[289] | 1 | <?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); |
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| 2 | /** |
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| 3 | * CodeIgniter |
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| 4 | * |
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| 5 | * An open source application development framework for PHP 5.1.6 or newer |
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| 6 | * |
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| 7 | * @package CodeIgniter |
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| 8 | * @author ExpressionEngine Dev Team |
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| 9 | * @copyright Copyright (c) 2008 - 2011, EllisLab, Inc. |
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| 10 | * @license http://codeigniter.com/user_guide/license.html |
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| 11 | * @link http://codeigniter.com |
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| 12 | * @since Version 1.0 |
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| 13 | * @filesource |
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| 14 | */ |
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| 15 | |
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| 16 | // ------------------------------------------------------------------------ |
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| 17 | |
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| 18 | /** |
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| 19 | * CodeIgniter URL Helpers |
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| 20 | * |
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| 21 | * @package CodeIgniter |
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| 22 | * @subpackage Helpers |
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| 23 | * @category Helpers |
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| 24 | * @author ExpressionEngine Dev Team |
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| 25 | * @link http://codeigniter.com/user_guide/helpers/url_helper.html |
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| 26 | */ |
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| 27 | |
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| 28 | // ------------------------------------------------------------------------ |
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| 29 | |
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| 30 | /** |
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| 31 | * Site URL |
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| 32 | * |
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| 33 | * Create a local URL based on your basepath. Segments can be passed via the |
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| 34 | * first parameter either as a string or an array. |
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| 35 | * |
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| 36 | * @access public |
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| 37 | * @param string |
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| 38 | * @return string |
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| 39 | */ |
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| 40 | if ( ! function_exists('site_url')) |
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| 41 | { |
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| 42 | function site_url($uri = '') |
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| 43 | { |
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| 44 | $CI =& get_instance(); |
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| 45 | return $CI->config->site_url($uri); |
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| 46 | } |
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| 47 | } |
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| 48 | |
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| 49 | // ------------------------------------------------------------------------ |
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| 50 | |
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| 51 | /** |
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| 52 | * Base URL |
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| 53 | * |
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| 54 | * Create a local URL based on your basepath. |
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| 55 | * Segments can be passed in as a string or an array, same as site_url |
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| 56 | * or a URL to a file can be passed in, e.g. to an image file. |
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| 57 | * |
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| 58 | * @access public |
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| 59 | * @param string |
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| 60 | * @return string |
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| 61 | */ |
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| 62 | if ( ! function_exists('base_url')) |
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| 63 | { |
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| 64 | function base_url($uri = '') |
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| 65 | { |
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| 66 | $CI =& get_instance(); |
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| 67 | return $CI->config->base_url($uri); |
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| 68 | } |
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| 69 | } |
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| 70 | |
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| 71 | // ------------------------------------------------------------------------ |
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| 72 | |
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| 73 | /** |
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| 74 | * Current URL |
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| 75 | * |
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| 76 | * Returns the full URL (including segments) of the page where this |
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| 77 | * function is placed |
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| 78 | * |
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| 79 | * @access public |
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| 80 | * @return string |
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| 81 | */ |
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| 82 | if ( ! function_exists('current_url')) |
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| 83 | { |
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| 84 | function current_url() |
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| 85 | { |
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| 86 | $CI =& get_instance(); |
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| 87 | return $CI->config->site_url($CI->uri->uri_string()); |
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| 88 | } |
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| 89 | } |
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| 90 | |
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| 91 | // ------------------------------------------------------------------------ |
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| 92 | /** |
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| 93 | * URL String |
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| 94 | * |
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| 95 | * Returns the URI segments. |
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| 96 | * |
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| 97 | * @access public |
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| 98 | * @return string |
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| 99 | */ |
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| 100 | if ( ! function_exists('uri_string')) |
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| 101 | { |
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| 102 | function uri_string() |
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| 103 | { |
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| 104 | $CI =& get_instance(); |
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| 105 | return $CI->uri->uri_string(); |
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| 106 | } |
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| 107 | } |
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| 108 | |
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| 109 | // ------------------------------------------------------------------------ |
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| 110 | |
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| 111 | /** |
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| 112 | * Index page |
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| 113 | * |
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| 114 | * Returns the "index_page" from your config file |
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| 115 | * |
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| 116 | * @access public |
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| 117 | * @return string |
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| 118 | */ |
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| 119 | if ( ! function_exists('index_page')) |
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| 120 | { |
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| 121 | function index_page() |
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| 122 | { |
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| 123 | $CI =& get_instance(); |
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| 124 | return $CI->config->item('index_page'); |
