erp/core/CoreApp/models/Model_check.php

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); 
class Model_check extends Lin_Model 
{
	function __construct(){
		parent::__construct();
		$this->load->database();
		$this->table = 'check';
		$this->load_table('check');
	}
	
	public function checkOverdue($check_name,$number){
		$check_name = trim($check_name);
		$info =  $this->find("check_name = '$check_name'");	
		if(empty($info)){

		}else{
			if(($info['addtime'] - time()) < $info['zx_hours']*60*60 ){
				return false;
			}
		}
		
		$this->insert([
			'check_name' => $check_name,
			'number' => $number,
			'addtime' => time(),
			'zx_hours'=> 72
		]);
		return true;
	}
	
}  //end class