agent_server/app/Helpers/common.func.php

<?php
/**
 * 通用函数库
 * @auth nj911<nj-x@gmail.com>
 * @date: 2021-04-18 12:27
 */

use Hashids\Hashids;

/**
 * 获取分页start offset
 * @param $amount
 * @param int $page
 * @param int $page_size
 * @return int|mixed
 */
function get_page_start($amount, $page = 1, $page_size = 20) : int
{
    if (empty($amount)) {
        return $page_size;
    }
    $page_size = empty($page_size) ? 20 : $page_size;
    $page_most = ceil($amount / $page_size);
    if (isset($page)) {
        $page = intval($page);
        if ($page > $page_most) {
            $page = $page_most;
        }
    } else {
        $page = 1;
    }
    $page = max(1, $page);  //找出最大值
    $start_limit = ($page - 1) * $page_size;

    return $start_limit;
}

/**
 * 随机生成指定长度字符串
 * @param int $len 长度
 * @return string
 */
function rand_letter($len = 18) : string
{
    $str = '';
    if ($len <= 0) {
        $len = 18;
    }
    $chars = "abcdefhjmnpqrstuvwxyzABCDEFGHJKLMNPQRSTUVWYXZ";
    $clen = strlen($chars);
    $max = $clen - 1;
    for ($i = 0; $i < $len; $i++) {
        $str .= $chars[mt_rand(0, $max)];
    }
    return $str;
}

/**
 * 随机生成指定长度字符串
 * @param int $len 长度
 * @return string
 */
function rand_str($len = 18)
{
    $str = '';
    if ($len <= 0) {
        $len = 18;
    }
    $chars = "abcdefhjmnpqrstuvwxyz23456789ABCDEFGHJKLMNPQRSTUVWYXZ";
    $clen = strlen($chars);
    $max = $clen - 1;
    for ($i = 0; $i < $len; $i++) {
        $str .= $chars[mt_rand(0, $max)];
    }
    return $str;
}

/**
 * 随机生成字符串
 * @param int $length 长度
 * @param int $numeric 纯数字
 * @return string
 */
function random($length, $numeric = 0) : string
{
    if (version_compare(PHP_VERSION, '4.2.0', '<')) {
        mt_srand((double)microtime() * 1000000);
    } else {
        mt_srand();
    }
    $seed = base_convert(md5(print_r($_SERVER, 1) . microtime()), 16, $numeric ? 10 : 35);
    $seed = $numeric ? (str_replace('0', '', $seed) . '012340567890') : ($seed . 'zZ' . strtoupper($seed));
    $hash = '';
    $max = strlen($seed) - 1;
    for ($i = 0; $i < $length; $i++) {
        $hash .= $seed[mt_rand(0, $max)];
    }
    return $hash;
}

/**
 * json响应成功
 * @param mixed $data 数据
 * @param string $message 消息
 * @return mixed
 */
function json_success($data, $message = '操作成功')
{
    $handshake = '';
    $data = [
        'code' => 200,
        'message' => $message,
        'data' => $data,
        'handshake' => $handshake,
    ];

    return response()->json($data);
}

/**
 * json响应失败
 * @param string $message 消息
 * @param int $code 代码
 * @return \Illuminate\Http\JsonResponse
 */
function json_fail($message, $code = 500, $data = [])
{
    $handshake = '';
    $data = [
        'code'    => $code,
        'message' => $message,
        'data'    => $data,
        'handshake' => $handshake,
    ];

    return response()->json($data);
}


/**
 * 字符串截取函数(按字个数)
 * @param string $string 需要截断的字符串
 * @param int $length 允许字符串显示的最大长度(按字个数)
 * @param string $dot 超出的部分所用替代标识符
 * @return string
 */
function cutstr($string, $length, $dot = '') : string
{
    if (function_exists('mb_strcut')) {
        if (mb_strlen($string) > $length) {
            return mb_substr($string, 0, $length - mb_strlen($dot)) . $dot;
        } else {
            return $string;
        }
    } else {
        return cut_no_mbstring($string, $length, $dot);
    }
}

