Extension for Kohana HTML helper

MY_html.php

<?php defined('SYSPATH') or die('No direct script access.');
 
class html extends html_Core 
{
 	/**
 	 * Minify URI Builder
 	 *
 	 * @param string $href 
 	 * @param string $type 
 	 * @return string 
 	 * @author j4kp07
 	 */
	public function minify($href, $type = 'CSS')
	{
		$compiled = (is_array($href)) ? implode("." . strtolower($type) . ",", $href): $href;
		
		if (strtolower($type) == 'css') 
			$output = '<link rel="stylesheet" href="/min/?f=' . $compiled . '.css" type="text/css" media="screen" charset="utf-8" />' . "\r\n\t";
		
		if (strtolower($type) == 'js') 
			$output = '<script type="text/javascript" src="/min/?f=' . $compiled . '.js" charset="utf-8"></script>' . "\r\n\t";
		
		return $output;
	}
	
	/**
	 * Creates a stylesheet link with version based on datetime stamp.
	 *
	 * @param   string|array  filename, or array of filenames to match to array of medias
	 * @param   string|array  media type of stylesheet, or array to match filenames
	 * @param   boolean       include the index_page in the link
	 * @return  string
 	 * 
	 * @todo stylesheet helper should detect 'config.display_errors' and minify when necessary
	 */
	public static function stylesheet($style, $media = FALSE, $index = FALSE, $debug = FALSE)
	{
		$output = (!$debug) ? html::minify($style) : html::link($style, 'stylesheet', 'text/css', '.css', $media, $index);
		return $output;
	}
	
	/**
	 * Creates a link tag with version based on datetime stamp.
	 *
	 * @param   string|array  filename
	 * @param   string|array  relationship
	 * @param   string|array  mimetype
	 * @param   string        specifies suffix of the file
	 * @param   string|array  specifies on what device the document will be displayed
	 * @param   boolean       include the index_page in the link
	 * @return  string
	 */
	public static function link($href, $rel, $type, $suffix = FALSE, $media = FALSE, $index = FALSE)
	{
		$compiled = '';
		
		if (is_array($href))
		{
			foreach ($href as $_href)
			{
				$_rel   = is_array($rel) ? array_shift($rel) : $rel;
				$_type  = is_array($type) ? array_shift($type) : $type;
				$_media = is_array($media) ? array_shift($media) : $media;

				$compiled .= html::link($_href, $_rel, $_type, $suffix, $_media, $index);
			}
		}
		else
		{
			$_href = $href;
			
			if (strpos($href, '://') === FALSE)
			{
				$href = url::base($index).$href; // Make the URL absolute
			}

			$length = strlen($suffix);
			
			if ($length > 0 AND substr_compare($href, $suffix, -$length, $length, FALSE) !== 0)
			{
				$href .= $suffix; // Add the defined suffix
				$_href .= $suffix;
				
				$filename = DOCROOT . trim($_href, '/'); // Add version
				if (file_exists($filename)) 
				{
					$version = date("mdYHis", filemtime($filename));
					$href .= '?' . $version;
				}
			}

			$attr = array
			(
				'rel' => $rel,
				'type' => $type,
				'href' => $href,
			);

			if (!empty($media))
			{
				$attr['media'] = $media; // Add the media type to the attributes
			}

			$compiled = '<link'.html::attributes($attr).' />';
		}

		return $compiled."\n";
	}
	
	/**
	 * Creates a script link with version based on datetime stamp.
	 *
	 * @param   string|array  filename
	 * @param   boolean       include the index_page in the link
	 * @return  string
	 * 
	 * @todo script helper should detect 'config.display_errors' and minify when necessary
	 */
	public static function script($script, $index = FALSE, $debug = FALSE)
	{
		$compiled = '';
		
		if (!$debug) 
		{
			$compiled = html::minify($script, 'js');
		}
		else if (is_array($script))
		{
			foreach ($script as $name)
			{
				$compiled .= html::script($name, $index, $debug);
			}
		}
		else
		{
			$_script = $script;
			
			if (strpos($script, '://') === FALSE)
			{
				$script = url::base((bool) $index).$script; // Add the suffix only when it's not already present
			}

			if (substr_compare($script, '.js', -3, 3, FALSE) !== 0)
			{
				$script .= '.js'; // Add the javascript suffix
				$_script .= '.js';
				
				$filename = DOCROOT . trim($_script, '/'); // Add version
				if (file_exists($filename)) 
				{
					$version = date("mdYHis", filemtime($filename));
					$script .= '?' . $version;
				}
			}

			$compiled = '<script type="text/javascript" src="'.$script.'"></script>';
		}

		return $compiled."\n";
	}
	
	/**
	 * apply || decode, htmlspecialchars || htmlentities recursivly to arrays() || to regular $variables. 
	 * Also protect against "double encoding".
	 * May also return a default value if variable not found.
	 * 
	 * Source: http://us3.php.net/manual/en/function.htmlspecialchars.php
	 *
	 * @author j4kp07
	 */
	public static function specialchars_or(&$mixed , $default = '', $quote_style = ENT_QUOTES)
	{
		$mixed = common::set_default($mixed);
		return is_array($mixed) ? array_map('htmlspecialchars_or',$mixed, array_fill(0,count($mixed),$quote_style)) : htmlspecialchars(htmlspecialchars_decode($mixed, $quote_style ),$quote_style);
	}

	public static function specialchars_decode(&$mixed, $default = '', $quote_style = ENT_QUOTES) 
	{
	    $mixed = common::set_default($mixed);
		if(is_array($mixed))
		{				    
	      return array_map('htmlspecialchars_decode',$mixed, array_fill(0,count($mixed),$quote_style));
	  	}
	  
		$trans_table = get_html_translation_table( HTML_SPECIALCHARS, $quote_style );
	    
	    return (strtr($mixed, array_flip($trans_table)));
	}

	public static function entities_or(&$mixed, $default = '', $quote_style = ENT_QUOTES)
	{
		$mixed = common::set_default($mixed);
	    return is_array($mixed) ? array_map('htmlentities_or',$mixed, array_fill(0,count($mixed),$quote_style)) : htmlentities(htmlentities_decode($mixed, $quote_style ),$quote_style);
	}

	public static function entities_decode(&$mixed, $default = '', $quote_style = ENT_QUOTES) 
	{
		$mixed = common::set_default($mixed);		
		if(is_array($mixed))
		{
			return array_map('htmlentities_decode',$mixed, array_fill(0,count($mixed),$quote_style));
		}
	    
		$trans_table = get_html_translation_table(HTML_ENTITIES, $quote_style );
	    
	    return (strtr($mixed, array_flip($trans_table)));
	}
}

Provides support for minify (http://code.google.com/p/minify/) and version timestamps for scripts and stylesheets. Also adds recursive HTML entities and HTML special character functions.