mendian/app/common.php

<?php
/**
 * Niushop商城系统 - 团队十年电商经验汇集巨献!
 * =========================================================
 * Copy right 2019-2029 山西牛酷信息科技有限公司, 保留所有权利。
 * ----------------------------------------------
 * 官方网址: https://www.niushop.com.cn
 * 这不是一个自由软件！您只能在不用于商业目的的前提下对程序代码进行修改和使用。
 * 任何企业和个人不允许对程序代码以任何形式任何目的再发布。
 * =========================================================
 */

// 应用公共文件
// 除了 E_NOTICE，报告其他所有错误
//error_reporting(E_ALL ^ E_NOTICE);
//error_reporting(E_ERROR | E_WARNING | E_PARSE);
error_reporting(E_NOTICE);

use extend\QRcode as QRcode;
use think\facade\Session;
use think\facade\Event;
use app\model\system\Addon;

/*****************************************************基础函数*********************************************************/
/**
 * 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
	$tree = [];
	if (!is_array($list)) :
		return false;
	
	endif;
	// 创建基于主键的数组引用
	$refer = [];
	foreach ($list as $key => $data) {
		$refer[ $data[ $pk ] ] = &$list[ $key ];
		$refer[ $data[ $pk ] ][ $child ] = [];
		$refer[ $data[ $pk ] ]['child_num'] = 0;
	}
	foreach ($refer as $key => $data) {
		// 判断是否存在parent
		$parentId = $data[ $pid ];
		if ($root == $parentId) {
			$tree[ $key ] = &$refer[ $key ];
		} else if (isset($refer[ $parentId ])) {
			is_object($refer[ $parentId ]) && $refer[ $parentId ] = $refer[ $parentId ]->toArray();
			$parent = &$refer[ $parentId ];
			$parent[ $child ][ $key ] = &$refer[ $key ];
			$parent['child_num']++;
		}
	}
	return $tree;
}

/**
 * 把返回的数据集转换成Tree (不要key)
 *
 * @param array $list
 *            要转换的数据集
 * @param string $pid
 *            parent标记字段
 * @param string $level
 *            level标记字段
 * @return array
 */
function list_to_tree_value($list, $pk = 'id', $pid = 'pid', $child = '_child', $root = 0)
{
    // 创建Tree
    $tree = [];
    if (!is_array($list)) :
        return false;

    endif;
    // 创建基于主键的数组引用
    $refer = [];
    foreach ($list as $key => $data) {
        $refer[ $data[ $pk ] ] = &$list[ $key ];
        if ($data[$pid] == $root){
            $refer[ $data[ $pk ] ][ $child ] = [];
        }
        //$refer[ $data[ $pk ] ]['child_num'] = 0;
    }
    //echo "<pre>";print_r($refer);exit;
    foreach ($refer as $key => $data) {
        // 判断是否存在parent
        $parentId = $data[ $pid ];
        //echo "<pre>";print_r($parentId);exit;
        if ($root == $parentId) {
            $tree[] = &$refer[ $key ];
        } else if (isset($refer[ $parentId ])) {
            is_object($refer[ $parentId ]) && $refer[ $parentId ] = $refer[ $parentId ]->toArray();
            $parent = &$refer[ $parentId ];
            $parent[ $child ][] = &$refer[ $key ];
            //$parent['child_num']++;
        }
    }
    //echo "<pre>";print_r($tree);exit;
    return $tree;
}

/**
 * 将list_to_tree的树还原成列表
 *
 * @param array $tree
 *            原来的树
 * @param string $child
 *            孩子节点的键
 * @param string $order
 *            排序显示的键，一般是主键 升序排列
 * @param array $list
 *            过渡用的中间数组，
 * @return array 返回排过序的列表数组
 */
function tree_to_list($tree, $child = '_child', $order = 'id', &$list = array())
{
	if (is_array($tree)) {
		foreach ($tree as $key => $value) {
			$reffer = $value;
			if (isset($reffer[ $child ])) {
				unset($reffer[ $child ]);
				tree_to_list($value[ $child ], $child, $order, $list);
			}
			$list[] = $reffer;
		}
		$list = list_sort_by($list, $order, $sortby = 'asc');
	}
	return $list;
}