/**
 * 没有mbstring库字符串截取指定长度
 * @param string $string 字符串
 * @param int $length 截取长度
 * @param string $dot 结尾的字符点点
 * @param string $charset 编码
 * @return string
 */
function cut_no_mbstring($string, $length, $dot = '', $charset = 'utf-8')
{
    if (strlen($string) <= $length) {
        return $string;
    }

    $strcut = '';
    if (strtolower($charset) == 'utf-8') {
        $n = $tn = $noc = 0;
        while ($n < strlen($string)) {
            $t = ord($string[$n]);
            if ($t == 9 || $t == 10 || (32 <= $t && $t <= 126)) {
                $tn = 1;
                $n++;
                $noc++;
            } elseif (194 <= $t && $t <= 223) {
                $tn = 2;
                $n += 2;
                $noc += 2;
            } elseif (224 <= $t && $t < 239) {
                $tn = 3;
                $n += 3;
                $noc += 2;
            } elseif (240 <= $t && $t <= 247) {
                $tn = 4;
                $n += 4;
                $noc += 2;
            } elseif (248 <= $t && $t <= 251) {
                $tn = 5;
                $n += 5;
                $noc += 2;
            } elseif ($t == 252 || $t == 253) {
                $tn = 6;
                $n += 6;
                $noc += 2;
            } else {
                $n++;
            }

            if ($noc >= $length) {
                break;
            }
        }
        if ($noc > $length) {
            $n -= $tn;
        }

        $strcut = substr($string, 0, $n);
    } else {
        for ($i = 0; $i < $length - strlen($dot) - 1; $i++) {
            $strcut .= ord($string[$i]) > 127 ? $string[$i] . $string[++$i] : $string[$i];
        }
    }

    return $strcut . $dot;
}

/**
 * 获取IP信息
 * @return array
 */
function client_ip_info()
{
    $ip = request()->getClientIp();
    $arr_ipa = \Zhuzhichao\IpLocationZh\Ip::find($ip);
    array_pop($arr_ipa);    //剔除最后一个下标, 国标
    $arr_ipa = array_filter($arr_ipa);
    $ip_address = !empty($arr_ipa) ? implode('|', $arr_ipa) : '';

    return [
        $ip,
        $ip_address,
    ];
}

/**
 * 格式化页码入参
 * @param $page
 * @return int
 */
function format_page($page)
{
    $page = intval($page);
    if ($page <= 0) {
        $page = 1;
    }
    if ($page > PHP_INT_MAX) {
        $page = PHP_INT_MAX;
    }

    return $page;
}


/**
 * 密码星号加密
 * @param string $str 输入的字符串
 * @return string
 */
function pass_encode($str)
{
    $len = strlen($str);
    if ($len < 1) {
        return '';
    }
    $new = '';
    for ($i = 0; $i < $len; $i++) {
        $new .= ($i == 0 || $i == $len - 1) ? $str[$i] : '*';
    }
    return $new;
}

/**
 * 密码星号解密
 * @param string $new 明文密码
 * @param string $old 原始密码
 * @return mixed
 */
function pass_decode($new, $old)
{
    return $new == pass_encode($old) ? $old : $new;
}

/**
 * 加密手机号
 * @param $mobile
 * @return string
 */
function encode_mobile($mobile)
{
    $str = '';
    if ($mobile) {
        $len = strlen($mobile);
        for ($i = 0; $i < $len; $i++) {
            $str .= ($i < 5 || $i > $len - 4) ? $mobile[$i] : '*';
        }
    }

    return $str;
}

/**
 * 更新OpCache
 * 生成缓存php文件的地方都需要调用此函数
 * @return void
 */
function opcache_update()
{
    if (function_exists('opcache_reset')) {
        opcache_reset();
    }
}

