search.php

<?php

$button = $_GET ['submit'];
$search = $_GET ['search'];

if(!$button)
echo "you didn't submit a keyword";
else
{
if(strlen($search)<=1)
echo "Search term too short";
else{
echo "You searched for <b>$search</b> <hr size='1'></br>";
mysql_connect("localhost","webcrawler","secret");
mysql_select_db("webcrawler");

$search_exploded = explode (" ", $search);


foreach($search_exploded as $search_each)
{
$x++;
if($x==1)
$construct .="keywords LIKE '%$search_each%'";
else
$construct .="AND keywords LIKE '%$search_each%'";

}

$construct ="SELECT * FROM document WHERE $construct";
$run = mysql_query($construct);

$foundnum = mysql_num_rows($run);

if ($foundnum==0)
echo "Sorry, there are no matching result for <b>$search</b>.</br></br>1.
Try more general words. for example: If you want to search 'how to create a website'
then use general keyword like 'create' 'website'</br>2. Try different words with similar
 meaning</br>3. Please check your spelling";
else
{
echo "$foundnum results found !<p>";

while($runrows = mysql_fetch_assoc($run))
{
$url = $runrows ['url'];
$title = $runrows ['crawl_date'];
$desc = $runrows ['text'];


echo "
<a href='$url'><b>$title</b></a><br>
$desc<br>
<a href='$url'>$url</a><p>
";

}
}

}
}

?>