This is if you want your meta keyword (and description) always change in every page
i use it on my site FreewareList.net
1. create php fle with name keyword.php
<?php
//to find the number of words so as to prevent the repetition of keywords
$delim = " ";
$string = "$head_title";
$words = count(explode($delim, $string));
//splits the title in to pieces
$pieces = explode(" ", $head_title);
for ( $counter = 0; $counter < $words; $counter += 1) {
// piece1 and comma
$badw=badwords("$pieces[$counter]");
echo $badw;echo ",";
}
?>
2. create php file with name filter.php
it's up to you ti select wich word that you want to block
for my site , i create like this:
<?
function badwords($string)
{
$replace = array();
$with = array();
$replace[] = "|";
$with[] = "files";
$replace[] = "and";
$with[] = "software";
$replace[] = "&";
$with[] = "games";
$replace[] = "Beta";
$with[] = "full";
$replace[] = "RC";
$with[] = "ready";
$replace[] = "Alpha";
$with[] = "full";
$replace[] = "List";
$with[] = "programs";
$replace[] = "Freeware";
$with[] = "freeware";
$replace[] = "Fresh";
$with[] = "microsoft";
$replace[] = "-";
$with[] = "utilities";
$replace[] = "Update";
$with[] = "update";
$replace[] = "Daily";
$with[] = "daily";
$replace[] = "Collection";