/**
 * 对查询结果集进行排序
 *
 * @access public
 * @param array $list
 *            查询结果
 * @param string $field
 *            排序的字段名
 * @param array $sortby
 *            排序类型
 *            asc正向排序 desc逆向排序 nat自然排序
 * @return array
 */
function list_sort_by($list, $field, $sortby = 'asc')
{
	if (is_array($list)) {
		$refer = $resultSet = array();
		foreach ($list as $i => $data)
			$refer[ $i ] = &$data[ $field ];
		switch ($sortby) {
			case 'asc': // 正向排序
				asort($refer);
				break;
			case 'desc': // 逆向排序
				arsort($refer);
				break;
			case 'nat': // 自然排序
				natcasesort($refer);
				break;
		}
		foreach ($refer as $key => $val)
			$resultSet[] = &$list[ $key ];
		return $resultSet;
	}
	return false;
}

/**
 * 对象转化为数组
 * @param object $obj
 */
function object_to_array($obj)
{
	if (is_object($obj)) {
		$obj = (array) $obj;
	}
	if (is_array($obj)) {
		foreach ($obj as $key => $value) {
			$obj[ $key ] = object_to_array($value);
		}
	}
	return $obj;
}

/**
 * 系统加密方法
 *
 * @param string $data
 *            要加密的字符串
 * @param string $key
 *            加密密钥
 * @param int $expire
 *            过期时间 单位 秒
 * @return string
 */
function encrypt($data, $key = '', $expire = 0)
{
	$key = md5(empty ($key) ? 'niucloud' : $key);
	
	$data = base64_encode($data);
	$x = 0;
	$len = strlen($data);
	$l = strlen($key);
	$char = '';
	
	for ($i = 0; $i < $len; $i++) {
		if ($x == $l)
			$x = 0;
		$char .= substr($key, $x, 1);
		$x++;
	}
	
	$str = sprintf('%010d', $expire ? $expire + time() : 0);
	
	for ($i = 0; $i < $len; $i++) {
		$str .= chr(ord(substr($data, $i, 1)) + (ord(substr($char, $i, 1))) % 256);
	}
	return str_replace(array(
		'+',
		'/',
		'='
	), array(
		'-',
		'_',
		''
	), base64_encode($str));
}

/**
 * 系统解密方法
 *
 * @param string $data
 *            要解密的字符串 （必须是encrypt方法加密的字符串）
 * @param string $key
 *            加密密钥
 * @return string
 */
function decrypt($data, $key = '')
{
	$key = md5(empty ($key) ? 'niucloud' : $key);
	$data = str_replace(array(
		'-',
		'_'
	), array(
		'+',
		'/'
	), $data);
	$mod4 = strlen($data) % 4;
	if ($mod4) {
		$data .= substr('====', $mod4);
	}
	$data = base64_decode($data);
	$expire = substr($data, 0, 10);
	$data = substr($data, 10);
	
	if ($expire > 0 && $expire < time()) {
		return '';
	}
	$x = 0;
	$len = strlen($data);
	$l = strlen($key);
	$char = $str = '';
	
	for ($i = 0; $i < $len; $i++) {
		if ($x == $l)
			$x = 0;
		$char .= substr($key, $x, 1);
		$x++;
	}
	
	for ($i = 0; $i < $len; $i++) {
		if (ord(substr($data, $i, 1)) < ord(substr($char, $i, 1))) {
			$str .= chr((ord(substr($data, $i, 1)) + 256) - ord(substr($char, $i, 1)));
		} else {
			$str .= chr(ord(substr($data, $i, 1)) - ord(substr($char, $i, 1)));
		}
	}
	return base64_decode($str);
}

/**
 * 数据签名认证
 */
function data_auth_sign($data)
{
	// 数据类型检测
	if (!is_array($data)) {
		$data = (array) $data;
	}
	ksort($data); // 排序
	$code = http_build_query($data); // url编码并生成query字符串
	$sign = sha1($code); // 生成签名
	return $sign;
}

/**
 * 重写md5加密方式
 *
 * @param unknown $str
 * @return string
 */
function data_md5($str)
{
	return '' === $str ? '' : md5(md5($str) . 'NiuCloud');
}

/**
 * 时间戳转时间
 */
function time_to_date($time_stamp, $format = 'Y-m-d H:i:s')
{
	if ($time_stamp > 0) {
		$time = date($format, $time_stamp);
	} else {
		$time = "";
	}
	return $time;
}

/**
 * 时间转时间戳
 */
function date_to_time($date)
{
	$time_stamp = strtotime($date);
	return $time_stamp;
}

