身份证前两位对照身份表

$province = [
                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'

            ];

如果你在laravel框架里，不妨在helper文件里写

//从身份证里取所在地区
if (!function_exists('get_province_by_card')) {
    function get_province_by_card($card = '')
    {
        if (!empty($card)) {
            $province = [
                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'

            ];
            return array_get($province, substr($card, 0, 2), '');
        }
        return $card;
    }
}