Environment Class

gistfile1.php

<?php

/**
 * Copyright @author Muhamad Rifki <rifki@rifkilabs.net>
 * Deskripsi : http://php.net/manual/en/reserved.variables.server.php
 */

abstract class EnvironmentAbstract
{
    /**
     * The address of the page (if any) which referred the user agent to the current page. 
     * This is set by the user agent. Not all user agents will set this, 
     * and some provide the ability to modify HTTP_REFERER as a feature. In short, 
     * it cannot really be trusted
     * @var type 
     */
    protected $http_referer = "http_referer";
    
    /**
     * Contents of the Host: header from the current request, if there is one. 
     * @var type 
     */
    protected $http_host = "http_host";
    
    /**
     * Contents of the User-Agent: header from the current request, 
     * if there is one. This is a string denoting the user agent 
     * being which is accessing the page. 
     * A typical example is: Mozilla/4.5 [en] (X11; U; Linux 2.2.9 i586). 
     * Among other things, you can use this value with get_browser() 
     * to tailor your page's output to the capabilities of the user agent. 
     * @var type 
     */
    protected $http_user_agent = "http_user_agent";
    
    /**
     * Contents of the Accept: header from the current request, if there is one. 
     * @var type 
     */
    protected $http_accept = "http_accept";
    
    /**
     * Contents of the Accept-Language: header from the current request, 
     * if there is one. Example: 'en'.
     * @var type 
     */
    protected $http_accept_languange = "http_accept_languange";
    
    /**
     * Contents of the Accept-Encoding: header from the current request, 
     * if there is one. Example: 'gzip'. 
     * @var type 
     */
    protected $http_accept_encoding = "http_accept_encoding";
    
    /**
     * Contents of the Accept-Charset: header from the current request, 
     * if there is one. Example: 'iso-8859-1,*,utf-8'. 
     * @var type 
     */
    protected $http_accept_charset = "http_accept_charset";

    /**
     * Contents of the Connection: header from the current request, 
     * if there is one. Example: 'Keep-Alive'.
     * @var type 
     */
    protected $http_connection = "http_connection";

    /**
     * /usr/local/bin:/usr/bin:/bin
     * @var type 
     */
    protected $path = "path";
    
    /**
     * String containing the server version and virtual host name 
     * which are added to server-generated pages, if enabled. 
     * @var type 
     */
    protected $server_signature = "server_signature";
    
    /**
     * Server identification string, given in the headers when responding to requests. 
     * @var type 
     */
    protected $server_software = "server_software";
    
    /**
     * The name of the server host under which the current script is executing. 
     * If the script is running on a virtual host, 
     * this will be the value defined for that virtual host. 
     * @var type 
     */
    protected $server_name = "server_name";
    
    /**
     * The IP address of the server under which the current script is executing. 
     * @var type 
     */
    protected $server_addr = "server_addr";
    
    /**
     * The port on the server machine being used by the web server for communication. 
     * For default setups, this will be '80'; using SSL, for instance, 
     * will change this to whatever your defined secure HTTP port is. 
     * @var type 
     */
    protected $server_port = "server_port";
    
    /**
     * The IP address from which the user is viewing the current page. 
     * @var type 
     */
    protected $remote_addr = "remote_addr";
    
    /**
     * The document root directory under which the current script is executing, 
     * as defined in the server's configuration file. 
     * @var type 
     */
    protected $document_root = "document_root";
    
    /**
     * The value given to the SERVER_ADMIN (for Apache) 
     * directive in the web server configuration file. 
     * If the script is running on a virtual host, 
     * this will be the value defined for that virtual host. 
     * @var type 
     */
    protected $server_admin = "server_admin";
    
    /**
     * The absolute pathname of the currently executing script. 
     * @var type 
     */
    protected $script_filename = "script_filename";
    
    /**
     * The port being used on the user's machine to communicate with the web server. 
     * @var type 
     */
    protected $remote_port = "remote_port";
    
