Hashcat Converter v1.0

<?php
/// Hashcat Converter v1.0 ///
/// Copyright 2011 by Neo  ///
/// - www.xattack.co.nr -  ///

header("Content-Type: text/plain");

$source =   "source.txt";
$target =   "target.rule";

echo "Initialising $source...\n";
if ( file_exists("$source") ) {
    $file = str_replace(" ","",file_get_contents("$source"));
    $file = str_replace("\r","","$file");
    $row = explode("\n","$file");

    /// Hauptschleife ///
    echo "Converting...\n";
    for($i=0;$i<count($row);$i++) {
        $cur="$row[$i]";
        $c=strlen($cur)-1;
            while($c!=-1){
                $output .= "^$cur[$c]"; $c--;
            }
            if ( $i != count($row)-1 ) {
                $output .= "\n";
            }
    }

    /// Ausgabe in .rule Datei ///
    $h=fopen("$target","w");
    fwrite($h,"$output");
    fclose($h);
    echo "All Done...";
} else {
    echo "Error: $source not found...";
}
?>