/**
 * 获取相对依赖双斜杠开头的URL地址
 * @param $url
 * @return mixed
 */
function get_slashes_url($url)
{
    if (preg_match('/^(http|https)\:\/\/(.*?)$/i', $url, $arr_matches)) {
        return '//' . $arr_matches[2];
    } else {
        return $url;
    }
}


/**
 * AES 加密
 * @param mixed $content 明文
 * @param string $key     密钥
 * @param string $iv     向量，必须为数字
 * @param string $cipher     算法.
 * @param int $option     标记的按位或： OPENSSL_RAW_DATA=1 、 OPENSSL_ZERO_PADDING=2.
 * @return string
 */
function aes_encrypt($content, $key, $iv = '', $cipher = 'AES-256-CBC', $option = 1)
{
    $ivLength = openssl_cipher_iv_length($cipher);  // 向量长度.
    /*$iv = openssl_random_pseudo_bytes($ivLength);   // 根据长度生成向量.*/
    //$option = OPENSSL_RAW_DATA; // 标记的按位或： OPENSSL_RAW_DATA=1 、 OPENSSL_ZERO_PADDING=2.
    $tag = null;    // 使用 AEAD 密码模式（GCM 或 CCM）时传引用的验证标签.
    $aad = '';  // 附加的验证数据.
    $tagLength = 16;    // 验证 tag 的长度。GCM 模式时，它的范围是 4 到 16.

    $iv = (string)$iv;

    return @openssl_encrypt($content, $cipher, $key, $option, $iv);
}

/**
 * AES 解密
 * @param string $content base64密文
 * @param string $key     密钥
 * @param string $iv     向量，必须为数字
 * @param string $cipher     算法.
 * @param int $option     标记的按位或： OPENSSL_RAW_DATA=1 、 OPENSSL_ZERO_PADDING=2.
 * @return string
 */
function aes_decrypt($content, $key, $iv = '', $cipher = 'AES-256-CBC', $option = 1)
{
    $iv = (string)$iv;
    return @openssl_decrypt($content, $cipher, $key, $option, $iv);
}

/**
 * 加密ID.
 * @param $id
 * @param int $length 长度
 * @return string
 */
function hashEncodeId($id, $length = 6)
{
    $hashids = new Hashids(config('hashids.salt', ''), 6);

    return $hashids->encode($id);
}

/**
 * 解密ID.
 * @param $str
 * @return string
 */
function hashDecodeId($str)
{
    $hashids = new Hashids(config('hashids.salt', ''), 6);
    $arr = $hashids->decode($str);

    return implode('', $arr);
}


/**
/**
 * 简单的转html代码
 * @param string $str 源字符串.
 * @return string
 */
function code2html($str)
{
    $str = str_replace("<", "&lt;", $str);
    $str = str_replace(">", "&gt;", $str);
    $str = str_replace(" ", "&nbsp;", $str);
    $str = str_replace("\r\n", "<br />", $str);
    $str = str_replace("\n", "<br />", $str);

    return $str;
}

/**
 * 获取最大上传数量
 * @param int $config_size  配置最大尺寸
 * @return array
 */
function get_upload_sys_info($config_size = 0) {
    $get_upload_max_size_units = strtoupper(trim(ini_get("upload_max_filesize")));		//获取服务器支持最大上传文件大小 有单位
    $get_upload_max_size = substr($get_upload_max_size_units,0,strlen($get_upload_max_size_units)-1);		//无单位
    $units = substr($get_upload_max_size_units,-1,1);		//获取单位
    switch($units) {		//单位换算
        case "G":
            $k_upload_max_size = $get_upload_max_size*1024*1024;
            break;
        case "M":
            $k_upload_max_size = $get_upload_max_size*1024;
            break;
        case "K":
        default:
            $k_upload_max_size = $get_upload_max_size;
            break;
    }

