Is.php

<?php

namespace Yonna\Foundation;

use DateTime;
use Exception;

class Is
{

    /**
     * 验证手机号码
     * @param $mobile
     * @return bool
     */
    public static function mobile($mobile)
    {
        $subMob = substr($mobile, 0, 2);
        $telList = array(
            '00', '11', '12', '13', '14', '15', '16', '17', '18', '19',
        );
        $bool1 = preg_match('/^(\d{11}|\d{8})$/', $mobile) ? true : false;
        $bool2 = (in_array($subMob, $telList)) ? true : false;
        return ($bool1 && $bool2);
    }

    /**
     * 验证email格式
     * @param $email
     * @return bool
     */
    public static function email($email)
    {
        return preg_match('/^[\w\.\-]+@[\w\-]+(\.[a-z]+){1,2}$/i', $email) ? true : false;
    }

    /**
     * 验证身份证NO
     * @param $idCardNo
     * @param bool $isStrict
     * @return bool
     */
    public static function identityCardNo($idCardNo, $isStrict = false)
    {
        /**
         * 计算身份证校验码，根据国家标准GB 11643-1999
         * @param $idCardBase
         * @return bool|mixed
         */
        function getVerifyBit($idCardBase)
        {
            if (strlen($idCardBase) != 17) {
                return false;
            }
            //加权因子
            $factor = array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2);
            //校验码对应值
            $verify_number_list = array('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2');
            $checksum = 0;
            for ($i = 0; $i < strlen($idCardBase); $i++) {
                $checksum = $checksum + round(substr($idCardBase, $i, 1), 3) * $factor[$i];
            }
            $mod = $checksum % 11;
            $verify_number = $verify_number_list[$mod];
            return $verify_number;
        }

        $idCardLength = strlen($idCardNo);
        //长度验证
        if (!preg_match('/^\d{17}(\d|x)$/i', $idCardNo) and !preg_match('/^\d{15}$/i', $idCardNo)) {
            return false;
        }
        if ($isStrict) {
            //地区验证
            $city = array(11 => "北京", 12 => "天津", 13 => "河北", 14 => "山西", 15 => "内蒙古", 21 => "辽宁", 22 => "吉林", 23 => "黑龙江", 31 => "上海", 32 => "江苏", 33 => "浙江", 34 => " 安徽", 35 => "福建", 36 => "江西", 37 => "山东", 41 => "河南", 42 => "湖北", 43 => " 湖南", 44 => "广东", 45 => "广西", 46 => "海南", 50 => "重庆", 51 => "四川", 52 => " 贵州", 53 => "云南", 54 => "西藏", 61 => "陕西", 62 => "甘肃", 63 => "青海", 64 => " 宁夏", 65 => "新疆", 71 => "台湾", 81 => "香港", 82 => "澳门", 91 => "国外");
            if (!array_key_exists(intval(substr($idCardNo, 0, 2)), $city)) {
                return false;
            }
            //15位身份证验证生日，转换为18位
            if ($idCardLength == 15) {
                $sBirthday = '19' . substr($idCardNo, 6, 2) . '-' . substr($idCardNo, 8, 2) . '-' . substr($idCardNo, 10, 2);
                try {
                    $d = new DateTime($sBirthday);
                    $dd = $d->format('Y-m-d');
                    if ($sBirthday != $dd) return false;
                } catch (Exception $e) {
                }
                $idCardNo = substr($idCardNo, 0, 6) . "19" . substr($idCardNo, 6, 9);//15to18
                $Bit18 = getVerifyBit($idCardNo);//算出第18位校验码
                $idCardNo = $idCardNo . $Bit18;
            }
            //18位身份证处理
            $sBirthday = substr($idCardNo, 6, 4) . '-' . substr($idCardNo, 10, 2) . '-' . substr($idCardNo, 12, 2);
            try {
                $d = new DateTime($sBirthday);
                $dd = $d->format('Y-m-d');
                if ($sBirthday != $dd) return false;
            } catch (Exception $e) {
            }
            //身份证编码规范验证
            $idCardNo_base = substr($idCardNo, 0, 17);
            if (strtoupper(substr($idCardNo, 17, 1)) != getVerifyBit($idCardNo_base)) {
                return false;
            }
        }
        return true;
    }

    /**
     * 验证微信OPENID格式
     * @param $open_id
     * @return bool
     */
    public static function wechatOpenId($open_id)
    {
        return (strlen($open_id) > 15) ? true : false;
    }

    /**
     * 验证IP格式
     * @param $str
     * @return bool|int
     */
    public static function ip($str)
    {
        $ip = explode('.', $str);
        for ($i = 0; $i < count($ip); $i++) {
            if ($ip[$i] > 255) {
                return false;
            }
        }
        return preg_match('/^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$/', $str);
    }

    /**
     * 是否 windows
     * @return bool
     */
    public static function windows()
    {
        return strstr(PHP_OS, 'WIN') ? true : false;
    }

    /**
     * 是否 unix
     * @return bool
     */
    public static function unix()
    {
        return strstr(PHP_OS, 'unix') ? true : false;
    }

    /**
     * 是否 linux
     * @return bool
     */
    public static function linux()
    {
        return strstr(PHP_OS, 'Linux') ? true : false;
    }

    /**
     * 是否 mac
     * @return bool
     */
    public static function mac()
    {
        return strstr(PHP_OS, 'macintosh') ? true : false;
    }

    /**
     * 是否 AJAX
     * @return bool
     */
    public static function ajax()
    {
        return ($_SERVER['HTTP_X_REQUESTED_WITH'] ?? null) === 'XMLHttpRequest';
    }

    /**
     * 是否CGI
     * @return bool
     */
    public static function cgi()
    {
        return (0 === strpos(PHP_SAPI, 'cgi') || false !== strpos(PHP_SAPI, 'fcgi')) ? true : false;
    }

    /**
     * 是否CLI
     * @return bool
     */
    public static function cli()
    {
        return PHP_SAPI == 'cli' ? true : false;
    }

}