    /**
     *  What revision of the CGI specification the server is using; i.e. 'CGI/1.1'. 
     * @var type 
     */
    protected $gateway_interface = "gateway_interface";
    
    /**
     * Name and revision of the information protocol via which the page was requested; 
     * i.e. 'HTTP/1.0'; 
     * Note:
     *      PHP script is terminated after sending headers (it means after producing any
     *      output without output buffering) if the request method was HEAD. 
     * @var type 
     */
    protected $server_protocol = "server_protocol";
    
    /**
     *  Which request method was used to access the page; i.e. 'GET', 'HEAD', 'POST', 'PUT'. 
     * @var type 
     */
    protected $request_method = "request_method";
    
    /**
     * The timestamp of the start of the request. Available since PHP 5.1.0. 
     * @var type 
     */
    protected $request_time = "request_time";

    /**
     * The timestamp of the start of the request, with microsecond precision. 
     * Available since PHP 5.4.0. 
     * @var type 
     */
    //protected $request_time_float = "request_time_method";
    
    /**
     * The query string, if any, via which the page was accessed. 
     * @var type 
     */
    protected $query_string = "query_string";
    
    /**
     * The URI which was given in order to access this page; for instance, '/index.html'. 
     * @var type 
     */
    protected $request_uri = "request_uri";
    
    /**
     * Contains the current script's path. This is useful for pages 
     * which need to point to themselves. 
     * The __FILE__ constant contains the full path and 
     * filename of the current (i.e. included) file. 
     * @var type 
     */
    protected $script_name = "script_name";

    /**
     *  must implement on class
     */
    abstract protected function getValue();

    /**
     *  common access method
     */
    public function printOut()
    {
        var_export($this->getValue());
    }
}

class ApacheEnvironment extends EnvironmentAbstract
{
    
    protected function getValue() 
    {
        return array(
            $_SERVER['HTTP_REFERER']        => $this->http_referer,
            $_SERVER['HTTP_HOST']           => $this->http_host,
            $_SERVER['HTTP_USER_AGENT']     => $this->http_user_agent,
            $_SERVER['HTTP_ACCEPT']         => $this->http_accept,
            $_SERVER['HTTP_ACCEPT_LANGUAGE']=> $this->http_accept_languange,
            $_SERVER['HTTP_ACCEPT_ENCODING']=> $this->http_accept_encoding,
            $_SERVER['HTTP_ACCEPT_CHARSET'] => $this->http_accept_charset,
            $_SERVER['HTTP_CONNECTION']     => $this->http_connection,
            $_SERVER['PATH']                => $this->path,
            $_SERVER['SERVER_SIGNATURE']    => $this->server_signature,
            $_SERVER['SERVER_SOFTWARE']     => $this->server_software,
            $_SERVER['SERVER_NAME']         => $this->server_name,
            $_SERVER['SERVER_ADDR']         => $this->server_addr,
            $_SERVER['REMOTE_ADDR']         => $this->remote_addr,
            $_SERVER['DOCUMENT_ROOT']       => $this->document_root,
            $_SERVER['SERVER_ADMIN']        => $this->server_admin,
            $_SERVER['SCRIPT_FILENAME']     => $this->script_filename,
            $_SERVER['REMOTE_PORT']         => $this->remote_port,
            $_SERVER['GATEWAY_INTERFACE']   => $this->gateway_interface,
            $_SERVER['SERVER_PROTOCOL']     => $this->server_protocol,
            $_SERVER['REQUEST_METHOD']      => $this->request_method,
            $_SERVER['REQUEST_TIME']        => $this->request_time,
            $_SERVER['QUERY_STRING']        => $this->query_string,
            $_SERVER['REQUEST_URI']         => $this->request_uri,
            $_SERVER['SCRIPT_NAME']         => $this->script_name
        );
    }
}

    $obj = new ApacheEnvironment();
    echo "<pre>";
    $obj->printOut() . "<br />";
    echo "</pre>";