<?php
namespace app\service;

class Tool
{
    //删除文件
    public static function delFile($path)
    {
        if(!empty(trim($path))){
            $realPath = app()->getRootPath() . ltrim($path, '/');
            if (file_exists($realPath)) {
                $info = pathinfo($realPath);
                $source = $info['dirname'] . "/" . $info['filename'] . '*.' . $info['extension'];
                foreach(glob($source) as $filename){
                    if(is_file($filename)){
                        unlink($filename);
                    }
                }
                clearstatcache();// 清除缓存
            }
        }
    }

    /**
     * 删除目录下的所有文件和子目录
     * 调用完毕后请用clearstatcache()清理缓存
     */
    public static function removeByPath($path)
    {
        if(is_dir($path)) {
            if($handle = @opendir($path)) {
                while (($file = readdir($handle)) !== false){
                    if($file != '.' && $file != '..') {
                        $child = $path.'/'.$file;
                        is_dir($child) ? self::removeByPath($child) : @unlink($child);
                    }
                }
            }
            closedir($handle);
        } elseif (is_file($path)) {
            @unlink($path);
        } else {
            return false;
        }
        return true;
    }

    //去除字符串空格
    public static function trimSpace($str)
    {
        return str_replace(' ', '', trim($str));
    }

    /**
     * CURL请求
     * @param $url 请求url地址
     * @param $method 请求方法 get post
     * @param null $postfields post数据数组
     * @param array $headers 请求header信息
     * @param bool|false $debug 调试开启 默认false
     * @return mixed
     */
    static function httpRequest($url, $method = "post", $postfields = null, $headers = array(), $debug = false)
    {
        $method = strtoupper($method);
        $ci = curl_init();
        /* Curl settings */
        curl_setopt($ci, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
        curl_setopt($ci, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows NT 6.2; WOW64; rv:34.0) Gecko/20100101 Firefox/34.0");
        curl_setopt($ci, CURLOPT_CONNECTTIMEOUT, 60); /* 在发起连接前等待的时间，如果设置为0，则无限等待 */
        curl_setopt($ci, CURLOPT_TIMEOUT, 7); /* 设置cURL允许执行的最长秒数 */
        curl_setopt($ci, CURLOPT_RETURNTRANSFER, true);
        switch ($method) {
            case "POST":
                curl_setopt($ci, CURLOPT_POST, true);
                if (!empty($postfields)) {
                    $tmpdatastr = is_array($postfields) ? http_build_query($postfields) : $postfields;
                    curl_setopt($ci, CURLOPT_POSTFIELDS, $tmpdatastr);
                }
                break;
            default:
                curl_setopt($ci, CURLOPT_CUSTOMREQUEST, $method); /* //设置请求方式 */
                break;
        }
        $ssl = preg_match('/^https:\/\//i', $url) ? TRUE : FALSE;
        curl_setopt($ci, CURLOPT_URL, $url);
        if ($ssl) {
            curl_setopt($ci, CURLOPT_SSL_VERIFYPEER, FALSE); // https请求 不验证证书和hosts
            curl_setopt($ci, CURLOPT_SSL_VERIFYHOST, FALSE); // 不从证书中检查SSL加密算法是否存在
        }
        curl_setopt($ci, CURLOPT_FOLLOWLOCATION, 1);
        curl_setopt($ci, CURLOPT_MAXREDIRS, 2);/*指定最多的HTTP重定向的数量，这个选项是和CURLOPT_FOLLOWLOCATION一起使用的*/
        curl_setopt($ci, CURLOPT_HTTPHEADER, $headers);
        curl_setopt($ci, CURLINFO_HEADER_OUT, true);
        $response = curl_exec($ci);
        $requestinfo = curl_getinfo($ci);
        if ($debug) {
            echo "=====post data======\r\n";
            var_dump($postfields);
            echo "=====info===== \r\n";
            print_r($requestinfo);
            echo "=====response=====\r\n";
            print_r($response);
        }
        curl_close($ci);
        return $response;
    }

}
