fritekst søgning uden DB

Mojn,

Jeg har fundet et search script i php som jeg vil bruge på min hjemmeside. Scriptet skulle kunne søge i forskellige filtyper i undermapper mv., men jeg aner ikke hvordan jeg skal læse det... lidt assistance er velkommen. Det jeg skal vide er hvor jeg skal rette i scriptet så jeg får det til at søge i de rigtige undermapper, hvilke filtyper den kigger igennem.

<HTML><HEAD></HEAD><BODY BACKGROUND=background.gif>

<CENTER>


<BR>
<H1>Søge resultater</H1>
<HR>

<TABLE BORDER=0 width=95% spacing=0 CELLPADDING=0 CELLSPACING=0>
<TR><TD background=topbg.gif><BR></TD></TR>

<?Php
    error_reporting(0);
    $timex=time();
    $timey=0;
    $bgchange="FFFFFC";
    $fchek=0;
    $command[0]="0";
    $dirtest="false";


#subfolder search options setup starts here

if($where=="index"){
$dirtest="true";
$linkdir="";
$handle=opendir('.');

    } elseif($where=="php"){
    $linkdir="phpapps/";
    chdir('./phpapps');
    $handle=opendir('.');

        }elseif($where=="other"){
        $linkdir="otherscripts/";
        chdir('./otherscripts');
        $handle=opendir('.');

            }elseif($where=="news"){
            $linkdir="news/";
            chdir('./news');
            $handle=opendir('.');
} else {
    $dirtest="true";
    $linkdir="/ts_ny/profil/";
    $handle=opendir('.');
}


#thats it, nothing else should be changed do not edit below this line.




while (($file = readdir($handle))!==false){
    if (eregi("[a-zA-Z0-p_-]*.html",$file) or eregi("[a-zA-Z0-p_-]*.htm",$file)or eregi("[a-zA-Z0-p_-]*.php",$file)or eregi("[a-zA-Z0-p_-]*.txt",$file)){
        $fchek=$fchek+1;
        $sizer=filesize($file);
        $sizer=($sizer/1000);
        $sizer=round($sizer,1);
        $file=trim($file);
        $file=chop($file);
        $filed=file($file);
        $fileold=$file;
        $count = count($filed);
        $i = $count;
        $zt = 0;
        $clt=0;
        $found=0;
        $stringer=0;
            for($j=$zt;$j<$i;$j++){
                $string=$filed[$j];
                $stringer=$filed[$j];
                $num = "regPLACE hold";
                $string=strtolower($string);
                $stringer=strtolower($stringer);
                $whatdoreplace=strtolower($whatdoreplace);
                $string = ereg_replace($whatdoreplace, $num, $string);
                    if($string!=$stringer){
                    $found=$found+1;
                    $abby=$found;
                    $show[$found]=$stringer;
                    }
            }
        $dircount=count($file);
        echo "<FONT SIZE=-1>";
        if($found>0){
            $command[0]=($command[0]+10);
            if(eregi("[a-zA-Z0-p_-]*.txt",$file)){
                $fileold=$file;
                $file="index.php";
                if($dirtest=="true"){
                $file=$fileold;
            }

        }
        if($file=="index.html"){
            if($bgchange=="EEEEEE"){
            $bgchange="FFFFFF";
            echo "</TD></TR><TR><TD BGCOLOR=$bgchange><BR><A HREF=\"$linkdir$file\" target=_new><FONT SIZE=+2>$file</A><BR>$data</FONT> Size: $sizer Kb<BR><BR>This file containes <B><FONT COLOR=RED>$found</FONT></B> instances of <B><FONT COLOR=RED>$whatdoreplace</FONT></B> (shown below) <BR><UL>";
            } else {
                $bgchange="EEEEEE";
                echo "</TD></TR><TR><TD BGCOLOR=$bgchange><BR><A HREF=\"$linkdir$file\" target=_new><FONT SIZE=+2>$fileold</A> </FONT> Size: $sizer Kb<BR><BR>This file containes <B><FONT COLOR=RED>$found</FONT></B> instances of <B><FONT COLOR=RED>$whatdoreplace</FONT></B> (shown below) <BR><UL>";
                }
            } elseif($bgchange=="EEEEEE"){
            $bgchange="FFFFFF";
            echo "</TD></TR><TR><TD BGCOLOR=$bgchange><BR><A HREF=\"$linkdir$file\"><FONT SIZE=+2>$fileold</A></FONT> Size: $sizer Kb<BR><BR>This file containes <B><FONT COLOR=RED>$found</FONT></B> instances of <B><FONT COLOR=RED>$whatdoreplace</FONT></B> (shown below) <BR><UL>";
            } else {
                $bgchange="EEEEEE";
                echo "</TD></TR><TR><TD BGCOLOR=$bgchange><BR><A HREF=\"$linkdir$file\"><FONT SIZE=+2>$fileold</A></FONT> Size: $sizer Kb<BR><BR>This file containes <B><FONT COLOR=RED>$found</FONT></B> instances of <B><FONT COLOR=RED>$whatdoreplace</FONT></B> (shown below) <BR><UL>";
                }
            $file=$fileold;
            for($new=1;$new<=$found;$new++){
                $show[$new]=strip_tags($show[$new]);
                $show[$new] = ereg_replace($whatdoreplace,"<FONT COLOR=RED><B>$whatdoreplace</FONT></B>",$show[$new]);
                echo "<FONT SIZE=-1>";
                print "<LI>$show[$new]";
            }
            echo "</UL></FONT></TD></TR>";
        }

        }
}

if($command[0]==0){
    echo "<BR></TD></TR><TR><TD bgcolor=000000><CENTER><B><FONT SIZE=+2 COLOR=RED>No Results Found!";
}

echo "<BR></TD></TR><TR><TD BGCOLOR=AAAAFF><CENTER><FONT SIZE=-1>There where $fchek total file(s) searched which took ";
$timey=time();
$timea=($timey-$timex);
echo " $timea total seconds(s)";


?>
<TD/></TD></TR></TABLE><BR><CENTER><IMG SRC=sas.gif><TABLE>
<BR><BR><BR><BR><BR><BR>
<TABLE WIDTH=300><TR><TD><FONT SIZE=-3 COLOR=BLUE>
In case your interested, this search engine was written entirely by me, using the PhP 4 Scripting Languarge.  It uses nothing but itself, making it the easiest to setup and begin using for people who don't want to setup a database just to do searches.  Every site I checked said that PhP search engines do not work. But I don't listen very well.
</TD></TR></TABLE>
</HTML>