/**
 * 获取唯一随机字符串
 * 创建时间：2018年8月7日15:54:16
 */
function unique_random($len = 10)
{
	$str = 'qwertyuiopasdfghjklzxcvbnm';
	str_shuffle($str);
	$res = 'nc_' . substr(str_shuffle($str), 0, $len) . date('is');
	return $res;
}

/**
 * 生成随机数
 * @param int $length
 * @return string
 */
function random_keys($length)
{
	$pattern = '1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLOMNOPQRSTUVWXYZ';
	$key = '';
	for ($i = 0; $i < $length; $i++) {
		$key .= $pattern{mt_rand(0, 35)};    //生成php随机数
	}
	return $key;
}


/**
 * 发送HTTP请求方法，目前只支持CURL发送请求
 *
 * @param string $url
 *            请求URL
 * @param array $params
 *            请求参数
 * @param string $method
 *            请求方法GET/POST
 * @return array $data 响应数据
 */
function http($url, $timeout = 30, $header = array())
{
	if (!function_exists('curl_init')) {
		throw new Exception('server not install curl');
	}
	$ch = curl_init();
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
	curl_setopt($ch, CURLOPT_HEADER, true);
	curl_setopt($ch, CURLOPT_URL, $url);
	curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
	if (!empty($header)) {
		curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
	}
	$data = curl_exec($ch);
	list ($header, $data) = explode("\r\n\r\n", $data);
	$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
	if ($http_code == 301 || $http_code == 302) {
		$matches = array();
		preg_match('/Location:(.*?)\n/', $header, $matches);
		$url = trim(array_pop($matches));
		curl_setopt($ch, CURLOPT_URL, $url);
		curl_setopt($ch, CURLOPT_HEADER, false);
		$data = curl_exec($ch);
	}
	
	if ($data == false) {
		curl_close($ch);
	}
	@curl_close($ch);
	return $data;
}

/**
 * 替换数组元素
 * @param array $array 数组
 * @param array $replace 替换元素['key' => 'value', 'key' => 'value']
 */
function replace_array_element($array, $replace)
{
	foreach ($replace as $k => $v) {
		if ($v == "unset" || $v == "") {
			unset($array[ $k ]);
		} else {
			$array[ $k ] = $v;
		}
	}
	
	return $array;
}


/**
 * 过滤特殊符号
 * 创建时间：2018年1月30日15:39:32
 * @param unknown $string
 * @return mixed
 */
function ihtmlspecialchars($string)
{
	if (is_array($string)) {
		foreach ($string as $key => $val) {
			$string[ $key ] = ihtmlspecialchars($val);
		}
	} else {
		$string = preg_replace('/&amp;((#(d{3,5}|x[a-fa-f0-9]{4})|[a-za-z][a-z0-9]{2,5});)/', '&\1',
			str_replace(array( '&', '"', '<', '>' ), array( '&amp;', '&quot;', '&lt;', '&gt;' ), $string));
	}
	return $string;
}

/********************************************* 插件,站点相关函数 ************************************************************************************
 *
 * /**
 * 插件显示内容里生成访问插件的url
 *
 * @param string $url
 *            url
 * @param array $param
 *            参数
 *            格式：addon_url('HelloWorld://sitehome/Game/index', [])
 */
function addon_url($url, $param = array())
{
	if (strpos($url, 'http://') === 0 || strpos($url, 'https://') === 0) {
		return $url;
	}
	$parse_url = parse_url($url);
	$addon = isset($parse_url['scheme']) ? $parse_url['scheme'] : '';
	$controller = isset($parse_url['host']) ? $parse_url['host'] : '';
	$action = trim($parse_url['path'], '/');
	/* 解析URL带的参数 */
	if (isset($parse_url['query'])) {
		parse_str($parse_url['query'], $query);
		$param = array_merge($query, $param);
	}
	$url = $addon . '/' . $controller . '/' . $action;
	if (empty($addon)) {
		$url = $controller . '/' . $action;
		if (empty($controller)) {
			$url = $action;
		}
	}
	
	return url($url, $param);
}

/**
 * Url生成(重写url函数)
 * @param string $url 路由地址
 */
function url(string $url = '', $vars = [])
{
	if (!empty($vars)) {
		if (is_array($vars)) {
			$vars = http_build_query($vars);
		}
		$tag = REWRITE_MODULE ? '?' : '&';
		$var_url = $tag . $vars;
	} else {
		
