Banlist.parser.class PHP 5

<?php
class Banlist
{
    private $host , $user , $password;
    private $local_file = "bpc_samp.ban";
    private $local_file_ = "bpc_samp.ban_";

    public function __construct( $host , $user , $password )
    {
        if( $this->valornull( $host ) != null and $this->valornull( $user )  != null and $this->valornull( $password ) != null )
        {
            $this->host = $host;
            $this->user = $user;
            $this->password = $password;
        }else throw new Exception("FTP Account not correct!");
    }

    public function getBanlistFile($file = "samp.ban" )
    {
        $conn_id = ftp_connect( $this->host );
        $login_result = ftp_login( $conn_id , $this->user , $this->password );
        if (ftp_get( $conn_id, $this->local_file_ , $file , FTP_BINARY))
        {
            unlink( $this->local_file );
            rename( $this->local_file_ , $this->local_file );
        } else throw new Exception("File not downloaded!");
        ftp_close( $conn_id );
    }

    public function parseBanlistFile( $file_path = "bpc_samp.ban" )
    {
        $data = file_get_contents( $file_path );
        $data = rtrim( $data , "\n");
        $data = explode("\n",$data );
        foreach( $data as $ban )
        {
            $baninfo = explode(" [",$ban);
            $bandetails["IP"] = $baninfo[0];
            $baninfo = explode("] ",$baninfo[1]);
            $bandetails["DATE"] = $baninfo[0];
            $baninfo = explode(" - ",$baninfo[1]);
            $bandetails["PLAYER"] = $baninfo[0];
            $bandetails["REASON"] = $baninfo[1];
            $output[] = [
                "IP" => $bandetails["IP"],
                "DATE" => $bandetails["DATE"],
                "PLAYER" => $bandetails["PLAYER"],
                "REASON" => $bandetails["REASON"]
            ];
        }
        return $output;
    }

    public function stylizeRow( $prefix , $suffix , $rowprefix , $rowsuffix)
    {
        $data = $this->parseBanlistFile();
        foreach( $data as $record => $r )
        {
            $rows[] = $rowprefix.$prefix.$r["IP"].$suffix.$prefix.$r["DATE"].$suffix.$prefix.$r["PLAYER"].$suffix.$prefix.$r["REASON"].$suffix.$rowsuffix;
        }
        return $rows;
    }

    public function stylizeRowEcho( $prefix , $suffix , $rowprefix , $rowsuffix)
    {
        $data = $this->parseBanlistFile();
        foreach( $data as $record => $r )
        {
            echo $rowprefix.$prefix.$r["IP"].$suffix.$prefix.$r["DATE"].$suffix.$prefix.$r["PLAYER"].$suffix.$prefix.$r["REASON"].$suffix.$rowsuffix;
        }
    }

    private function valornull( $variable )
    {
        if( strlen( trim( $variable ) ) == 0 ) return null;
        else return $variable;
    }
}
 ?>