Get the web path of php

class HttpTool
{
    /**
 * //Get the domain name or host address
 * #Test URL: http://localhost:8081/test/testurl.php?id=5
 * Return to localhost:8081
*/
    public function getHost()
    {
        return $_SERVER['HTTP_HOST'];
    }

    /**
 * The url of the current page (including parameters)
*/
    public function getWebUrl()
    {
        $pageURL = 'http';
        if (isset($_SERVER["HTTPS"]) && $_SERVER["HTTPS"] == "on")
        {
            $pageURL .= "s";
        }
        $pageURL .= "://";
        $pageURL .= $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
        return $pageURL;
    }

    /**
 *
 * URL of the current page (excluding parameters)
*/
    public function getWebPath()
    {
        $pageURL = 'http';
        if (isset($_SERVER["HTTPS"]) && $_SERVER["HTTPS"] == "on")
        {
            $pageURL .= "s";
        }
        $pageURL .= "://";
        $pageURL .= $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF'];
        return $pageURL;
    }

    /**
 * The parent path of the current page
*/
    public function getWebParentPath()
    {
        $pageURL = 'http';
        if (isset($_SERVER["HTTPS"]) && $_SERVER["HTTPS"] == "on")
        {
            $pageURL .= "s";
        }
        $pageURL .= "://";
        $pageURL .= $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF'];
        $pageURL = substr($pageURL, 0, strrpos($pageURL, "/"));
        return $pageURL;
    }

    /**
 * Server name
*/
    public function getServerName()
    {
        return $_SERVER['SERVER_NAME'];
    }

    /**
 * port
*/
    public function getServerPort()
    {
        return $_SERVER["SERVER_PORT"];
    }

    /**
 * Link parameters, parameters after question mark?
*/
    public function getQueryString()
    {
        return $_SERVER['QUERY_STRING'];
    }

    /**
 *Request address, return value does not host content
*/
    public function getRequestUri()
    {
        return $_SERVER['REQUEST_URI'];
    }
}

$http = new HttpTool();
echo "host===============".$http->getHost() . "";
echo "weburl=============".$http->getWebUrl() . "";
echo "webPath============".$http->getWebPath() . "";
echo "getWebParentPath===".$http->getWebParentPath() . "";
echo "getServerName======".$http->getServerName() . "";
echo "getServerPort======".$http->getServerPort() . "";
echo "getQueryString=====".$http->getQueryString() . "";
echo "getRequestUri======".$http->getRequestUri() . "";

?>

测试地址：http://localhost:8081/test/httptool.php?name=penngo

输出结果：

host===============localhost:8081
weburl=============http://localhost:8081/test/httptool.php?name=penngo
webPath============http://localhost:8081/test/httptool.php
getWebParentPath===http://localhost:8081/test
getServerName======localhost
getServerPort======8081
getQueryString=====name=penngo
getRequestUri======/test/httptool.php?name=penngo

php, web