<?php
header('Content-Type:image/svg+xml');
$urlForSvg = '';

function randColor()
{
    $str = '3456789ABC';
    $estr = '#';
    $len = strlen($str);
    for ($i = 1; $i <= 6; $i++) {
        $num = rand(0, $len - 1);
        $estr = $estr . $str[$num];
    }
    return $estr;
}

/**
 * CURL GET
 *
 * @param string 请求地址
 * @param array 请求头
 * @param string COOKIES
 * @param boolean 是否返回header
 * @param boolean 是否后台请求
 * @param integer 超时时间
 * @param array 使用代理
 * @return mixed 
 */
function httpGetFull($url, $header = [], $cookies = "", $returnHeader = false, $isBackGround = false, $timeout = 0, $proxy = null)
{
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_REFERER, $url);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
    curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
    curl_setopt($ch, CURLOPT_COOKIE, $cookies);
    if ($timeout) {
        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
        curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
    }
    if (!empty($proxy)) {
        curl_setopt($ch, CURLOPT_PROXY, $proxy['ip']);
        curl_setopt($ch, CURLOPT_PROXYPORT, $proxy['port']);
        curl_setopt($ch, CURLOPT_PROXYUSERPWD, "taras:taras-ss5");
    }
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, $isBackGround ? 0 : 1);
    curl_setopt($ch, CURLOPT_HEADER, $returnHeader ? 1 : 0);
    $output = curl_exec($ch);
    if ($timeout) {
        if ($output === FALSE) {
            if (in_array(curl_errno($ch), [28])) {
                $output = 'TIMEOUT';
            } else {
                $output = 'ERROR';
            }
        }
    }
    curl_close($ch);
    return $output;
}
/**
 * CURL请求
 *
 * @param  string URL地址
 * @param  string 请求方法,支持GET/POST/PUT/DELETE/PATCH/TRACE/OPTION/HEAD 默认GET
 * @param  mixed 请求数据包体
 * @param  array 请求头 数组
 * @param  string 请求COOKIES字符串
 * @return array
 */
function ___curlHelper($url, $method = 'GET', $data = null, $header = [], $cookies = ""): array
{
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
    curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
    curl_setopt($ch, CURLOPT_COOKIE, $cookies);
    curl_setopt($ch, CURLOPT_TIMEOUT, 10);
    switch ($method) {
        case "GET":
            curl_setopt($ch, CURLOPT_HTTPGET, true);
            break;
        case "POST":
            curl_setopt($ch, CURLOPT_POST, true);
            curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
            break;
        case "PUT":
            curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "PUT");
            curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
            break;
        case "DELETE":
            curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "DELETE");
            curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
            break;
        case "PATCH":
            curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "PATCH");
            curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
            break;
        case "TRACE":
            curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "TRACE");
            curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
            break;
        case "OPTIONS":
            curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "OPTIONS");
            curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
            break;
        case "HEAD":
            curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "HEAD");
            curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
            break;
        default:
    }
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_HEADER, 1);
    $response = curl_exec($ch);
    $output = [];
    $headerSize = curl_getinfo($ch, CURLINFO_HEADER_SIZE);
    // 根据头大小去获取头信息内容
    $output['header'] = substr($response, 0, $headerSize);
    $output['body'] = substr($response, $headerSize, strlen($response) - $headerSize);
    $output['detail'] = curl_getinfo($ch);
    curl_close($ch);
    return $output;
}

function get_client_ip()
{
    foreach (
        array(
            'HTTP_CLIENT_IP',
            'HTTP_X_FORWARDED_FOR',
            'HTTP_X_FORWARDED',
            'HTTP_X_CLUSTER_CLIENT_IP',
            'HTTP_FORWARDED_FOR',
            'HTTP_FORWARDED',
            'REMOTE_ADDR'
        ) as $key) {
        if (array_key_exists($key, $_SERVER)) {
            foreach (explode(',', $_SERVER[$key]) as $ip) {
                $ip = trim($ip);
                if (
                    (bool) filter_var(
                        $ip,
                        FILTER_VALIDATE_IP,
                        FILTER_FLAG_IPV4
                        // FILTER_FLAG_NO_PRIV_RANGE |
                        // FILTER_FLAG_NO_RES_RANGE

                    )
                ) {
                    return $ip;
                }
            }
        }
    }
    return null;
}

/**
 * 获取操作系统
 *
 * @return string
 */
function getOs()
{
    if (empty($_SERVER['HTTP_USER_AGENT'])) {
        return 'Other';
    }
    $agent = strtolower($_SERVER['HTTP_USER_AGENT']);
    if (strpos($agent, 'windows nt')) {
        $platform = 'Windows';
    } elseif (strpos($agent, 'macintosh')) {
        $platform = 'MacOS';
    } elseif (strpos($agent, 'ipod')) {
        $platform = 'iPod';
    } elseif (strpos($agent, 'ipad')) {
        $platform = 'iPad';
    } elseif (strpos($agent, 'iphone')) {
        $platform = 'iPhone';
    } elseif (strpos($agent, 'android')) {
        $platform = 'Android';
    } elseif (strpos($agent, 'unix')) {
        $platform = 'Unix';
    } elseif (strpos($agent, 'linux')) {
        $platform = 'Linux';
    } else {
        $platform = 'Other';
    }
    return $platform;
}
/**
 * 获取浏览器
 *
 * @return void
 */
function getBrowser()
{
    if (empty($_SERVER['HTTP_USER_AGENT'])) {
        return 'Unknown';
    }
    $agent = $_SERVER["HTTP_USER_AGENT"];
    if (strpos($agent, 'MSIE') !== false || strpos($agent, 'rv:11.0')) //ie11判断
    {
        return "IE";
    } else if (strpos($agent, 'Firefox') !== false) {
        return "Firefox";
    } else if (strpos($agent, 'Chrome') !== false) {
        return "Chrome";
    } else if (strpos($agent, 'Opera') !== false) {
        return 'Opera';
    } else if ((strpos($agent, 'Chrome') == false) && strpos($agent, 'Safari') !== false) {
        return 'Safari';
    } else {
        return 'Unknown';
    }
}
?>