		$var_url = '';
	}
	$url = $url . '.html';
	return ROOT_URL . '/' . $url . $var_url;
	
}

/**
 * 解析url的插件，模块，控制器，方法
 * @param unknown $url
 */
function url_action($url)
{
	if (empty($url)) {
		return [
			'addon' => '',
			'model' => 'index',
			'controller' => 'index',
			'action' => 'index'
		];
	}
	if (!strstr($url, '://')) {
		$url_array = explode('/', $url);
		return [
			'addon' => '',
			'model' => $url_array[0],
			'controller' => $url_array[1],
			'action' => $url_array[2]
		];
	} else {
		
		$url_addon_array = explode('://', $url);
		$addon = $url_addon_array[0];
		$url_array = explode('/', $url_addon_array[1]);
		return [
			'addon' => $addon,
			'model' => $url_array[0],
			'controller' => $url_array[1],
			'action' => $url_array[2]
		];
	}
	
}

/**
 * 检测插件是否存在
 * @param unknown $name
 * @return number
 */
function addon_is_exit($name)
{
    $addon_model = new Addon();
    $addon_data = $addon_model->getAddonList([], 'name');
    $addons = array_column($addon_data['data'], 'name');
    if(in_array($name, $addons))
    {
        return 1;
    }else{
        return 0;
    }
}

/***************************************************niucloud系统函数***************************************************/
/**
 * 处理事件
 *
 * @param string $event
 *            钩子名称
 * @param mixed $args
 *            传入参数
 * @param bool $once
 *            只获取一个有效返回值
 * @return void
 */
function event($event, $args = [], $once = false)
{
	$res = Event::trigger($event, $args);
	if (is_array($res)) {
		$res = array_filter($res);
		sort($res);
	}
	//只返回一个结果集
	if ($once) {
		return isset($res[0]) ? $res[0] : '';
	}
	return $res;
	
}

/**
 * 错误返回值函数
 * @param int $code
 * @param string $message
 * @param string $data
 * @return array
 */
function error($code = -1, $message = '', $data = '')
{
	return [
		'code' => $code,
		'message' => $message,
		'data' => $data
	];
}

/**
 * 返回值函数
 * @param int $code
 * @param string $message
 * @param string $data
 * @return array
 */
function success($code = 0, $message = '', $data = '')
{
	return [
		'code' => $code,
		'message' => $message,
		'data' => $data
	];
}

/**
 * 实例化Model
 *
 * @param string $name
 *            Model名称
 */
function model($table = '')
{
	return new \app\model\Model($table);
}

/**
 * 获取带有表前缀的表名
 * @param string $table
 */
function table($table = '')
{
	return config('database.connections.prefix') . $table;
}

/**
 * 获取图片的真实路径
 *
 * @param string $path 图片初始路径
 * @param string $type 类型 big、mid、small
 * @return string 图片的真实路径
 */
function img($path, $type = '')
{
	$start = strripos($path, '.');
	$type = $type ? '_' . $type : '';
	$first = explode("/", $path);
	$path = substr_replace($path, $type, $start, 0);
	if (stristr($path, "http://") === false && stristr($path, "https://") === false) {
		if (is_numeric($first[0])) {
			$true_path = __ROOT__ . '/upload/' . $path;
		} else {
			$true_path = __ROOT__ . '/' . $path;
		}
	} else {
		$true_path = $path;
	}
	return $true_path;
}

/**
 * 获取标准二维码格式
 *
 * @param string $url
 * @param string $path
 * @param string $ext
 */
function qrcode($url, $path, $qrcode_name)
{
	if (!is_dir($path)) {
		$mode = intval('0777', 8);
		mkdir($path, $mode, true);
		chmod($path, $mode);
	}
	$path = $path . '/' . $qrcode_name . '.png';
	if (file_exists($path)) {
		unlink($path);
	}
	QRcode::png($url, $path, '', 4, 1);
	return $path;
}

/**
 * 前端页面api请求(通过api接口实现)
 * @param string $method
 * @param array $params
 * @return mixed
 */
function api($method, $params = [])
{
	//本地访问
	$data = get_api_data($method, $params);
	return $data;
}

