ci-bonfire / Sprint

system/helpers/html_helper.php

<?php

For compatibility and reusability of your code, PSR1 recommends that a file should introduce either new symbols (like classes, functions, etc.) or have side-effects (like outputting something, or including other files), but not both at the same time. The first symbol is defined on line 64 and the first side effect is on line 38.

/**
 * CodeIgniter
 *
 * An open source application development framework for PHP
 *
 * This content is released under the MIT License (MIT)
 *
 * Copyright (c) 2014 - 2015, British Columbia Institute of Technology
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 * @package	CodeIgniter
 * @author	EllisLab Dev Team
 * @copyright	Copyright (c) 2008 - 2014, EllisLab, Inc. (http://ellislab.com/)
 * @copyright	Copyright (c) 2014 - 2015, British Columbia Institute of Technology (http://bcit.ca/)
 * @license	http://opensource.org/licenses/MIT	MIT License
 * @link	http://codeigniter.com
 * @since	Version 1.0.0
 * @filesource
 */
defined('BASEPATH') OR exit('No direct script access allowed');

/**
 * CodeIgniter HTML Helpers
 *
 * @package		CodeIgniter
 * @subpackage	Helpers
 * @category	Helpers
 * @author		EllisLab Dev Team
 * @link		http://codeigniter.com/user_guide/helpers/html_helper.html
 */

// ------------------------------------------------------------------------

if ( ! function_exists('heading'))
{
	/**
	 * Heading
	 *
	 * Generates an HTML heading tag.
	 *
	 * @param	string	content
	 * @param	int	heading level
	 * @param	string
	 * @return	string
	 */
	function heading($data = '', $h = '1', $attributes = '')
	{
		return '<h'.$h._stringify_attributes($attributes).'>'.$data.'</h'.$h.'>';
	}
}

// ------------------------------------------------------------------------

if ( ! function_exists('ul'))
{
	/**
	 * Unordered List
	 *
	 * Generates an HTML unordered list from an single or multi-dimensional array.
	 *
	 * @param	array
	 * @param	mixed
	 * @return	string
	 */
	function ul($list, $attributes = '')
	{
		return _list('ul', $list, $attributes);
	}
}

// ------------------------------------------------------------------------

if ( ! function_exists('ol'))
{
	/**
	 * Ordered List
	 *
	 * Generates an HTML ordered list from an single or multi-dimensional array.
	 *
	 * @param	array
	 * @param	mixed
	 * @return	string
	 */
	function ol($list, $attributes = '')
	{
		return _list('ol', $list, $attributes);
	}
}

// ------------------------------------------------------------------------

if ( ! function_exists('_list'))
{
	/**
	 * Generates the list
	 *
	 * Generates an HTML ordered list from an single or multi-dimensional array.
	 *
	 * @param	string
	 * @param	mixed
	 * @param	mixed
	 * @param	int
	 * @return	string
	 */
	function _list($type = 'ul', $list = array(), $attributes = '', $depth = 0)
	{
		// If an array wasn't submitted there's nothing to do...
		if ( ! is_array($list))
		{
			return $list;
		}

		// Set the indentation based on the depth
		$out = str_repeat(' ', $depth)
			// Write the opening list tag
			.'<'.$type._stringify_attributes($attributes).">\n";


		// Cycle through the list elements.  If an array is
		// encountered we will recursively call _list()

		static $_last_list_item = '';
		foreach ($list as $key => $val)
		{
			$_last_list_item = $key;

			$out .= str_repeat(' ', $depth + 2).'<li>';

			if ( ! is_array($val))
			{
				$out .= $val;
			}
			else
			{
				$out .= $_last_list_item."\n"._list($type, $val, '', $depth + 4).str_repeat(' ', $depth + 2);
			}

			$out .= "</li>\n";
		}

		// Set the indentation for the closing tag and apply it
		return $out.str_repeat(' ', $depth).'</'.$type.">\n";
	}
}

// ------------------------------------------------------------------------

if ( ! function_exists('img'))
{
	/**
	 * Image
	 *
	 * Generates an <img /> element
	 *
	 * @param	mixed
	 * @param	bool
	 * @param	mixed
	 * @return	string
	 */
	function img($src = '', $index_page = FALSE, $attributes = '')
	{
		if ( ! is_array($src) )
		{
			$src = array('src' => $src);
		}

		// If there is no alt attribute defined, set it to an empty string
		if ( ! isset($src['alt']))
		{
			$src['alt'] = '';
		}

