<?php
header("Content-type:text/html;charset:utf-8");
/*获取当前访问用户IP*/
function GetIP()
{
    if (getenv("HTTP_CLIENT_IP") && strcasecmp(getenv("HTTP_CLIENT_IP"), "unknown")) {
        $ip = getenv("HTTP_CLIENT_IP");
    } else if (getenv("HTTP_X_FORWARDED_FOR") && strcasecmp(getenv("HTTP_X_FORWARDED_FOR"), "unknown")) {
        $ip = getenv("HTTP_X_FORWARDED_FOR");
    } else if (getenv("REMOTE_ADDR") && strcasecmp(getenv("REMOTE_ADDR"), "unknown")) {
        $ip = getenv("REMOTE_ADDR");
    } else if (isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] && strcasecmp($_SERVER['REMOTE_ADDR'], "unknown")) {
        $ip = $_SERVER['REMOTE_ADDR'];
    } else {
        $ip = "unknown";
    }
    return ($ip);
}

/*格式化header*/
function parseHeaders($headers)
{
    $head = array();
    foreach ($headers as $k => $v) {
        $t = explode(':', $v, 2);
        if (isset($t[1])) {
            $head[trim($t[0])] = trim($t[1]);
        } else {
            $head[] = $v;
            if (preg_match('/HTTP\/[0-9\.]+\s+([0-9]+)/', $v, $out)) {
                $head['reponse_code'] = intval($out[1]);
            }
        }
    }
    return $head;
}

/*数组格式化输出header*/
function dumpout($vars, $label = '', $return = false)
{
    if (!isset($vars)) return false;
    $vars = parseHeaders($vars);
    if (ini_get('html_errors')) {
        $content = "<pre>\n";
        if ($label != '') {
            $content .= "<strong>{$label} :</strong>\n";
        }
        $content .= htmlspecialchars(print_r($vars, true));
        $content .= "\n</pre>\n";
    } else {
        $content = $label . " :\n" . print_r($vars, true);
    }
    if ($return) {
        return $content;
    }
    echo $content;
    return null;
}

/*数组格式化输出arr*/
function dumpArr($vars, $label = '', $return = false)
{
    if (ini_get('html_errors')) {
        $content = "<pre>\n";
        if ($label != '') {
            $content .= "<strong>{$label} :</strong>\n";
        }
        $content .= htmlspecialchars(print_r($vars, true));
        $content .= "\n</pre>\n";
    } else {
        $content = $label . " :\n" . print_r($vars, true);
    }
    if ($return) {
        return $content;
    }
    echo $content;
    return null;
}

/**
 * @return string:返回当前主机
 * 返回当前主机http://   /形式
 */
function getHost()
{
    $host = $_SERVER['HTTP_HOST'] ? $_SERVER['HTTP_HOST'] : 'localhost';
    return 'http://' . $host . '/';
}

?>