PHP/MySQL Search: 'Next Page' Not Working
Posted: Wed Aug 13, 2008 11:36 am
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 changes and all, but it displays the same results as were there before (the first ten). I'm really puzzled as to what's going on here.
Here's the code...
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 changes and all, but it displays the same results as were there before (the first ten). I'm really puzzled as to what's going on here.
Here's the code...
Code: Select all
<?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>  ";
}
// 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>";
?>