if(isset($text)){
    $flagt=1;
}
if(isset($name)){
    $flagi=1;
}
if(isset($video)){
    $flagv=1;
}
if($flagt==0 && $flagi==0 && $flagv==0) {
    echo "nothing to upload";
}
else{
    $sql="insert into post(u_id,p_text,p_image,p_video)values('{$_SESSION['id']}',";
    $val=0;
    if ($flagt==1) {
        $val="'$text'";
    }

         if ($flagi==1 && $flagt==1) {
            $val.=",'$name'";
            upload('image','../user_uploads');

        }

        if ($flagt==1 && $flagi==1 && $flagv==1) {

            $val.=",'$video'";
            upload('image','../user_uploads');
            upload('video','../video');
            if ($flagt==1 && $flagi ==0 && $flagv==1) {

                $val.=",'$video'";
                upload('video','../video');
                if ($flagt==0 && $flagi ==1 && $flagv==1) {

                    $val.=",'$video'";
                    upload('image','../user_uploads');
                    upload('video','../video');

                }
            }
        }


    $sql.=$val.")";

}