/**
 * 获取Api类
 *
 * @param string $method
 */
function get_api_data($method, $params)
{
	$method_array = explode('.', $method);
	if ($method_array[0] == 'System') {
		$class_name = 'app\\api\\controller\\' . $method_array[1];
		if (!class_exists($class_name)) {
			return error();
		}
		$api_model = new $class_name($params);
	} else {
		$class_name = "addon\\{$method_array[0]}\\api\\controller\\" . $method_array[1];
		
		if (!class_exists($class_name)) {
			return error();
		}
		$api_model = new $class_name($params);
	}
	$function = $method_array[2];
	$data = $api_model->$function($params);
	return $data;
}

/**
 * 根据年份计算生肖
 * @param unknown $year
 */
function get_zodiac($year)
{
	$animals = array(
		'鼠', '牛', '虎', '兔', '龙', '蛇', '马', '羊', '猴', '鸡', '狗', '猪'
	);
	$key = ($year - 1900) % 12;
	return $animals[ $key ];
}

/**
 * 计算.星座
 * @param int $month 月份
 * @param int $day 日期
 * @return str
 */
function get_constellation($month, $day)
{
	$constellations = array(
		'水瓶座', '双鱼座', '白羊座', '金牛座', '双子座', '巨蟹座',
		'狮子座', '处女座', '天秤座', '天蝎座', '射手座', '摩羯座'
	);
	if ($day <= 22) {
		if (1 != $month) {
			$constellation = $constellations[ $month - 2 ];
		} else {
			$constellation = $constellations[11];
		}
	} else {
		$constellation = $constellations[ $month - 1 ];
	}
	return $constellation;
}

/**
 * 数组键名转化为数字
 * @param $data
 */
function arr_key_to_int($data, $clild_name)
{
	$temp_data = array_values($data);
	foreach ($temp_data as $k => $v) {
		if (!empty($v[ $clild_name ])) {
			$temp_data[ $k ][ $clild_name ] = arr_key_to_int($v[ $clild_name ], $clild_name);
		}
	}
	return $temp_data;
}

/**
 * 以天为单位 计算间隔内的日期数组
 * @param $start_time
 * @param $end_time
 * @return array
 */
function period_group($start_time, $end_time, $format = 'Ymd')
{
	$type_time = 3600 * 24;
	$data = [];
	for ($i = $start_time; $i <= $end_time; $i += $type_time) {
		$data[] = date($format, $i);
	}
	return $data;
}

/**
 * 数组删除另一个数组
 * @param $arr
 * @param $del_arr
 * @return mixed
 */
function arr_del_arr($arr, $del_arr)
{
	foreach ($arr as $k => $v) {
		if (in_array($v, $del_arr)) {
			unset($arr[ $k ]);
		}
	}
	sort($arr);
	return $arr;
}


/**
 * 检测登录(应用于h5网页检测登录)
 * @param unknown $url
 */
function check_auth($url = '')
{
	$access_token = Session::get("access_token_" . request()->siteid());
	if (empty($access_token)) {
		if (!empty($url)) {
			Session::set("redirect_login_url", $url);
		}
		//尚未登录(直接跳转)
		return error(url('wap/login/login'));
	}
	$member_info = cache("member_info_" . request()->siteid() . $access_token);
	if (empty($member_info)) {
		$member_info = api("System.Member.memberInfo", [ 'access_token' => $access_token ]);
		if ($member_info['code'] == 0) {
			$member_info = $member_info['data'];
			cache("member_info_" . request()->siteid() . $access_token, $member_info);
		}
	}
	$member_info['access_token'] = $access_token;
	return success($member_info);
}

/**
 * 分割sql语句
 * @param  string $content sql内容
 * @param  bool $string 如果为真，则只返回一条sql语句，默认以数组形式返回
 * @param  array $replace 替换前缀，如：['my_' => 'me_']，表示将表前缀my_替换成me_
 * @return array|string 除去注释之后的sql语句数组或一条语句
 */
function parse_sql($content = '', $string = false, $replace = [])
{
	// 纯sql内容
	$pure_sql = [];
	// 被替换的前缀
	$from = '';
	// 要替换的前缀
	$to = '';
	// 替换表前缀
	if (!empty($replace)) {
		$to = current($replace);
		$from = current(array_flip($replace));
	}
	if ($content != '') {
		// 多行注释标记
		$comment = false;
		// 按行分割，兼容多个平台
		$content = str_replace([ "\r\n", "\r" ], "\n", $content);
		$content = explode("\n", trim($content));
		// 循环处理每一行
		foreach ($content as $key => $line) {
			// 跳过空行
			if ($line == '') {
				continue;
			}
			// 跳过以#或者--开头的单行注释
			if (preg_match("/^(#|--)/", $line)) {
				continue;
			}
			// 跳过以/**/包裹起来的单行注释
			if (preg_match("/^\/\*(.*?)\*\//", $line)) {
				continue;
			}
			// 多行注释开始
			if (substr($line, 0, 2) == '/*') {
				$comment = true;
				continue;
			}
			// 多行注释结束
			if (substr($line, -2) == '*/') {
				$comment = false;
				continue;
			}
			// 多行注释没有结束，继续跳过
			if ($comment) {
				continue;
			}
			// 替换表前缀
			if ($from != '') {
				$line = str_replace('`' . $from, '`' . $to, $line);
			}
			// sql语句
			$pure_sql[] = $line;
		}
		// 只返回一条语句
		if ($string) {
			return implode($pure_sql, "");
		}
		// 以数组形式返回sql语句
		$pure_sql = implode($pure_sql, "\n");
		$pure_sql = explode(";\n", $pure_sql);
	}
	return $pure_sql;
}

