PHP - I Am Trying To Make A Prev, And Next Link At Bottom Of Search Page?

I was wondering if someone could give me the code for a next and prev button at the bottom of my search page...here is my code for the search page now however when I click next it says please fill in all search fields...

Code: [Select]
<?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","username","pass") or die("Not connected");

//specify database 
mysql_select_db("db") 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
 echo "isbn";

}
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: &quot;" . $trimmed . "&quot; 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: &quot;" . $var . "&quot; in &quot;" . $searchtype ."&quot; </p>";

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

if ($searchtype = $title)

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

}
elseif ($searchtype = $isbn)
{
// now you can display the results returned
while ($row= mysql_fetch_array($result)) {
  $title = $row["isbn"];
   echo "$count.&nbsp;$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-$limit);
  print "&nbsp;<a href=\"$PHP_SELF?s=$prevs&q=$var\">&lt;&lt; 
  Prev 10</a>&nbsp&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 "&nbsp;<a href=\"$PHP_SELF?s=$news&q=$var\">Next 10 &gt;&gt;</a>";
  }

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

I have a site, and there is an image with a link to another page, how can I make it so this is the only way to get to that page is by clicking on that image, and not by typing www.mywebsite.com/page.php into the address bar in a browser?

 The result pages is supposed to have  pagination like google  help me please

 

Hello. I am working on a php script for searching a database table. I am really new to this, so I used the this tutorial http://www.phpfreaks.com/tutorial/simple-sql-search

I managed to get all the things working the way I wanted, except one important and crucial thing.
Let me explain.
My table consist of three columns, like this:

ID(bigint20)    title(text)        link (varchar255)
=============================
ID1                title1                link-1
ID2                title2                link-2
etc...

Like I said, I managed to make the script display results for a search query based on the title. Want I want it to do more, but I can't seem to find the right resource to learn how, is to place a "Download" button under each search result with its corresponding link from the table.

Here is the code I used.

<?php

$dbHost = 'localhost'; // localhost will be used in most cases
// set these to your mysql database username and password.
$dbUser = 'user'; 
$dbPass = 'pass';
$dbDatabase = 'db'; // the database you put the table into.
$con = mysql_connect($dbHost, $dbUser, $dbPass) or trigger_error("Failed to connect to MySQL Server. Error: " . mysql_error());

mysql_select_db($dbDatabase) or trigger_error("Failed to connect to database {$dbDatabase}. Error: " . mysql_error());
// Set up our error check and result check array
$error = array();
$results = array();
// First check if a form was submitted. 
// Since this is a search we will use $_GET
if (isset($_GET['search'])) {
   $searchTerms = trim($_GET['search']);
   $searchTerms = strip_tags($searchTerms); // remove any html/javascript.
   
   if (strlen($searchTerms) < 3) {
      $error[] = "Search terms must be longer than 3 characters.";
   }else {
      $searchTermDB = mysql_real_escape_string($searchTerms); // prevent sql injection.
   }
   
   // If there are no errors, lets get the search going.
   if (count($error) < 1) {
      $searchSQL = "SELECT title, link FROM db WHERE title LIKE '%{$searchTermDB}%'";

      $searchResult = mysql_query($searchSQL) or trigger_error("There was an error.<br/>" . mysql_error() . "<br />SQL Was: {$searchSQL}");
      
      if (mysql_num_rows($searchResult) < 1) {
         $error[] = "The search term provided {$searchTerms} yielded no results.";
      }else {
         $results = array(); // the result array
         $i = 1;
         while ($row = mysql_fetch_assoc($searchResult)) {
            $results[] = "{$row['title']}<br /> Download - this is the button I want to link to the title results - and maybe other links too - <br /> ";

    $i++;

       

   
         }
      
      }
   }
}

function removeEmpty($var) {
   return (!empty($var)); 


}
?>

      <?php echo (count($error) > 0)?"The following had errors:<br /><span id=\"error\">" . implode("<br />", $error) . "</span><br /><br />":""; ?>
      <form method="GET" action="search?" name="searchForm">
         Search for title: <input type="text" name="search" value="<?php echo isset($searchTerms)?htmlspecialchars($searchTerms):''; ?>" />
        
         <input type="submit" name="submit" value="Search" />
      </form>

    <?php echo (count($results) > 0)?"Rezultate lucrari de licenta sau disertatie pentru {$searchTerms} :<br /><br />" . implode("", $results):""; ?>




 $results = array(); // the result array
         $i = 1;
         while ($row = mysql_fetch_assoc($searchResult)) {
            $results[] = "{$row['title']}<br /> Download - this is the button I want to link to the title results - and maybe other links too - <br /> ";

    $i++;

 
I would like the results to be displayed like this

Results for SearchItem:

Result 1
Download | Other link
Result 2
Download | Other link
etc.... or something like this.

So, how do I add the data from the link row into a text(Dowload), within an <a href> tag (well, at least I guess it would go this way) ?
My first tries (fueled by my lack of knowledge) where things like

$results[] = "{$row['title']}<br /> <a href="{$row['link']}">Download</a> <br /> ";

but I keep getting lots of errors, and then I don't know much about arrays and stuff (except basic notions);
So there it is. I am really stuck and can't seem to find any workaround for this.
Any suggestions? (examples, documentation, anything would do, really)
Thanks,
Radu

Hi,
  I'm trying to populate the previous and next links with an id from mysql.   The code below works but also displays ids that do not exist in the database.    I want the code to only show me the rows that exist not the ones that do not exist.  For example, at this time I have 5 rows.  The ids of the rows are 1, 2, 3, 4, 6  when I get to say, id 6 and click on next it displays id 7 instead of going back to 1 or greying out next - meaning there's no more to view.     Can someone help? 

<?php
include('connection.php');


if(isset($_GET['id'])){
$start = $_GET['id'];
}else{
$start = 0;
}
$sql = mysql_num_rows(mysql_query("SELECT * FROM thetable"));

    
$result = mysqli_query($con,$sql);

$rows = mysql_fetch_array($result);

echo $rows['thetable'];


if($start == 0){
echo "Previous &laquo;";
}else{
echo "<a href=\"./thepage.php?id=" . ($start - 1) . "\">&laquo; Previous </a>";
}

if($start == $sql-1){
echo "Next &raquo;";
}else{
echo "<a href=\"./thepage.php?id=" . ($start + 1) . "\">Next &raquo;</a>";
}
?>



<?php
// End while loop.


mysqli_close($con);

?>