常用的公共方法
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PHP,代码,后端

511 字
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26 分钟 
/**
 * 系统加密方法
 * @param string $data 要加密的字符串
 * @param string $key  加密密钥
 * @return string
 * @author Forest <senlin6@126.com>
 */
function system_encrypt($data, $key = '') {

    $key  = md5(empty($key) ? config('common.admin_user_encrypt_string') : $key);
    $salt = substr($key, 0, 6);
    return md5($data.$salt);
}


/**
 * 设置登录的token  - 唯一性的
 * @param string $phone
 * @return string
 */
function setToken($phone = '') {
    $str = md5(uniqid(md5(microtime(true)), true));
    $str = sha1($str.$phone);
    return $str;
}


/**
 * 获取
 * @param $model
 * @param $field
 */
function getUniqueNum($model,$field,$len = 6,$string = false,$prefix = '')
{
    do{
        $randNum = makeRand($len,$string);
        $randNum = $prefix ? $prefix.$randNum : $randNum;
    }while ($model->where($field,$randNum)->find());
    return $randNum;
}

/**
 * 生成随机位数
 * @param  integer $len 长度
 * @return string
 */
function makeRand($len = 6,$string = false)
{
    if($string) {
        $seed = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890';
    } else {
        $seed = '0123456789';
    }

    return substr(str_shuffle(str_repeat($seed, $len)), 0, $len);
}

/**
     * 生成随机数
     * @param number $length
     * @return number
     */
    function generateNumber($length = 6){
        return rand(pow(10, ($length - 1)), pow(10, $length) - 1);
    }

/**
     * 生成随机字符串
     * @param number $length
     * @param string $chars
     * @return string
     */
    function generateString($length = 6, $chars = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz')
    {
        $chars = str_split($chars);

        $chars = array_map(function($i) use($chars) {
            return $chars[$i];
        }, array_rand($chars, $length));

        return implode($chars);
    }

/**
 * 把返回的数据集转换成Tree
 * @param array $list 要转换的数据集
 * @param string $pid parent标记字段
 * @param string $level level标记字段
 * @return array
 */
function list_to_tree($list, $pk='id', $pid = 'pid', $child = '_child', $root = 0) {
    // 创建Tree
    $tree = array();
    if(is_array($list)) {
        // 创建基于主键的数组引用
        $refer = array();
        foreach ($list as $key => $data) {
            $refer[$data[$pk]] =& $list[$key];
        }
        foreach ($list as $key => $data) {
            // 判断是否存在parent
            $parentId =  $data[$pid];
            if ($root == $parentId) {
                $tree[] =& $list[$key];
            }else{
                if (isset($refer[$parentId])) {
                    $parent =& $refer[$parentId];
                    $parent[$child][] =& $list[$key];
                }
            }
        }
    }
    return $tree;
}

/**
 * @return float
 * 获取毫秒
 */
function getMillisecond() {
    list($t1, $t2) = explode(' ', microtime());
    return (float)sprintf('%.0f',(floatval($t1)+floatval($t2))*1000);
}

/**
 * 检查$pos(推荐位的值)是否包含指定推荐位$contain
 * @param number $pos 推荐位的值
 * @param number $contain 指定推荐位
 * @return boolean true 包含 ， false 不包含
 * @author huajie <banhuajie@163.com>
 */
function check_document_position($pos = 0, $contain = 0){
    if(empty($pos) || empty($contain)){
        return false;
    }

    //将两个参数进行按位与运算，不为0则表示$contain属于$pos
    $res = $pos & $contain;
    if($res !== 0){
        return true;
    }else{
        return false;
    }
}

/**
 * 保留小数点后两位
 * @param $num
 * @return float|int
 */
function generateDecimal($num,$scale = 2){
    return number_format($num,$scale,'.','');
//    return bcdiv(floor(bcmul($num,100)),100,$scale);
}


function geturl($url){
    $curl = curl_init(); // 启动一个CURL会话
    curl_setopt($curl, CURLOPT_URL, $url);
    curl_setopt($curl, CURLOPT_HEADER, 0);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, 2); // 跳过证书检查
    curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, 2);  // 从证书中检查SSL加密算法是否存在
    $tmpInfo = curl_exec($curl);     //返回api的json对象
    //关闭URL请求
    curl_close($curl);
    return json_decode($tmpInfo,true);
}

function posturl($url,$data){
    $data  = json_encode($data);
    $headerArray =array("Content-type:application/json;charset='utf-8'","Accept:application/json");
    $curl = curl_init();
    curl_setopt($curl, CURLOPT_URL, $url);
    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
    curl_setopt($curl, CURLOPT_SSL_VERIFYHOST,FALSE);
    curl_setopt($curl, CURLOPT_POST, 1);
    curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
    curl_setopt($curl,CURLOPT_HTTPHEADER,$headerArray);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
    $output = curl_exec($curl);
    curl_close($curl);
    return json_decode($output,true);
}