/**
 * 执行sql
 * @param unknown $sql_name
 */
function execute_sql($sql_name)
{
	$sql_string = file_get_contents($sql_name);
	$sql_string = str_replace("{{prefix}}", config("database.connections.mysql.prefix"), $sql_string);
	if ($sql_string) {
		$sql = explode(";\n", str_replace("\r", "\n", $sql_string));
		foreach ($sql as $value) {
			$value = trim($value);
			if (!empty($value)) {
				\think\facade\Db::execute($value);
			}
		}
	}
}

/**
 * 检测目录读写权限
 */
function check_dir_iswritable($dir)
{
	$testDir = $dir;
	sp_dir_create($testDir);
	if (sp_testwrite($testDir)) {
		return true;
	} else {
		return false;
	}
}

/**
 * 检查测试文件是否可写入
 */
function sp_testwrite($d)
{
	$tfile = "_test.txt";
	$fp = @fopen($d . "/" . $tfile, "w");
	if (!$fp) {
		return false;
	}
	fclose($fp);
	$rs = @unlink($d . "/" . $tfile);
	if ($rs) {
		return true;
	}
	return false;
}

/**
 * 检查文件是否创建
 */
function sp_dir_create($path, $mode = 0777)
{
	if (is_dir($path))
		return true;
	$ftp_enable = 0;
	$path = sp_dir_path($path);
	$temp = explode('/', $path);
	$cur_dir = '';
	$max = count($temp) - 1;
	for ($i = 0; $i < $max; $i++) {
		$cur_dir .= $temp[ $i ] . '/';
		if (@is_dir($cur_dir))
			continue;
		@mkdir($cur_dir, 0777, true);
		@chmod($cur_dir, 0777);
	}
	return is_dir($path);
}

/**
 * 判断目录是否为空
 * @param $dir
 * @return bool
 */
function dir_is_empty($dir)
{
	$handle = opendir($dir);
	while (false !== ($entry = readdir($handle))) {
		if ($entry != "." && $entry != "..") {
			return FALSE;
		}
	}
	return TRUE;
}

/**
 * 创建文件夹
 *
 * @param string $path 文件夹路径
 * @param int $mode 访问权限
 * @param bool $recursive 是否递归创建
 * @return bool
 */
function dir_mkdir($path = '', $mode = 0777, $recursive = true)
{
	clearstatcache();
	if (!is_dir($path)) {
		mkdir($path, $mode, $recursive);
		return chmod($path, $mode);
	}
	return true;
}

/**
 * 文件夹文件拷贝
 *
 * @param string $src 来源文件夹
 * @param string $dst 目的地文件夹
 * @return bool
 */
function dir_copy($src = '', $dst = '')
{
	if (empty($src) || empty($dst)) {
		return false;
	}
	$dir = opendir($src);
	dir_mkdir($dst);
	while (false !== ($file = readdir($dir))) {
		if (($file != '.') && ($file != '..')) {
			if (is_dir($src . '/' . $file)) {
				dir_copy($src . '/' . $file, $dst . '/' . $file);
			} else {
				copy($src . '/' . $file, $dst . '/' . $file);
			}
		}
	}
	closedir($dir);
	
	return true;
}

/**查询存在目录
 * @param $dir
 */
function sp_exist_dir($dir)
{
	$is_exist = false;
	$is_write = false;
	while (!$is_exist) {
		$dir = dirname($dir);
		if (is_dir($dir) || $dir == ".") {
			$is_exist = true;
			if (is_writeable($dir)) {
				$is_write = true;
			}
			
