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290 lines
6.9 KiB
290 lines
6.9 KiB
7 years ago
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<?php
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/**
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* Part of the Fuel framework.
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*
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* @package Fuel
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* @version 1.8
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* @author Fuel Development Team
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* @license MIT License
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* @copyright 2010 - 2016 Fuel Development Team
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* @link http://fuelphp.com
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*/
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namespace Fuel\Core;
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// ------------------------------------------------------------------------
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/**
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* Html Class
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*
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* @package Fuel
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* @subpackage Core
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* @category Core
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* @author Alfredo Rivera
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* @link http://docs.fuelphp.com/classes/html.html
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*/
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class Html
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{
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public static $doctypes = null;
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public static $html5 = true;
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/**
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* Creates an html link
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*
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* @param string $href the url
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* @param string $text the text value
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* @param array $attr the attributes array
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* @param bool $secure true to force https, false to force http
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* @return string the html link
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*/
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public static function anchor($href, $text = null, $attr = array(), $secure = null)
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{
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if ( ! preg_match('#^(\w+://|javascript:|\#)# i', $href))
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{
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$urlparts = explode('?', $href, 2);
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$href = \Uri::create($urlparts[0], array(), isset($urlparts[1]) ? $urlparts[1] : array(), $secure);
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}
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elseif ( ! preg_match('#^(javascript:|\#)# i', $href) and is_bool($secure))
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{
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$href = http_build_url($href, array('scheme' => $secure ? 'https' : 'http'));
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// Trim the trailing slash
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$href = rtrim($href, '/');
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}
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// Create and display a URL hyperlink
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is_null($text) and $text = $href;
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$attr['href'] = $href;
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return html_tag('a', $attr, $text);
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}
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/**
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* Creates an html image tag
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*
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* Sets the alt attribute to filename of it is not supplied.
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*
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* @param string $src the source
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* @param array $attr the attributes array
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* @return string the image tag
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*/
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public static function img($src, $attr = array())
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{
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if ( ! preg_match('#^(\w+://)# i', $src))
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{
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$src = \Uri::base(false).$src;
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}
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$attr['src'] = $src;
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$attr['alt'] = (isset($attr['alt'])) ? $attr['alt'] : pathinfo($src, PATHINFO_FILENAME);
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return html_tag('img', $attr);
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}
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/**
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* Adds the given schema to the given URL if it is not already there.
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*
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* @param string $url the url
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* @param string $schema the schema
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* @return string url with schema
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*/
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public static function prep_url($url, $schema = 'http')
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{
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if ( ! preg_match('#^(\w+://|javascript:)# i', $url))
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{
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$url = $schema.'://'.$url;
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}
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return $url;
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}
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/**
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* Creates a mailto link.
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*
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* @param string $email The email address
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* @param string $text The text value
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* @param string $subject The subject
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* @param array $attr attributes for the tag
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* @return string The mailto link
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*/
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public static function mail_to($email, $text = null, $subject = null, $attr = array())
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{
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$text or $text = $email;
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$subject and $subject = '?subject='.$subject;
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return html_tag('a', array(
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'href' => 'mailto:'.$email.$subject,
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) + $attr, $text);
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}
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/**
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* Creates a mailto link with Javascript to prevent bots from picking up the
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* email address.
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*
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* @param string $email the email address
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* @param string $text the text value
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* @param string $subject the subject
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* @param array $attr attributes for the tag
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* @return string the javascript code containing email
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*/
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public static function mail_to_safe($email, $text = null, $subject = null, $attr = array())
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{
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$text or $text = str_replace('@', '[at]', $email);
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$email = explode("@", $email);
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$subject and $subject = '?subject='.$subject;
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$attr = array_to_attr($attr);
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$attr = ($attr == '' ? '' : ' ').$attr;
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$output = '<script type="text/javascript">';
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$output .= '(function() {';
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$output .= 'var user = "'.$email[0].'";';
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$output .= 'var at = "@";';
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$output .= 'var server = "'.$email[1].'";';
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$output .= "document.write('<a href=\"' + 'mail' + 'to:' + user + at + server + '$subject\"$attr>$text</a>');";
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$output .= '})();';
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$output .= '</script>';
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return $output;
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}
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/**
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* Generates a html meta tag
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*
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* @param string|array $name multiple inputs or name/http-equiv value
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* @param string $content content value
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* @param string $type name or http-equiv
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* @return string
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*/
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public static function meta($name = '', $content = '', $type = 'name')
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{
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if( ! is_array($name))
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{
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$result = html_tag('meta', array($type => $name, 'content' => $content));
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}
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elseif(is_array($name))
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{
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$result = "";
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foreach($name as $array)
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{
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$meta = $array;
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$result .= "\n" . html_tag('meta', $meta);
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}
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}
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return $result;
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}
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/**
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* Generates a html doctype tag
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*
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* @param string $type doctype declaration key from doctypes config
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* @return string
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*/
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public static function doctype($type = 'xhtml1-trans')
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{
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if(static::$doctypes === null)
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{
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\Config::load('doctypes', true);
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static::$doctypes = \Config::get('doctypes', array());
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}
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if(is_array(static::$doctypes) and isset(static::$doctypes[$type]))
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{
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if($type == "html5")
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{
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static::$html5 = true;
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}
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return static::$doctypes[$type];
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}
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else
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{
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return false;
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}
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}
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/**
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* Generates a html5 audio tag
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* It is required that you set html5 as the doctype to use this method
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*
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* @param string|array $src one or multiple audio sources
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* @param array $attr tag attributes
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* @return string
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*/
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public static function audio($src = '', $attr = false)
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{
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if(static::$html5)
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{
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if(is_array($src))
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{
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$source = '';
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foreach($src as $item)
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{
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$source .= html_tag('source', array('src' => $item));
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}
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}
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else
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{
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$source = html_tag('source', array('src' => $src));
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}
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return html_tag('audio', $attr, $source);
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}
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}
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/**
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* Generates a html un-ordered list tag
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*
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* @param array $list list items, may be nested
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* @param array|string $attr outer list attributes
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* @return string
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*/
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public static function ul(array $list = array(), $attr = false)
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{
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return static::build_list('ul', $list, $attr);
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}
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/**
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* Generates a html ordered list tag
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*
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* @param array $list list items, may be nested
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* @param array|string $attr outer list attributes
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* @return string
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*/
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public static function ol(array $list = array(), $attr = false)
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{
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return static::build_list('ol', $list, $attr);
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}
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/**
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* Generates the html for the list methods
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*
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* @param string $type list type (ol or ul)
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* @param array $list list items, may be nested
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* @param array $attr tag attributes
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* @param string $indent indentation
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* @return string
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*/
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protected static function build_list($type = 'ul', array $list = array(), $attr = false, $indent = '')
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{
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if ( ! is_array($list))
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{
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$result = false;
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}
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$out = '';
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foreach ($list as $key => $val)
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{
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if ( ! is_array($val))
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{
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$out .= $indent."\t".html_tag('li', array(), $val).PHP_EOL;
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}
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else
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{
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$out .= $indent."\t".html_tag('li', array(), $key.PHP_EOL.static::build_list($type, $val, '', $indent."\t\t").$indent."\t").PHP_EOL;
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}
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}
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$result = $indent.html_tag($type, $attr, PHP_EOL.$out.$indent).PHP_EOL;
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return $result;
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}
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}
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