/**
 * curl请求指定url (post)
 * @param $url
 * @param array $data
 * @return mixed
 */
function curlPost($url, $data = [])
{
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST,FALSE);
    $result = curl_exec($ch);
    curl_close($ch);
    return $result;
}

/**
 * curl请求指定url (get)
 * @param $url
 * @param array $data
 * @return mixed
 */
function curl($url, $data = [])
{
    // 处理get数据
    if (!empty($data)) {
        $url = $url . '?' . http_build_query($data);
    }
    $curl = curl_init();
    curl_setopt($curl, CURLOPT_URL, $url);
    curl_setopt($curl, CURLOPT_HEADER, false);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);//这个是重点。
    $result = curl_exec($curl);
    curl_close($curl);
    return $result;
}


/**
 * 根据出生日期计算年龄
 * @param $birthday
 * @return bool|int|mixed|string
 */
function birthday($birthday){
    $age = strtotime($birthday);
    if($age === false){
        return false;
    }
    list($y1,$m1,$d1) = explode("-",date("Y-m-d",$age));
    $now = strtotime("now");
    list($y2,$m2,$d2) = explode("-",date("Y-m-d",$now));
    $age = $y2 - $y1;
    if((int)($m2.$d2) < (int)($m1.$d1))
        $age -= 1;
    return $age;
}

// 秒转时间字符串
    function secondToStr($second){
        $time = time()-$second;
        if($time <= 0){
            return '0秒前';
        }
        $d = floor($time / (3600*24));
        $h = floor(($time % (3600*24)) / 3600);
        $m = floor((($time % (3600*24)) % 3600) / 60);
        $s = floor((($time % (3600*24)) % 3600) % 60);
        if($d>'0'){
            if($d<30){
                return $d.'天前';
            }else{
                return date('Y-m-d H:i:s',$second);
            }

        }else{
            if($h!='0'){
                return $h.'小时前';
            }elseif($m!='0'){
                return $m.'分钟前';
            }elseif($s!='0'){
                return $s.'秒前';
            }
        }
    }

/**
     * 根据生日计算星座
     */
    function constellation($birthday)
    {

        //    传入$birthday格式如：2018-05-06
        $month = intval(substr($birthday, 5, 2));
        $day = intval(substr($birthday, 8, 2));
        if ($month < 1 || $month > 12 || $day < 1 || $day > 31)
        {
            return NULL;
        }
        $signs = array(
            array('20' => '水瓶座'),
            array('19' => '双鱼座'),
            array('21' => '白羊座'),
            array('20' => '金牛座'),
            array('21' => '双子座'),
            array('22' => '巨蟹座'),
            array('23' => '狮子座'),
            array('23' => '处女座'),
            array('23' => '天秤座'),
            array('24' => '天蝎座'),
            array('22' => '射手座'),
            array('22' => '摩羯座')
        );
        list($start, $name) = [key($signs[$month - 1]), current($signs[$month - 1])];
        if ($day < $start)
        {
            $vo = $signs[($month - 2 < 0) ? 11 : $month - 2];
            list($start, $name) = [key($vo), current($vo)];
        }

        return $name;
    }

/**
     * 计算两组经纬度坐标 之间的距离
     * params ：lat1 纬度1； lng1 经度1； lat2 纬度2； lng2 经度2； len_type （1:m or 2:km);
     * return m or km
     */
    function getDistance($lat1, $lng1, $lat2, $lng2, $len_type = 1, $decimal = 2)
    {
        $pi = pi();
        $earth_radius = 6378.137;//地球半径
        $radLat1 = $lat1 * $pi / 180.0;
        $radLat2 = $lat2 * $pi / 180.0;
        $a = $radLat1 - $radLat2;
        $b = ($lng1 * $pi / 180.0) - ($lng2 * $pi / 180.0);
        $s = 2 * asin(sqrt(pow(sin($a/2),2) + cos($radLat1) * cos($radLat2) * pow(sin($b/2),2)));
        $s = $s * $earth_radius;
        $s = round($s * 1000);
        if ($len_type > 1)
        {
            $s /= 1000;
        }
        return round($s, $decimal);
    }

    /**
     * 求两个已知经纬度之间的距离,单位为m/km
     * @param $lng1
     * @param $lat1
     * @param $lng2
     * @param $lat2
     * @return float|int
     */
    function getDistance2($lng1, $lat1, $lng2, $lat2) {
        // 将角度转为狐度
        $radLat1 = deg2rad($lat1); //deg2rad()函数将角度转换为弧度
        $radLat2 = deg2rad($lat2);
        $radLng1 = deg2rad($lng1);
        $radLng2 = deg2rad($lng2);
        $a = $radLat1 - $radLat2;
        $b = $radLng1 - $radLng2;
        $s = 2 * asin(sqrt(pow(sin($a / 2), 2) + cos($radLat1) * cos($radLat2) * pow(sin($b / 2), 2))) * 6378.137 * 1000;
        if($s<1000){
            $s = bcdiv($s,1,0).'m';
        }else if($s < 600000){
            $s = bcdiv($s,1000,1).'km';
        }else{
            $s = '>600km';
        }
        return $s;
    }

