<?php
/*
function:strip_stuff()

    strips stuff from a string
    also removes stop-words, and any words of two characters or less

    (c) copyright corz.org 2000->today


*/
function strip_stuff($string) {
    
$string strip_tags($string);

    
// stuff
    
$stoppers = array
    (
'.',',',':','|','"','\\','/','?','*','~','#','%','$','(',')','[',']','{','}','-','_','=','+'
    
,'*','£','@','\\'.'$',"Â","\r\n","\r","\n","\t",'»','«','&nbsp;','&copy;','&reg;','&amp;'
    
,'&gt;','&lt;','&trade;','•','°',"!"
    
);

    while (list(
$key$val) = each($stoppers)) {
        
$string str_replace($val' '$string);
    }
    
$string str_replace("\t",' ',$string);
    
$string str_replace('   ',' ',$string);
    
$string str_replace('  ',' ',$string);
    
$string strtolower($string);

    
// stop-words
    
$stop_words = array    ('' // some of these are probably not neccessary
    
,'&nbsp;',';o','a','A','all','and','are','at','be','but','by','can','do','don\'t'
    
,'for','got','have','he','here','I','in','if','is','it','like','me','my','n','no'
    
,'o','of','on','one','or','out','she','so','t','than','then','that','that\'s'
    
,'the','The','there','there\'s','these','this','to','too','was','we','with','you'
    
);

    
$words explode (' '$string);
    
$qs count($stop_words);
    
reset($words);

    while (list(
$key$val) = each($words)) {
        for (
$i=0;$i<$qs;$i++) {
            if ((
$words[$key] == $stop_words[$i]) or (strlen($words[$key]) < 3)){
                unset(
$words[$key]);
                break 
1;
            }
        }
    }
    
$string implode(' '$words);
    return 
$string;

}
/*
end function strip_stuff()
*/
?>
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