Matt Wade Tutorial Errors

Hi..
Am just working through Matt Wades tutorial on Creating a Search Application, but Im receiving errors with the code below..Depending on the input within the input box..

thanks heaps...
///////////
the errors are
Warning: array_walk(): The argument should be an array in C:indigoperlapachehtdocssearchsearchclass.php on line 70

Warning: arsort() expects parameter 1 to be array, null given in C:indigoperlapachehtdocssearchsearchclass.php on line 84

Warning: array_keys(): The first argument should be an array in C:indigoperlapachehtdocssearchsearchclass.php on line 85

Warning: array_walk(): The argument should be an array in C:indigoperlapachehtdocssearchsearchclass.php on line 86
////////////////
the code is
<?php
require('dbclass.php');

class Search {

var $_db;
var $_searchterms;
var $_numterms;

function Search($keywords) {
$this->_db = new DB_Class('host', 'user', 'pass');
if (!get_magic_quotes_gpc()) {
$keywords = addslashes ($keywords);
}
$this->_searchterms = explode(' ', $keywords);
$this->_numterms = count($this->_searchterms);
}

function doSearch() {
$match = "keywords.keyword in ('"
. $this->_searchterms[0] . "'";
for ($i = 1; $i < $this->_numterms; $i++) {
$match .= ", '" . $this->_searchterms[$i] . "'";
}
$match .= ")";
$query = "SELECT urls.url, count(*) as counter "
. "FROM urls, keywords "
. "WHERE $match "
. "AND keywords.url_id = urls.id "
. "GROUP BY keywords.url_id "
. "ORDER BY counter DESC";
$result = $this->_db->fetch($query);
if (count($result) > 0)
$return = $result;
else
$return = FALSE;

return $return;
}

function _highpercent(&$item, $key, $array) {
if ($item < 60)
unset($array["$key"]);
}

function _sla****(&$item, $key) {
$item = addslashes($item);
}

function doFuzzy() {
$match = "LEFT(keyword,1) in ('"
. substr($this->_searchterms[0], 0, 1) . "'";
for ($i = 1; $i < $this->_numterms; $i++) {
$match .= ", '" . substr($this->_searchterms[$i], 0, 1)
. "'";
}

$match .= ")";
$query = "SELECT DISTINCT(keyword) FROM keywords "
. "WHERE $match";
$keywords = $this->_db->fetch($query);
reset($this->_searchterms);
foreach ($this->_searchterms as $term) {
foreach ($keywords as $keyword) {
$word = $keyword['keyword'];
similar_text($term, $word,
$matches["$term"]["$word"]);
}
array_walk ($matches["$term"],
array($this, '_highpercent'),
$matches["$term"]);
}
if($this->_numterms > 1) {
$merge = '$merged = array_merge($matches["'
. $this->_searchterms[0] . '"]';
for ($i = 1; $i < $this->_numterms; $i++) {
$merge .= ', $matches["'
. $this->_searchterms[$i] . '"]';
}
$merge .= ');';
eval ($merge);
} else {
$merged = $matches[$this->_searchterms[0]];
}
arsort($merged);
$search = array_keys($merged);
array_walk($search, array($this, '_sla****'));
$match = "keywords.keyword in ('"
. $search[0] . "'";
$numwords = count ($search);
for ($i = 1; $i < $numwords; $i++) {
$match .= ", '" . $search[$i] . "'";
}
$match .= ")";
$query = "SELECT urls.url, keywords.keyword, "
. "count(*) as counter "
. "FROM urls, keywords "
. "WHERE $match "
. "AND keywords.url_id = urls.id "
. "GROUP BY keywords.url_id, keywords.keyword "
. "ORDER BY counter DESC";
$result = $this->_db->fetch($query);
if (count($result) > 0)
$return = $result;
else
$return = FALSE;

return $return;
}
}
?>

Thread moved from 'PHP Coding' to 'Tutorials' by tkarkkainen.

Reason: Tutorial question

I am having the same errors. Also, although it is kind of a useful starting point the harvesting is very minor. It seems to only grab the page title and navigation or something. The page is a XHTML 1.0 strict tableless design so it shouldn't be missing the content and its a blog so there is plenty to put into the keywords table.

Any clues on why the error comes up would be appreciated... thanks

Hi all, I am having the same exact errors. For some reason when you search for something and q,z,x,j,k,4,5,7,8,9 and 0 is the first letter/number in your search term it gives that error.

I can't for the life of me figure it out.

MATTTTT!!!!!!!!!

Errors are the same with all of those:


Warning: array_walk(): The argument should be an array in /home/virtual/site267/fst/var/www/html/searchclass.php on line 70

Warning: arsort() expects parameter 1 to be array, null given in /home/virtual/site267/fst/var/www/html/searchclass.php on line 84

Warning: array_keys(): The first argument should be an array in /home/virtual/site267/fst/var/www/html/searchclass.php on line 85

Warning: array_walk(): The argument should be an array in /home/virtual/site267/fst/var/www/html/searchclass.php on line 86