微信(weixin)大转盘抽奖页面、数据库以及抽奖算法（PHP源码）-PHP源码

function isMobile($mobile) {
return preg_match("/^(?:13d|14d|15d|18[0123456789])-?d{5}(d{3}|*{3})$/", $mobile);
}

function isEmail($email) {
return strlen($email) > 6 && preg_match("/^[w-.]+@[w-.]+(.w+)+$/", $email);
}

/**
* 发送HTTP请求方法，目前只支持CURL发送请求
* @param string $url 请求URL
* @param array $params 请求参数
* @param string $method 请求方法GET/POST
* @return array $data 响应数据
*/
function http($url, $params, $method = 'GET', $header = array(), $multi = false){
$opts = array(
CURLOPT_TIMEOUT => 30,
CURLOPT_RETURNTRANSFER => 1,
CURLOPT_SSL_VERIFYPEER => false,
CURLOPT_SSL_VERIFYHOST => false,
CURLOPT_HTTPHEADER => $header
);

/* 根据请求类型设置特定参数 */
switch(strtoupper($method)){
case 'GET':
$opts[CURLOPT_URL] = $url . '?' . http_build_query($params);
break;
case 'POST':
//判断是否传输文件
//$params = $multi ? $params : http_build_query($params);
$opts[CURLOPT_URL] = $url;
$opts[CURLOPT_POST] = 1;
$opts[CURLOPT_POSTFIELDS] = $params;
break;
default:
throw new Exception('不支持的请求方式！');
}

/* 初始化并执行curl请求 */
$ch = curl_init();
curl_setopt_array($ch, $opts);
$data = curl_exec($ch);
$error = curl_error($ch);
curl_close($ch);
if($error) throw new Exception('请求发生错误：' . $error);
return $data;
}

/**
* 不转义中文字符和/的 json 编码方法
* @param array $arr 待编码数组
* @return string
*/
function jsencode($arr) {
$str = str_replace ( "\/", "/", json_encode ( $arr ) );
$search = "#\u([0-9a-f]+)#ie";

if (strpos ( strtoupper(PHP_OS), 'WIN' ) === false) {
$replace = "iconv('UCS-2BE', 'UTF-8', pack('H4', '\1'))";//LINUX
} else {
$replace = "iconv('UCS-2', 'UTF-8', pack('H4', '\1'))";//WINDOWS
}

return preg_replace ( $search, $replace, $str );
}

// 数据保存到文件
function data2file($filename, $arr=''){
if(is_array($arr)){
$con = var_export($arr,true);
$con = "";
} else{
$con = $arr;
$con = "";
}
write_file($filename, $con);
}

/**
* 系统加密方法
* @param string $data 要加密的字符串
* @param string $key 加密密钥
* @param int $expire 过期时间 单位 秒
* @return string
* @author winky
*/
function encrypt($data, $key = '', $expire = 0) {
$key = md5(empty($key) ? C('DATA_AUTH_KEY') : $key);
$data = base64_encode($data);
$x = 0;
$len = strlen($data);
$l = strlen($key);
$char = '';

for ($i = 0; $i <$len; $i++) {
if ($x == $l) $x = 0;
$char .= substr($key, $x, 1);
$x++;
}

$str = sprintf('%010d', $expire ? $expire + time():0);

for ($i = 0; $i <$len; $i++) {
$str .= chr(ord(substr($data, $i, 1)) + (ord(substr($char, $i, 1)))%256);
}
return str_replace(array('+','/','='),array('-','_',''),base64_encode($str));
}

/**
* 系统解密方法
* @param string $data 要解密的字符串 （必须是encrypt方法加密的字符串）
* @param string $key 加密密钥
* @return string
* @author winky
*/
function decrypt($data, $key = ''){
$key = md5(empty($key) ? C('DATA_AUTH_KEY') : $key);
$data = str_replace(array('-','_'),array('+','/'),$data);
$mod4 = strlen($data) % 4;
if ($mod4) {
$data .= substr('====', $mod4);
}
$data = base64_decode($data);
$expire = substr($data,0,10);
$data = substr($data,10);

if($expire > 0 && $expire return '';
}
$x = 0;
$len = strlen($data);
$l = strlen($key);
$char = $str = '';

for ($i = 0; $i <$len; $i++) {
if ($x == $l) $x = 0;
$char .= substr($key, $x, 1);
$x++;
}

for ($i = 0; $i <$len; $i++) {
if (ord(substr($data, $i, 1)) $str .= chr((ord(substr($data, $i, 1)) + 256) - ord(substr($char, $i, 1)));
}else{
$str .= chr(ord(substr($data, $i, 1)) - ord(substr($char, $i, 1)));
}
}
return base64_decode($str);
}

function getTaskStatusStr($status = 0,$type = 'apply' , $company = ''){
if ($type == 'comment') return '尚未作出评价';
switch ($status) {
case 0:
return $type == 'apply' ? '已发出任务申请' : $company.'对你发出了任务邀请';
break;
case 1:
return $type == 'apply' ? '企业已通过申请' : '已同意企业的邀请';
break;
case 2:
return $type == 'apply' ? '企业已忽略你的申请' : '你已经忽略企业的邀请';
break;
case 3:
return $type == 'apply' ? '你已完成该任务' : '该任务已经完成';
break;
default:
return '未知的状态';
break;
}
}

function getArea($cache = true){
$area = S ( 'S_Area' );
if (empty ( $area ) || ! $cache) {
// 缓存不存在，或者参数读取缓存。
$areaModel = D('Area');
$area = $areaModel -> where ('status = 3')->order ( 'sort,itemid' )->getField('itemid,title,pid,arrparentid,child');
//把市的省拚出来
foreach ($area as $k=>$v){
//如果是顶级
if ($v['pid']==0){
$areaArr[$v['itemid']]['itemid'] = $v['itemid'];
$areaArr[$v['itemid']]['title'] = $v['title'];
$areaArr[$v['itemid']]['pid'] = $v['pid'];
$areaArr[$v['itemid']]['arrparentid'] = $v['arrparentid'];
$areaArr[$v['itemid']]['child'] = $v['child'];
//上级
$areaArr[$v['itemid']]['upitemid'] = $v['itemid'];
$areaArr[$v['itemid']]['uptitle'] = $v['title'];
}
//查出上级的名称和ID
else {
$areaArr[$v['itemid']]['itemid'] = $v['itemid'];
$areaArr[$v['itemid']]['title'] = $v['title'];
$areaArr[$v['itemid']]['pid'] = $v['pid'];
$areaArr[$v['itemid']]['arrparentid'] = $v['arrparentid'];
$areaArr[$v['itemid']]['child'] = $v['child'];
//上级
$areaArr[$v['itemid']]['upitemid'] = $area[$v['pid']]['itemid'];
$areaArr[$v['itemid']]['uptitle'] = $area[$v['pid']]['title'];
}
}
$area = $areaArr;
S ( 'S_Area' , $area );
}
return $area;
}

?>