    $upload_max_size = $k_upload_max_size;
    if($config_size) {
        if($config_size < $k_upload_max_size) {
            $upload_max_size = $config_size;
        }
    }
    $arr = array(
        'get_upload_max_size_units' => $get_upload_max_size_units,    //系统有单位大小
        'get_upload_max_size' => $get_upload_max_size,    //系统无单位大小
        'k_upload_max_size' => $k_upload_max_size,    //单位为K的大小
        'upload_max_size' => $upload_max_size //当前环境下大小单位K
    );
    return $arr;
}

/**
 * 获取文件的扩展名，不包含.
 * @param string $filename  文件名
 * @return string
 */
function file_ext($filename) {
    return strtolower(trim(substr(strrchr($filename, '.'), 1)));
}

/**
 * 获取远程文件的header信息
 * @param string $url url地址
 * @param string $return_type
 * @return array|bool|string
 */
function get_remote_file_info($url, $return_type = 'exists') {
    $head = @get_headers($url, true);
    $request_status = false;
    if(is_array($head))	{
        $t = explode(" ",$head[0]);
        if(strtoupper($t[count($t)-1]) == "OK") {
            $request_status = true;
        }
    }
    if ($request_status) {
        if ($return_type == 'exists') {
            return  $request_status;
        } elseif ($return_type == 'size') {
            return trim($head['Content-Length']); //单位bytes 字节
        } elseif ($return_type == 'type') {
            return trim($head['Content-Type']);
        } else {
            return $head;
        }
    } else {
        return false;
    }
}

function get_url_by_name($file_name)
{
    $url = $file_name;
    $name = basename($file_name);
    $serverNo = substr($name, 0, 3);
    $conf = config('image_servers');
    if (isset($conf['servers'][$serverNo]['base_url'])) {
        $url = rtrim($conf['servers'][$serverNo]['base_url'], '/') . $file_name;
    }

    return $url;
}
/**
 * 凯撒对称加密核心算法
 * @param string $str    字符串源
 * @param string $type   类型,encode=加密,decode=解密
 * @param string $scale  范围, c=中文, l=字母, n=数字,多种用半角逗号分隔开
 * @param int    $offset 偏移
 * @return string
 */
function caesar_cipher($str, $type = 'encode', $scale = 'c,l,n', $offset = 3)
{
    if (empty($str)) {
        return '';
    }
    if (!$offset) {
        // 无偏移, 直接返回原来的字符串
        return $str;
    }
    if (empty($scale)) {
        $scale = 'c,l,n';
    }
    if ($type == 'decode') {
        // 解密反向偏移
        $offset = -$offset;
    }
    $func = function ($match, $offset, $start, $end) {
        $min = ord($start);
        $max = ord($end);
        $flag_old = ord($match);
        $flag = $flag_old + $offset;
        if ($offset > 0) {
            if ($flag > $max) {
                $flag -= ($max - $min) + 1;
            }
        } elseif ($offset < 0) {
            if ($flag < $min) {
                $flag += ($max - $min) + 1;
            }
        }

        return chr($flag);
    };
    $arr_scale = explode(',', $scale);  //允许的范围转换成数组,方便判断
    $pattern = '/[\x{4e00}-\x{9fbb}a-zA-Z0-9]/u';
    $result = preg_replace_callback(
        $pattern,
        function ($matches) use ($offset, $arr_scale, $func) {
            $str = $match = $matches[0];
            if (preg_match('/[\x{4e00}-\x{9fbb}]/u', $match)) {
                // 汉字
                if (in_array('c', $arr_scale)) {
                    $min = intval(hexdec(unpack("H6codes", "一")['codes']));
                    $max = intval(hexdec(unpack("H6codes", "龻")['codes']));
                    $arr_hex = unpack("H6codes", $match);
                    $zi_hex = $arr_hex['codes'];
                    $zi_dec = intval(hexdec($zi_hex));
                    $flag = $zi_dec + $offset;
                    if ($offset > 0) {
                        if ($flag > $max) {
                            $flag -= ($max - $min) + 1;
                        }
                    } elseif ($offset < 0) {
                        if ($flag < $min) {
                            $flag += ($max - $min) + 1;
                        }
                    }
                    $str_hex = dechex($flag);

