WiPhiki - world's 3rd shortest wiki

.htaccess

RewriteEngine On
RewriteRule ^(.*)$ index.php?p=$1 [L,QSA]

wiphiki.php

<?$p=$_GET[p];$e=htmlentities($_GET[t]);if($e)`echo "$e">$p`&header("Location:$p
");$n=`cat $p`;echo preg_replace('~htt\S+|([A-Z]\w+){2,}~','<a href=$0>$0</a>',`
ls -t|head`."<hr>".`grep -l $p *`."<h1>$p</h1><pre>$n"),"<form action=$p>
<input type=submit>\n<textarea name=t cols=80 rows=16>$n";