> to try the 
  search on google</p>";
  }

// next determine if s has been passed to script, if not use 0
  if (empty($s)) {
  $s=0;
  }

// get results
  $query .= " limit $s,$limit";
  $result = mysql_query($query) or die("Couldn't execute query");

// display what the person searched for
echo "<p>You searched for: "" . $var . "" in "" . $searchtype ."" </p>";

// begin to show results set
echo "Results  ";
$count = 1 + $s ;

if ($searchtype = $title)

{
// now you can display the results returned
  while ($row= mysql_fetch_array($result)) {
  $title = $row["name"];
  
  
		 echo "$count. $title &nbsp
	 </br><table width='297' border='1' align='center'>
  <tr>
    <td width='152'>Book Title:</td>
    <td width='129'>$row[name]</td>
  </tr>
  <tr>
    <td>Author:</td>
    <td>$row[author]</td>
  </tr>
    <tr>
    <td>ISBN#</td>
    <td>$row[isbn]</td>
  </tr>
  <tr>
    <td>Date Posted:</td>
    <td>$row[date]</td>
  </tr>
  <tr>
    <td>Posted By:</td>
    <td><a href='backpack.php?usr=$row[username]'>$row[username]</a></td>
  </tr>
  <tr>
    <td>School:</td>
    <td>$row[school]</td>
  </tr>
</table></br>";
		 $count++ ;
		 }
}
elseif ($searchtype = $school)
{
	// now you can display the results returned
	while ($row= mysql_fetch_array($result)) {
		$title = $row["school"];
		 echo "$count. $title" ;
		 $count++ ;
		 }

}
	elseif ($searchtype = $subject)
{
	// now you can display the results returned
	while ($row= mysql_fetch_array($result)) {
		$title = $row["subject"];
	 echo "$count. $title" ;
		 $count++ ;
		 }

}
	elseif ($searchtype = $isbn)
{
	// now you can display the results returned
	while ($row= mysql_fetch_array($result)) {
		$title = $row["isbn"];
		 echo "$count. $title" ;
		 $count++ ;
		 }

}



$currPage = (($s/$limit) + 1);

//break before paging
  echo "<br />";

  // next we need to do the links to other results
  if ($s>=1) { // bypass PREV link if s is 0
  $prevs=($s-$limit);
  print " <a href=\"$PHP_SELF?s=$prevs&q=$var\"><< 
  Prev 10</a>&nbsp ";
  }

// calculate number of pages needing links
  $pages=intval($numrows/$limit);

// $pages now contains int of pages needed unless there is a remainder from division

  if ($numrows%$limit) {
  // has remainder so add one page
  $pages++;
  }

// check to see if last page
  if (!((($s+$limit)/$limit)==$pages) && $pages!=1) {

  // not last page so give NEXT link
  $news=$s+$limit;

  echo " <a href=\"$PHP_SELF?s=$news&search?q=$var\">Next 10 >></a>";
  }

$a = $s + ($limit) ;
  if ($a > $numrows) { $a = $numrows ; }
  $b = $s + 1 ;
  echo "<p>Showing results $b to $a of $numrows</p>";
  
?>

[ruddie]

Hmm, okay - I find your code rather unpractical..

 

I got this on my website to, I have a 'searchForm.php' file, which is basically the form used.

This form is submited to:

'search.php'

 

This will then place it in a get variable (although I believe you can somehow do that with javascript to..

Which then redirects you to serachResults.php

 

And here all the results are echo'ed..

 

If you want to check out my code, send me a message with your email or something similar, and I can send you the few files over.