		}
	}
	return $is_write;
}

/**
 * 拼接字符串
 * @param $string
 * @param $delimiter 分割字符
 * @param $value
 */
function string_split($string, $delimiter, $value)
{
	return empty($string) ? $value : $string . $delimiter . $value;
}

/**
 * $str为要进行截取的字符串，$length为截取长度（汉字算一个字，字母算半个字
 * @param $str
 * @param $length
 * @return string
 */
function str_sub($str, $length = 10)
{
	return mb_substr($str, 0, $length, 'UTF-8') . "...";
}

/**
 * 删除缓存文件使用
 * @param $dir
 */
function rmdirs($dir)
{
	$dir = 'runtime/' . $dir;
	$dh = opendir($dir);
	while ($file = readdir($dh)) {
		if ($file != "." && $file != "..") {
			$fullpath = $dir . "/" . $file;
			if (is_dir($fullpath)) {
				rmdirs($fullpath);
			} else {
				unlink($fullpath);
			}
		}
	}
	closedir($dh);
}


/**
 * 以天为单位 计算间隔内的日期数组
 * @param $srart_time
 * @param $end_time
 * @return array
 */
function periodGroup($srart_time, $end_time, $format = 'Ymd')
{
	$type_time = 3600 * 24;
	$data = [];
	for ($i = $srart_time; $i <= $end_time; $i += $type_time) {
		$data[] = date($format, $i);
	}
	return $data;
}


//解决个别中文乱码
function mbStrreplace($content, $to_encoding = "UTF-8", $from_encoding = "GBK")
{
	$content = mb_convert_encoding($content, $to_encoding, $from_encoding);
	$str = mb_convert_encoding("　", $to_encoding, $from_encoding);
	$content = mb_eregi_replace($str, " ", $content);
	$content = mb_convert_encoding($content, $from_encoding, $to_encoding);
	$content = trim($content);
	return $content;
}

/**
 * 将非UTF-8字符集的编码转为UTF-8
 *
 * @param mixed $mixed 源数据
 *
 * @return mixed utf-8格式数据
 */
function charset2utf8($mixed)
{
	if (is_array($mixed)) {
		foreach ($mixed as $k => $v) {
			if (is_array($v)) {
				$mixed[ $k ] = charsetToUTF8($v);
			} else {
				$encode = mb_detect_encoding($v, array( 'ASCII', 'UTF-8', 'GB2312', 'GBK', 'BIG5' ));
				if ($encode == 'EUC-CN') {
					$mixed[ $k ] = iconv('GBK', 'UTF-8', $v);
				}
			}
		}
	} else {
		$encode = mb_detect_encoding($mixed, array( 'ASCII', 'UTF-8', 'GB2312', 'GBK', 'BIG5' ));
		if ($encode == 'EUC-CN') {
			$mixed = iconv('GBK', 'UTF-8', $mixed);
		}
	}
	return $mixed;
}

/**
 * 过滤bom
 * @param $filename
 */
function check_bom ($filename) {
    $contents = file_get_contents($filename);
    $charset[1] = substr($contents, 0, 1);
    $charset[2] = substr($contents, 1, 1);
    $charset[3] = substr($contents, 2, 1);
    if (ord($charset[1]) == 239 && ord($charset[2]) == 187 && ord($charset[3]) == 191) {
        $rest = substr($contents, 3);
        return $rest;
    }else{
        return $contents;
    }
}


/**
 * 判断 文件/目录 是否可写（取代系统自带的 is_writeable 函数）
 *
 * @param string $file 文件/目录
 * @return boolean
 */
function is_write($file)
{
    if (is_dir($file)) {
        $dir = $file;
        if ($fp = @fopen("$dir/test.txt", 'w')) {
            @fclose($fp);
            @unlink("$dir/test.txt");
            $writeable = true;
        } else {
            $writeable = false;
        }
    } else {
        if ($fp = @fopen($file, 'a+')) {
            @fclose($fp);
            $writeable = true;
        } else {
            $writeable = false;
        }
    }
    return $writeable;
}

/**
 * 是否是url链接
 * @param unknown $string
 * @return boolean
 */
function is_url($string)
{
    if (strstr($string, 'http://') === false && strstr($string, 'https://') === false) {
        return false;
    } else {
        return true;
    }
}

