[SOLVED] PHP/MySQL Search Defective... on certain servers

[itsinmyhead]

So, I've got a classified ad search on our website here: http://www.adkpennysaver.com/search.html

 

It's the same code (only had to change the database address/username/password info) as this test page: http://www.phenixdesigns.net/psaver/test/search.php

 

It worked the first day I uploaded it to the site.  The next day, it wasn't working properly.  There are some weird things happening - made even weirder because nothing was changed in the code.

 

When you perform a search that has more than one page of results, and you click "Next 10," nothing advances.  The page reloads and all, but it displays the same results as were there before.  I'm really puzzled as to what's going on here.

 

Here's the code....

 

<?php

  // Get the search variable from URL
  $var = @$_GET['q'];
  $trimmed = trim($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 ** EDIT REQUIRED HERE **
mysql_connect(); //(host, username, password)

//specify database ** EDIT REQUIRED HERE **
mysql_select_db("") or die("Unable to select database"); //select which database we're using

// Build SQL Query  
$query = "select * from Classifieds where Category like \"%$trimmed%\" or Description like \"%$trimmed%\"

  order by Category"; // EDIT HERE and specify your table and field names for the SQL query
$numresults=mysql_query($query);
$numrows=mysql_num_rows($numresults);

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

echo '<table border="1">
<TR><TD width="20%" align="center">Category</TD>
<TD width="80%" align="center">Description</TD></TR>';

while (list ($ID, $Category, $Description) = mysql_fetch_row($result)) {
echo "<TR><TD>$Category</TD>
<TD>$Description</TD></TR>";
}
echo '</table>'; 

$currPage = (($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&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>";
  
?>

[DarkWater]

$numresults=mysql_query($query) OR die(mysql_error());

 

Try that and see if anything pops up.

[PFMaBiSmAd]

$s is not set in the code, which is curious because you are using $_GET['q'] (consistency counts when writing code.)

 

Use $_GET['s']

[itsinmyhead]

Nope...  nothing.

 

I'm just totally boggled by this.  The same exact code on two different servers, but only one works.

 

Tried your suggestion, too, PF.  The search form was given the name "q" which is where the "q" came from in the PHP.  I did try changing it, though, and saw no difference.

[itsinmyhead]

A twist!

 

I've noticed that, on the adkpennysaver.com site, clicking "Next" changes the search term to "10."  On the second page, upon clicking "Next," it changes the search term to "20," and so on and so forth.

 

It doesn't do this on the phenixdesigns.net site, despite the code being exactly the same.

 

Does anyone have any tips on this one for me?  I am, again, boggled.

[itsinmyhead]

Alright, so that problem is gone.  Now it's just back to normal - displaying the first ten results of a search while keeping the search term the same (instead of it switching to a number).

 

Still not getting it...

[itsinmyhead]

Solved.

 

Got some help on another forum.  Had to add:

 

$s = $_GET['s'];

 

to the beginning of my code.