                    $str = pack("H". strlen($str_hex), $str_hex);
                }
            } elseif (preg_match('/[0-9]/', $match)) {
                // 数字
                if (in_array('n', $arr_scale)) {
                    $str = $func($match, $offset, '0', '9');
                }
            } elseif (preg_match('/[a-z]/', $match)) {
                // 小写字母
                if (in_array('l', $arr_scale)) {
                    $str = $func($match, $offset, 'a', 'z');
                }
            } elseif (preg_match('/[A-Z]/', $match)) {
                // 大写字母
                if (in_array('l', $arr_scale)) {
                    $str = $func($match, $offset, 'A', 'Z');
                }
            }

            return $str;
        },
        $str
    );

    return $result;
}

/**
 * 凯撒对称加密
 * @param string $str    字符串源
 * @param string $scale  范围, c=中文, l=字母, n=数字,多种用半角逗号分隔开
 * @param int    $offset 偏移
 * @return string
 */
function caesar_encode($str, $scale = 'c,l,n', $offset = 3)
{
    return caesar_cipher($str, 'encode', $scale, $offset);
}

/**
 * 凯撒对称解密
 * @param string $str    字符串源
 * @param string $scale  范围, c=中文, l=字母, n=数字,多种用半角逗号分隔开
 * @param int    $offset 偏移
 * @return string
 */
function caesar_decode($str, $scale = 'c,l,n', $offset = 3)
{
    return caesar_cipher($str, 'decode', $scale, $offset);
}

/**
 * 文件hash md5,大文件针对前10M数据.
 * @var $filePath string 文件路径
 * @var $maxSize int 部分hash的尺寸，单位字节
 * @return string
 */
function hash_md5_file($filePath, $maxSize = 10485760) {
    $fileSize = filesize($filePath);
    $md5fileMaxSize = 60 * 1024 * 1024;
    if ($fileSize <= $md5fileMaxSize) {
        return md5_file($filePath);
    } else {
        $chunkSize = 65536;
        $size = $maxSize;
        $fp = fopen($filePath, 'r');
        $cxt  = hash_init('md5');   // 初始化.
        while ($size > 0) {
            $buffer = fread($fp, min($size, $chunkSize));
            hash_update($cxt, $buffer);
            $size -= $chunkSize;
        }
        $hash = hash_final($cxt);
        fclose($fp);    // 记得释放文件.

        return $hash;
    }
}

/**
 * 转换至mongoISODate格式.
 * @param mixed $date 任意有效的时间格式.
 * @param mixed $tz 时区
 * @return \MongoDB\BSON\UTCDateTime
 */
function toMongoIsoDate($date, $tz = null)
{
    if (empty($tz)) {
        $tz = env('APP_TIMEZONE', null);
    }


    $millSecond = \Carbon\Carbon::parse($date)->timestamp * 1000;

    $isoDateObj = new MongoDB\BSON\UTCDateTime($millSecond);

    $isoDate = $isoDateObj->toDateTime()->setTimezone(new DateTimeZone($tz));

    return $isoDateObj;
}

/**
 * 修正东8区时间
 *
 * @param $date
 * @return false|string
 */
function timeCorrection($date)
{
    return date("Y-m-d H:i:s", strtotime($date . ' -8 hour'));
}

/**
 * mongoIso时间转CarbonTime时间
 * @param \MongoDB\BSON\UTCDateTime $utcDate
 * @return \Carbon\Carbon
 */
function mongoIsoDateToCarbonTime(\MongoDB\BSON\UTCDateTime $utcDate)
{
    return \Carbon\Carbon::parse($utcDate->toDateTime()->setTimezone(new DateTimeZone(env('APP_TIMEZONE'))));
}