/**
 * 根据两点间的经纬度计算距离
 * @param float $lng1
 * @param float $lat1
 * @param float $lng2
 * @param float $lat2
 * @return number
 */
function getDistance(float $lng1, float $lat1, float $lng2, float $lat2)
{
	if (($lng1 == $lng2) && ($lat1 == $lat2)) {
		return 0;
	}
	//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;
	return $s;
}


/**
 * 获取token
 */
function getToken(){
//        $token = cache('hx_token');
//        if (!$token){
    $data = array(
        "grant_type" => "client_credentials",
        "client_id" => 'YXA6pmsN9WTbQQuf2no5YmnNhA',
        "client_secret" => 'YXA6Gp3RiQOG_AW4stlt9gMqTAxyVKw'
    );
    $url = "https://a1.easemob.com/1118220221135762/mendian/token";
    $rs = json_decode(curl($url, $data), true);
    cache('hx_token',$rs['access_token'],$rs['expires_in']-1500);
    $token = $rs['access_token'];
    // }
    return $token;
}

/**
 * 环信注册
 */
function huanxin_zhuce($username,$nickname){
    $param = array (
        "username" => $username,
        "password" => '12345678',
        "nickname" => $nickname
    );

    $url = "https://a1.easemob.com/1118220221135762/mendian/users";
    $res = huanxin_curl_request($url, json_encode($param));
    $tokenResult =  json_decode($res, true);
    //dump($tokenResult);
}

/**
 * 添加好友
 */
function add_friend($owner_username,$friend_username){
    $param = array ();
    $header = array(
        'Authorization: Bearer '.getToken()
    );
    $url = "https://a1.easemob.com/1118220221135762/mendian/users/".$owner_username."/contacts/users/".$friend_username;
    $res = huanxin_curl_request($url,$param,$header,'POST');
    $Result =  json_decode($res, true);
    //print_r($Result);
}

/**
 * 好友列表
 */
function friend_list($owner_username){
    $param = array ();
    $header = array(
        'Authorization: Bearer '.getToken()
    );
    $url = "https://a1.easemob.com/1118220221135762/mendian/users/".$owner_username."/contacts/users";
    $res = huanxin_curl_request($url,$param,$header,'GET');
    $Result =  json_decode($res, true);
    return $Result['data'];
}


function huanxin_curl_request($url, $body, $header = array(), $method = "POST") {
    array_push ( $header, 'Accept:application/json' );
    array_push ( $header, 'Content-Type:application/json' );
    $ch = curl_init ();
    curl_setopt ( $ch, CURLOPT_CONNECTTIMEOUT, 60 );
    curl_setopt ( $ch, CURLOPT_URL, $url );
    curl_setopt ( $ch, CURLOPT_RETURNTRANSFER, 1 );
    // curl_setopt($ch, $method, 1);

    switch (strtoupper($method)) {
        case "GET" :
            curl_setopt ( $ch, CURLOPT_HTTPGET, true );
            break;
        case "POST" :
            curl_setopt ( $ch, CURLOPT_POST, true );
            break;
        case "PUT" :
            curl_setopt ( $ch, CURLOPT_CUSTOMREQUEST, "PUT" );
            break;
        case "DELETE" :
            curl_setopt ( $ch, CURLOPT_CUSTOMREQUEST, "DELETE" );
            break;
    }

    curl_setopt ( $ch, CURLOPT_USERAGENT, 'SSTS Browser/1.0' );
    curl_setopt ( $ch, CURLOPT_ENCODING, 'gzip' );
    curl_setopt ( $ch, CURLOPT_SSL_VERIFYPEER, FALSE );
    curl_setopt ( $ch, CURLOPT_SSL_VERIFYHOST, 2 );
    if (isset ( $body {3} ) > 0) {
        curl_setopt ( $ch, CURLOPT_POSTFIELDS, $body );
    }
    if (count ( $header ) > 0) {
        curl_setopt ( $ch, CURLOPT_HTTPHEADER, $header );
    }
    $ret = curl_exec ( $ch );
    $err = curl_error ( $ch );
    curl_close ( $ch );
    if ($err) {
        return $err;
    }
    return $ret;
}

function curl($url, $data, $header = false, $method = "POST")
{
    $ch = curl_init($url);
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    if ($header) {
        curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
    }
    curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $method);
    if ($data) {
        curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
    }
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
    $ret = curl_exec($ch);
    return $ret;
}