		$img = '<img';

		foreach ($src as $k => $v)
		{
			if ($k === 'src' && ! preg_match('#^([a-z]+:)?//#i', $v))
			{
				if ($index_page === TRUE)
				{
					$img .= ' src="'.get_instance()->config->site_url($v).'"';
				}
				else
				{
					$img .= ' src="'.get_instance()->config->slash_item('base_url').$v.'"';
				}
			}
			else
			{
				$img .= ' '.$k.'="'.$v.'"';
			}
		}

		return $img._stringify_attributes($attributes).' />';
	}
}

// ------------------------------------------------------------------------

if ( ! function_exists('doctype'))
{
	/**
	 * Doctype
	 *
	 * Generates a page document type declaration
	 *
	 * Examples of valid options: html5, xhtml-11, xhtml-strict, xhtml-trans,
	 * xhtml-frame, html4-strict, html4-trans, and html4-frame.
	 * All values are saved in the doctypes config file.
	 *
	 * @param	string	type	The doctype to be generated
	 * @return	string
	 */
	function doctype($type = 'xhtml1-strict')
	{
		static $doctypes;

		if ( ! is_array($doctypes))
		{
			if (file_exists(APPPATH.'config/doctypes.php'))
			{
				include(APPPATH.'config/doctypes.php');
			}

			if (file_exists(APPPATH.'config/'.ENVIRONMENT.'/doctypes.php'))
			{
				include(APPPATH.'config/'.ENVIRONMENT.'/doctypes.php');
			}

			if (empty($_doctypes) OR ! is_array($_doctypes))
			{
				$doctypes = array();
				return FALSE;
			}

			$doctypes = $_doctypes;
		}

		return isset($doctypes[$type]) ? $doctypes[$type] : FALSE;
	}
}

// ------------------------------------------------------------------------

if ( ! function_exists('link_tag'))
{
	/**
	 * Link
	 *
	 * Generates link to a CSS file
	 *
	 * @param	mixed	stylesheet hrefs or an array
	 * @param	string	rel
	 * @param	string	type
	 * @param	string	title
	 * @param	string	media
	 * @param	bool	should index_page be added to the css path
	 * @return	string
	 */
	function link_tag($href = '', $rel = 'stylesheet', $type = 'text/css', $title = '', $media = '', $index_page = FALSE)
	{
		$CI =& get_instance();
		$link = '<link ';

		if (is_array($href))
		{
			foreach ($href as $k => $v)
			{
				if ($k === 'href' && ! preg_match('#^([a-z]+:)?//#i', $v))
				{
					if ($index_page === TRUE)
					{
						$link .= 'href="'.$CI->config->site_url($v).'" ';
					}
					else
					{
						$link .= 'href="'.$CI->config->slash_item('base_url').$v.'" ';
					}
				}
				else
				{
					$link .= $k.'="'.$v.'" ';
				}
			}
		}
		else
		{
			if (preg_match('#^([a-z]+:)?//#i', $href))
			{
				$link .= 'href="'.$href.'" ';
			}
			elseif ($index_page === TRUE)
			{
				$link .= 'href="'.$CI->config->site_url($href).'" ';
			}
			else
			{
				$link .= 'href="'.$CI->config->slash_item('base_url').$href.'" ';
			}

			$link .= 'rel="'.$rel.'" type="'.$type.'" ';

			if ($media !== '')
			{
				$link .= 'media="'.$media.'" ';
			}

			if ($title !== '')
			{
				$link .= 'title="'.$title.'" ';
			}
		}

		return $link."/>\n";
	}
}

// ------------------------------------------------------------------------

if ( ! function_exists('meta'))
{
	/**
	 * Generates meta tags from an array of key/values
	 *
	 * @param	array
	 * @param	string
	 * @param	string
	 * @param	string
	 * @return	string
	 */
	function meta($name = '', $content = '', $type = 'name', $newline = "\n")
	{
		// Since we allow the data to be passes as a string, a simple array
		// or a multidimensional one, we need to do a little prepping.
		if ( ! is_array($name))
		{
			$name = array(array('name' => $name, 'content' => $content, 'type' => $type, 'newline' => $newline));
		}
		elseif (isset($name['name']))
		{
			// Turn single array into multidimensional
			$name = array($name);
		}

		$str = '';
		foreach ($name as $meta)
		{
			$type		= (isset($meta['type']) && $meta['type'] !== 'name')	? 'http-equiv' : 'name';
			$name		= isset($meta['name'])					? $meta['name'] : '';
			$content	= isset($meta['content'])				? $meta['content'] : '';
			$newline	= isset($meta['newline'])				? $meta['newline'] : "\n";

			$str .= '<meta '.$type.'="'.$name.'" content="'.$content.'" />'.$newline;
		}

		return $str;
	}
}

// ------------------------------------------------------------------------

if ( ! function_exists('br'))
{
	/**
	 * Generates HTML BR tags based on number supplied
	 *
	 * @deprecated	3.0.0	Use str_repeat() instead
	 * @param	int	$count	Number of times to repeat the tag
	 * @return	string
	 */
	function br($count = 1)
	{
		return str_repeat('<br />', $count);
	}
}

// ------------------------------------------------------------------------

if ( ! function_exists('nbs'))
{
	/**
	 * Generates non-breaking space entities based on number supplied
	 *
	 * @deprecated	3.0.0	Use str_repeat() instead
	 * @param	int
	 * @return	string
	 */
	function nbs($num = 1)
	{
		return str_repeat('&nbsp;', $num);
	}
}