幸运九宫格抽奖系统带后台PHP网页源码，可做计算机毕业设计

<?php header('Content-Type: text/html; charset=utf-8'); session_start(); date_default_timezone_set('Asia/shanghai'); error_reporting(0); C(require('db.php')); $dbcon = new mysqli(C('db_host'),C('db_user'),C('db_pass'),C('db_base')); !$dbcon && die('数据库连接错误'); $dbcon->query('set names utf8;'); function C($name=null, $value=null) { static $_config = array(); if (empty($name)) return $_config; if (is_string($name)) { if (!strpos($name, '.')) { $name = strtolower($name); if (is_null($value)) return isset($_config[$name]) ? $_config[$name] : null; $_config[$name] = $value; return; } $name = explode('.', $name); $name[0] = strtolower($name[0]); if (is_null($value)) return isset($_config[$name[0]][$name[1]]) ? $_config[$name[0]][$name[1]] : null; $_config[$name[0]][$name[1]] = $value; return; } if (is_array($name)){ return $_config = array_merge($_config, array_change_key_case($name)); } return null; } function V($view=''){ require $view.'.php'; } function S($name='',$value='') { if ($value==='') { if ($name==='') { return $_SESSION; } elseif(is_null($name)) { session_destroy(); } else { return isset($_SESSION[$name]) ? $_SESSION[$name] :false; } } elseif(is_null($value)) { unset($_SESSION[$name]); } else { $_SESSION[$name]=$value; } } function U($uri='') { if (substr($uri,0,4)=='http') { return $uri; } else { if ($uri=='-2') { $h = $_SERVER['HTTP_HOST']; $h = strtolower($h); if (strpos($h,'/')!==false) { $p = @parse_url($h); $h = $p['host']; } $l = array('com','edu','gov','int','mil','net','org','biz','info','pro','name','museum','coop','aero','xxx','idv','mobi','cc','me'); $s = ''; foreach($l as $v){ $s.=($s ? '|' : '').$v; } $m = "[^\.]+\.(?:(".$s.")|\w{2}|((".$s.")\.\w{2}))$"; if (preg_match("/".$m."/ies",$h,$t)) { $d = $t['0']; } else{ $d = $h; } return $d; }elseif ($uri=='-1') { $url1 = isset($_SERVER['SERVER_PORT']) && $_SERVER['SERVER_PORT'] == '443' ? 'https://' : 'http://'; $url2 = $_SERVER['PHP_SELF'] ? $_SERVER['PHP_SELF'] : $_SERVER['SCRIPT_NAME']; $url3 = isset($_SERVER['PATH_INFO']) ? $_SERVER['PATH_INFO'] : ''; $url4 = isset($_SERVER['REQUEST_URI']) ? $_SERVER['REQUEST_URI'] : $url2.(isset($_SERVER['QUERY_STRING']) ? '?'.$_SERVER['QUERY_STRING'] : $url3); return $url1.(isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : '').$url4; } return 2==1 ? base_url($uri) : site_url($uri); } } function R($url, $d='', $method='GET', $headers=array()) { if (substr($url,0,4)!='http') $url = U($url); $ci = curl_init(); curl_setopt($ci, CURLOPT_SSL_VERIFYPEER, FALSE); curl_setopt($ci, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ci, CURLOPT_CONNECTTIMEOUT, 30); curl_setopt($ci, CURLOPT_TIMEOUT, 30); if ($method=='POST') { curl_setopt($ci, CURLOPT_POST, TRUE); curl_setopt($ci, CURLOPT_POSTFIELDS, $d); } curl_setopt($ci, CURLOPT_HTTPHEADER, $headers); curl_setopt($ci, CURLOPT_URL, $url); $response = curl_exec($ci); curl_close($ci); return $response; } function J($msg,$type=0) { if (is_array($msg)) { $j = $msg; $msg = $j['msg']; }else{ $j['msg'] = $msg; } switch($type) { case '0': $j['state'] = 'error';break; case '1': $j['state'] = 'success';break; default: $j['state'] = $type;break; } //header('Content-type: application/json'); die(json_encode($j)); } function I($name,$default='',$filter='str_htmlencode') { if (strpos($name,'.')) { list($method,$name) = explode('.',$name,2); } else { $method = 'param'; } switch(strtolower($method)) { case 'get' : $input =& $_GET;break; case 'post' : $input =& $_POST;break; case 'put' : parse_str(file_get_contents('php://input'), $input);break; case 'param' : switch($_SERVER['REQUEST_METHOD']) { case 'POST':$input = $_POST;break; case 'PUT' :parse_str(file_get_contents('php://input'), $input);break; default :$input = $_GET; } break; case 'request' : $input =& $_REQUEST;break; case 'session' : $input =& $_SESSION;break; case 'cookie' : $input =& $_COOKIE;break; case 'server' : $input =& $_SERVER;break; case 'globals' : $input =& $GLOBALS;break; default:return NULL; } if (empty($name)) { $data = $input; $filters = $filter; if ($filters) { $filters = explode(',',$filters); foreach($filters as $filter){ $data = $filter($data); } } } elseif (isset($input[$name])) { $data = $input[$name]; $filters = $filter; if ($filters) { $filters = explode(',',$filters); foreach($filters as $filter){ if (function_exists($filter)) { $data = $filter($data); } } if (!$data) return isset($default)?$default:NULL; } } else { $data = isset($default) ? $default:NULL; } return $data; } function base_url($uri = '') { if (isset($_SERVER['HTTP_HOST'])) { $base_url = isset($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) !== 'off' ? 'https' : 'http'; $base_url .= '://'. $_SERVER['HTTP_HOST']; $base_url .= str_replace(basename($_SERVER['SCRIPT_NAME']), '', $_SERVER['SCRIPT_NAME']); } else { $base_url = 'http://localhost/'; } if (is_array($uri)) $uri = implode('/', $uri); $uri = trim($uri, '/'); return $base_url.ltrim($uri, '/'); } function site_url($uri = '') { return base_url().'index.php/'.$uri; } function sys_ip() { if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) { $arr = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']); $pos = array_search('unknown',$arr); if (false!==$pos) unset($arr[$pos]); $ip=trim($arr[0]); } elseif(isset($_SERVER['HTTP_CLIENT_IP'])) { $ip=$_SERVER['HTTP_CLIENT_IP']; } elseif(isset($_SERVER['REMOTE_ADDR'])) { $ip=$_SERVER['REMOTE_ADDR']; } // IP地址合法验证 $ip = (false !== ip2long($ip)) ? $ip : '0.0.0.0'; return $ip; } function set_token($str='token') { $data = md5(time().uniqid()); setcookie($str,$data,time()+3600*24); return $data; } function get_token($str='token') { $post = I($str,'token'); $token = $_COOKIE[$str]; if ($token && $post == $token) { setcookie($str,'',time()+3600*24); return true; } return false; } function redirect($url) { header("Location: $url"); exit; } function db_sql($sql,$type=2) { global $dbcon; $r = array(); $result = $dbcon->query($sql); switch ($type) { case 1:$r = mysqli_fetch_assoc($result); break; case 2:while ($row=@mysqli_fetch_assoc($result)) {$r[] = $row;} break; case 3:$r = mysqli_num_rows($result);break; default:$r = $result;break; } return $r; } function escape($str){ if (is_string($str)){ $str = "'".$str."'"; }elseif (is_bool($str)){ $str = ($str === FALSE) ? 0 : 1; }elseif (is_null($str)){ $str = 'NULL'; } return $str; } function _has_operator($str){ $str = trim($str); if(!preg_match("/(\s|<|>|!|=|is null|is not null)/i", $str))return FALSE; return TRUE; } function _where($key, $value = NULL, $type = ' AND ', $escape = NULL){ if (!is_array($key))$key = array($key => $value); foreach ($key as $k => $v){ if (!is_null($v)){ if ($escape===TRUE)$v = ' '.escape($v); if (!_has_operator($k))$k