Изменить формат вывода случайной строки

function RandLine($num,$s,$fileName){
      $data = file($fileName); 
      $arr = array();
      $output = "";
      

      for ( $i = 0; $i < $num; $i++ ) {
         
         do {
            $rand = mt_rand(0, count($data) - 1);
         } while ( in_array($rand, $arr) );
         
         $arr[] = $rand;
         $output .= str_replace("\n", "", $data[$rand]).$s;
      }
      return $output;
}
****************Изменить этот кусок кода********************
function GenTheText( $t ) {
   while ( preg_match( '#\{([^\{\}]+)\}#i', $t, $m ) ) {
      $v = explode( '|', $m[1] );
      $i = rand( 0, count( $v ) - 1 );
      $t = preg_replace( '#'.preg_quote($m[0]).'#i', $v[$i], $t, 1 );
   } return $t;
}
$str='';
***********************************************************
function mb_ucfirst($str) { 
     return mb_substr(mb_strtoupper($str,'utf-8'),0,1,
'utf-8').mb_strtolower(mb_substr($str,1,mb_strlen($str,'utf-8'),'utf-8'),'utf-8');
} 


$public = RandLine($num = 1,$s = "", $dir."public.txt");
$attach = "img/".$public.".txt";
$rand36 = rand(1,1); 
$attachments = RandLine($num = $rand36,$s = ", ", $attach);
$randtext = file_get_contents($dir."text/".$public.".txt");

$text = GenTheText($randtext);

echo $public."<br/>".$attach."<br/>".$attachments."<br/>".$text;
$ch = curl_init('https://api.vk.com/method/wall.post');
curl_setopt ($ch, CURLOPT_HEADER, 1); 
curl_setopt ($ch, CURLOPT_USERAGENT, 
'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.3) Gecko/2008092417 Firefox/3.0.3');
curl_setopt ($ch, CURLOPT_REFERER, 'https://api.vk.com/method/wall.post');
curl_setopt ($ch, CURLOPT_POST, 1);
curl_setopt ($ch, CURLOPT_COOKIEJAR, $dir.'cookie.txt');
curl_setopt ($ch, CURLOPT_POSTFIELDS, 
'owner_id=-'.$public.'&v=5.28&access_token='.$access_token.'&attachments='.$attachments.'&message='.$text);
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt ($ch, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt ($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt ($ch, CURLOPT_HTTPHEADER, array('Expect:'));
curl_exec ($ch);
$result = curl_multi_getcontent ($ch);
echo "\n".'Login OK'."\n".'[result ===8<===>'."\n".$result."\n".'<===>8=== result]'."<br/>\n";
echo "http://vk.com/public".$public."";
curl_close ($ch);

?>