batufa/system/classes/url.php
2009-05-29 18:16:09 -05:00

135 lines
3.1 KiB
PHP

<?php defined('SYSPATH') OR die('No direct access allowed.');
/**
* URL helper class.
*
* @package Core
* @author Kohana Team
* @copyright (c) 2007-2009 Kohana Team
* @license http://kohanaphp.com/license.html
*/
class url_Core {
public static $suffix = '';
/**
* Gets the base URL to the application. To include the current protocol,
* use TRUE. To specify a protocol, provide the protocol as a string.
*
* @param boolean add index file
* @param boolean|string add protocol and domain
* @return string
*/
public static function base($index = FALSE, $protocol = FALSE)
{
if ($protocol === TRUE)
{
if (isset($_SERVER['HTTPS']) AND $_SERVER['HTTPS'] !== 'off')
{
// Secure HTTP connection
$protocol = 'https';
}
else
{
// Standard HTTP connection
$protocol = 'http';
}
}
// Start with the configured base URL
$base_url = Kohana::$base_url;
if ($index === TRUE AND ! empty(Kohana::$index_file))
{
// Add the index file to the URL
$base_url .= Kohana::$index_file.'/';
}
if (is_string($protocol))
{
// Add the protocol and domain to the base URL
$base_url = $protocol.'://'.$_SERVER['HTTP_HOST'].$base_url;
}
return $base_url;
}
/**
* Fetches an absolute site URL based on a URI segment.
*
* @param string site URI to convert
* @param string non-default protocol
* @return string
*/
public static function site($uri = '', $protocol = FALSE)
{
// Get the path from the URI
$path = trim(parse_url($uri, PHP_URL_PATH), '/');
if ($query = parse_url($uri, PHP_URL_QUERY))
{
// ?query=string
$query = '?'.$query;
}
if ($fragment = parse_url($uri, PHP_URL_FRAGMENT))
{
// #fragment
$fragment = '#'.$fragment;
}
// Concat the URL
return url::base(TRUE, $protocol).$path.$query.$fragment;
}
/**
* Merges the current GET parameters with an array of new or overloaded
* parameters and returns the resulting query string.
*
* @param array array of GET parameters
* @return string
*/
public static function query(array $params = NULL)
{
if ( ! empty($params))
{
// Merge the current and new parameters
$params = array_merge($_GET, $params);
}
else
{
// Use only the current parameters
$params = $_GET;
}
if (empty($params))
{
// No query parameters
return '';
}
return '?'.http_build_query($params, '', '&');
}
/**
* Convert a phrase to a URL-safe title. Note that non-ASCII characters
* should be transliterated before using this function.
*
* @param string phrase to convert
* @param string word separator (- or _)
* @return string
*/
public static function title($title, $separator = '-')
{
$separator = ($separator === '-') ? '-' : '_';
// Remove all characters that are not the separator, a-z, 0-9, or whitespace
$title = preg_replace('/[^'.$separator.'a-z0-9\s]+/', '', strtolower($title));
// Replace all separator characters and whitespace by a single separator
$title = preg_replace('/['.$separator.'\s]+/', $separator, $title);
// Trim separators from the beginning and end
return trim($title, $separator);
}
} // End url