source/model/login.model.php

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<?php
class loginModel extends model{
	public $userid;
	 
	function __construct (){
		parent::__construct ();
		 
		$this->table="user";
		$this->userid=$this->getUserId();
	}
	
	public function set($k,$v){
		$_SESSION[$k]=$v;
	}
	
	public function get($k){
		return $_SESSION[$k];
	}
	
	public function getUser($userid=0,$fields="userid,nickname,username,user_head,gender,money,grade,gold"){
		$userid=$userid?$userid:(isset($_SESSION['ssuser']['userid'])?intval($_SESSION['ssuser']['userid']):0);
		if(!$userid) return false;
		$user=parent::selectRow(array("where"=>"userid=$userid","fields"=>$fields));
		$user['user_head']=images_site($user['user_head']);
		unset($user['salt']);
		unset($user['password']);
		return $user;
	}
	
	public function getUserId(){
		return (isset($_SESSION['ssuser']['userid'])?intval($_SESSION['ssuser']['userid']):0);
	}
	
	public function checklogin($setBack=false){
		 
		if(get_post('ajax')){
			if(empty($_SESSION['ssuser']['userid'])){
				if($setBack){
					$this->setBackurl();
				} 
				exit(json_encode(array("error"=>1000,"nologin"=>1,"message"=>"请先登录") ));
				 
			}
		}else{
			if(empty($_SESSION['ssuser']['userid'])){
				$this->setBackurl();
				header("Location: /index.php?m=login");
				exit;
			}
		}
	}
	
	/**
	* array(
	* 	"userid"=>$userid,
	*  "passowrd"=>$password
	* )
	* **/
	public function setCode($user,$el=false){
		$userid=$user["userid"];