/**
 * 隐藏敏感字符
 * @param $value
 * @return string
 */
function substr_cut($value)
{
    $strlen = mb_strlen($value, 'utf-8');
    if ($strlen <= 1) return $value;
    $firstStr = mb_substr($value, 0, 1, 'utf-8');
    $lastStr = mb_substr($value, -1, 1, 'utf-8');
    return $strlen == 2 ? $firstStr . str_repeat('*', $strlen - 1) : $firstStr . str_repeat("*", $strlen - 2) . $lastStr;
}

/**
 * 驼峰命名转下划线命名
 * @param $str
 * @return string
 */
function toUnderScore($str)
{
    $dstr = preg_replace_callback('/([A-Z]+)/', function ($matchs) {
        return '_' . strtolower($matchs[0]);
    }, $str);
    return trim(preg_replace('/_{2,}/', '_', $dstr), '_');
}

/**
 * 多维数组合并
 * @param $array1
 * @param $array2
 * @return array
 */
function array_merge_multiple($array1, $array2)
{
    $merge = $array1 + $array2;
    $data = [];
    foreach ($merge as $key => $val) {
        if (
            isset($array1[$key])
            && is_array($array1[$key])
            && isset($array2[$key])
            && is_array($array2[$key])
        ) {
            $data[$key] = array_merge_multiple($array1[$key], $array2[$key]);
        } else {
            $data[$key] = isset($array2[$key]) ? $array2[$key] : $array1[$key];
        }
    }
    return $data;
}

/**
 * 二维数组排序
 * @param $arr
 * @param $keys
 * @param bool $desc
 * @return mixed
 */
function array_sort($arr, $keys, $desc = false)
{
    $key_value = $new_array = array();
    foreach ($arr as $k => $v) {
        $key_value[$k] = $v[$keys];
    }
    if ($desc) {
        arsort($key_value);
    } else {
        asort($key_value);
    }
    reset($key_value);
    foreach ($key_value as $k => $v) {
        $new_array[$k] = $arr[$k];
    }
    return $new_array;
}

/**
 * 过滤emoji表情
 * @param $text
 * @return null|string|string[]
 */
function filter_emoji($text)
{
    // 此处的preg_replace用于过滤emoji表情
    // 如需支持emoji表情, 需将mysql的编码改为utf8mb4
    return preg_replace('/[\xf0-\xf7].{3}/', '', $text);
}


/**
 * 获取全局唯一标识符
 * @param bool $trim
 * @return string
 */
function getGuidV4($trim = true)
{
    // Windows
    if (function_exists('com_create_guid') === true) {
        $charid = com_create_guid();
        return $trim == true ? trim($charid, '{}') : $charid;
    }
    // OSX/Linux
    if (function_exists('openssl_random_pseudo_bytes') === true) {
        $data = openssl_random_pseudo_bytes(16);
        $data[6] = chr(ord($data[6]) & 0x0f | 0x40);    // set version to 0100
        $data[8] = chr(ord($data[8]) & 0x3f | 0x80);    // set bits 6-7 to 10
        return vsprintf('%s%s-%s-%s-%s-%s%s%s', str_split(bin2hex($data), 4));
    }
    // Fallback (PHP 4.2+)
    mt_srand((double)microtime() * 10000);
    $charid = strtolower(md5(uniqid(rand(), true)));
    $hyphen = chr(45);                  // "-"
    $lbrace = $trim ? "" : chr(123);    // "{"
    $rbrace = $trim ? "" : chr(125);    // "}"
    $guidv4 = $lbrace .
        substr($charid, 0, 8) . $hyphen .
        substr($charid, 8, 4) . $hyphen .
        substr($charid, 12, 4) . $hyphen .
        substr($charid, 16, 4) . $hyphen .
        substr($charid, 20, 12) .
        $rbrace;
    return $guidv4;
}

/**
 * json 转换true,false,数字转成vue可直接用的
 */
function jsonRecursive(&$array)
{
    foreach ($array as $key => $value) {
        if (is_array($value)) {
            jsonRecursive($array[$key]);
        } else {
            if($value == 'true'){
                $array[$key] = true;
            } else if($value == 'false'){
                $array[$key] = false;
            } else if(is_numeric($value)){
                if(is_int($value + 0)){
                    $array[$key] = intval($value);
                }else if(is_float($value + 0)){
                    $array[$key] = floatval($value);
                }
            }
        }
    }
}
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