PHP object-oriented paging data display

PHP enthusiasts will like all kinds of object-oriented source codes, which can be used as soon as they are called. Haha, the paginated data shows that there is not much to say about small functional modules, so just go to the source code,

n Years later, Xiaohan still found that he didn’t have a good habit of commenting on code. Alas, this aspect is very lacking. While doing PHP tutorials, it was very lacking. But he still explained it in the source code

class page{
private $pagesize;
private $page;
private $total;
private $conn;
private $pagecount;
public function __construct($pagesize,$page){
$this->pagesize = $pagesize;
$ this->page = $page;
}
public function listinfo(){
if ($this->page = ""||!is_numeric($this->page)){
$this-> page = 1;//The process of assigning the initial value
}
$this->conn = mysql_connect("localhost","root","");
mysql_select_db("user",$this->conn);
mysql_query("set names utf8");
$sql = mysql_query("select count(*) as total from user_student",$this->conn);
$info = mysql_fetch_array($sql);
if ($ this->total == 0){
echo "No content yet";
}else {
if ($this->total%$this->page == 0){

$this-> pagecount = intval($this->total/$this->pagesize);
}else {
if ($this->total<=$this->pagesize){
$this->pagecount = 1;
}else {
$this->pagecount = ceil($this->total/$this->pagesize);
}
}
}
}

}
?>

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