php工具类

//树function tree(&$data,$pid = 0,$count = 1) {    static $treeList = array();    foreach ($data as $key => $value){        if($value['pid']==$pid){            $value['count'] = $count;            $treeList []=$value;//            unset($data[$key]);            tree($data,$value['id'],$count+1);        }    }    return $treeList;}//树function generateTree($list, $pk = 'id', $pid = 'pid', $child = 'child', $root = 0){    $tree     = array();    $packData = array();    foreach ($list as $data) {        $packData[$data[$pk]] = $data;    }    foreach ($packData as $key => $val) {        if ($val[$pid] == $root) {            //代表跟节点, 重点一            $tree[] = &$packData[$key];        } else {            //找到其父类,重点二            $packData[$val[$pid]][$child][] = &$packData[$key];        }    }    return $tree;}//API签名验证tokenfunction api_sign($param, $origin=false){    $sign = concat($param);    if($origin){        return $sign;    }    return hash('md5', $sign);}function concat(array $param){    ksort($param);    $first = '';    foreach ($param as $key => $val) {        if(is_array($val)) {            $first .= concat($val);            continue;        }        $first .= $val;        if(!empty($val)) {            $first .= $val;        }    }    return $first;}//订单号function getOrderSn(){    $yCode = array('A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J');    $orderSn = $yCode[intval(date('Y')) - 2011] . strtoupper(dechex(date('m'))) . date('d') . substr(time(), -5) . substr(microtime(), 2, 5) . sprintf('%02d', rand(0, 99));    return $orderSn;}//银行卡号校验function luhm($s) {    $n = 0;    for ($i = strlen($s); $i >= 1; $i--) {        $index=$i-1;        //偶数位        if ($i % 2==0) {            $n += $s{$index};        } else {//奇数位            $t = $s{$index} * 2;            if ($t > 9) {                $t = (int)($t/10)+ $t%10;            }            $n += $t;        }    }    return ($n % 10) == 0;}//判断请求http或者httpsfunction get_http(){    $http_type = ((isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on') || (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https')) ? 'https://' : 'http://';    return $http_type;}//随机红包function sendHB($money_total, $num) {    if($money_total < $num * 0.01) {        exit('钱太少');    }    if($money_total > 999) {        exit('钱太多');    }    $rand_arr = array();    for($i=0; $i<$num; $i++) {        $rand = rand(1, 100);        $rand_arr[] = $rand;    }    $rand_sum = array_sum($rand_arr);    $rand_money_arr = array();    $rand_money_arr = array_pad($rand_money_arr, $num, 0.01);  //保证每个红包至少0.01    foreach ($rand_arr as $key => $r) {        $rand_money = number_format($money_total*$r/$rand_sum, 2);        if($rand_money <= 0.01 || number_format(array_sum($rand_money_arr), 2) >= number_format($money_total, 2)) {            $rand_money_arr[$key] = 0.01;        } else {            $rand_money_arr[$key] = $rand_money;        }    }    $max_index = $max_rand = 0;    foreach ($rand_money_arr as $key => $rm) {        if($rm > $max_rand) {            $max_rand = $rm;            $max_index = $key;        }    }    unset($rand_money_arr[$max_index]);    //这里的array_sum($rand_money_arr)肯定是小于$money_total的    $rand_money_arr[$max_index] = number_format($money_total - array_sum($rand_money_arr), 2);    ksort($rand_money_arr);    return $rand_money_arr;}//二位数组根据一个健值大小排序排序function arr_sort($arr){    $flag = array();    foreach($arr as $arr2){        $flag[] = $arr2["money"];    }    array_multisort($flag, SORT_DESC, $arr);    return $arr;}/** * @param $latitude1 纬度 * @param $longitude1 经度 * @param $latitude2 * @param $longitude2 * @return array * 获取两点之间的距离 */function getDistanceBetweenPointsNew($latitude1, $longitude1, $latitude2, $longitude2) {    $theta = $longitude1 - $longitude2;    $miles = (sin(deg2rad($latitude1)) * sin(deg2rad($latitude2))) + (cos(deg2rad($latitude1)) * cos(deg2rad($latitude2)) * cos(deg2rad($theta)));    $miles = acos($miles);    $miles = rad2deg($miles);    $miles = $miles * 60 * 1.1515;    $feet = $miles * 5280;    $yards = $feet / 3;    $kilometers = $miles * 1.609344;    $meters = $kilometers * 1000;    return compact('miles','feet','yards','kilometers','meters');}//随机32位字符串function nonce_str(){    $str = '';    $num = 'QWERTYUIOPASDFGHJKLZXCVBNMqwertyuiopasdfghjklzxcvbnm';    for ($i = 0; $i <32; $i ++){        $str .= $num[rand(0,48)];    }    return $str;}/** * 封装base64位图片上传 */function base64_upload($base64) {  $base64_image = str_replace(' ', '+', $base64);    //post的数据里面，加号会被替换为空格，需要重新替换回来，假如不是post的数据，则注释掉这一行    if (preg_match('/^(data:\s*image\/(\w+);base64,)/', $base64_image, $result)){        //匹配成功        if($result[2] == 'jpeg'){            $image_name = uniqid().'.jpg';            //纯粹是看jpeg不爽才替换的        }else{            $image_name = uniqid().'.'.$result[2];        }        $image_file = "./Uploads/{$image_name}";        //服务器文件存储路径        if (file_put_contents($image_file, base64_decode(str_replace($result[1], '', $base64_image)))){            return './Uploads/'.$image_name;        }else{            return false;        }    }else{        return false;    }}