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| 125 | } |
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| 126 | } |
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| 127 | |
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| 128 | // ------------------------------------------------------------------------ |
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| 129 | |
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| 130 | /** |
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| 131 | * Anchor Link |
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| 132 | * |
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| 133 | * Creates an anchor based on the local URL. |
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| 134 | * |
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| 135 | * @access public |
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| 136 | * @param string the URL |
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| 137 | * @param string the link title |
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| 138 | * @param mixed any attributes |
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| 139 | * @return string |
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| 140 | */ |
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| 141 | if ( ! function_exists('anchor')) |
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| 142 | { |
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| 143 | function anchor($uri = '', $title = '', $attributes = '') |
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| 144 | { |
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| 145 | $title = (string) $title; |
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| 146 | |
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| 147 | if ( ! is_array($uri)) |
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| 148 | { |
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| 149 | $site_url = ( ! preg_match('!^\w+://! i', $uri)) ? site_url($uri) : $uri; |
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| 150 | } |
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| 151 | else |
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| 152 | { |
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| 153 | $site_url = site_url($uri); |
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| 154 | } |
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| 155 | |
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| 156 | if ($title == '') |
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| 157 | { |
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| 158 | $title = $site_url; |
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| 159 | } |
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| 160 | |
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| 161 | if ($attributes != '') |
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| 162 | { |
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| 163 | $attributes = _parse_attributes($attributes); |
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| 164 | } |
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| 165 | |
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| 166 | return '<a href="'.$site_url.'"'.$attributes.'>'.$title.'</a>'; |
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| 167 | } |
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| 168 | } |
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| 169 | |
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| 170 | // ------------------------------------------------------------------------ |
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| 171 | |
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| 172 | /** |
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| 173 | * Anchor Link - Pop-up version |
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| 174 | * |
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| 175 | * Creates an anchor based on the local URL. The link |
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| 176 | * opens a new window based on the attributes specified. |
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| 177 | * |
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| 178 | * @access public |
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| 179 | * @param string the URL |
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| 180 | * @param string the link title |
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| 181 | * @param mixed any attributes |
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| 182 | * @return string |
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| 183 | */ |
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| 184 | if ( ! function_exists('anchor_popup')) |
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| 185 | { |
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| 186 | function anchor_popup($uri = '', $title = '', $attributes = FALSE) |
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| 187 | { |
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| 188 | $title = (string) $title; |
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| 189 | |
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| 190 | $site_url = ( ! preg_match('!^\w+://! i', $uri)) ? site_url($uri) : $uri; |
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| 191 | |
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| 192 | if ($title == '') |
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| 193 | { |
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| 194 | $title = $site_url; |
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| 195 | } |
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| 196 | |
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| 197 | if ($attributes === FALSE) |
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| 198 | { |
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| 199 | return "<a href='javascript:void(0);' onclick=\"window.open('".$site_url."', '_blank');\">".$title."</a>"; |
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| 200 | } |
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| 201 | |
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| 202 | if ( ! is_array($attributes)) |
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| 203 | { |
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| 204 | $attributes = array(); |
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| 205 | } |
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| 206 | |
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| 207 | foreach (array('width' => '800', 'height' => '600', 'scrollbars' => 'yes', 'status' => 'yes', 'resizable' => 'yes', 'screenx' => '0', 'screeny' => '0', ) as $key => $val) |
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| 208 | { |
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| 209 | $atts[$key] = ( ! isset($attributes[$key])) ? $val : $attributes[$key]; |
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| 210 | unset($attributes[$key]); |
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| 211 | } |
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| 212 | |
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| 213 | if ($attributes != '') |
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| 214 | { |
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| 215 | $attributes = _parse_attributes($attributes); |
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| 216 | } |
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| 217 | |
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| 218 | return "<a href='javascript:void(0);' onclick=\"window.open('".$site_url."', '_blank', '"._parse_attributes($atts, TRUE)."');\"$attributes>".$title."</a>"; |
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| 219 | } |
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| 220 | } |
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| 221 | |
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| 222 | // ------------------------------------------------------------------------ |
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| 223 | |
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| 224 | /** |
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| 225 | * Mailto Link |
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| 226 | * |
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| 227 | * @access public |
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| 228 | * @param string the email address |
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| 229 | * @param string the link title |
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| 230 | * @param mixed any attributes |
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| 231 | * @return string |
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| 232 | */ |
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| 233 | if ( ! function_exists('mailto')) |
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| 234 | { |
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| 235 | function mailto($email, $title = '', $attributes = '') |
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| 236 | { |
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| 237 | $title = (string) $title; |
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| 238 | |
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| 239 | if ($title == "") |
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| 240 | { |
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| 241 | $title = $email; |
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| 242 | } |
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| 243 | |
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| 244 | $attributes = _parse_attributes($attributes); |
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| 245 | |
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| 246 | return '<a href="mailto:'.$email.'"'.$attributes.'>'.$title.'</a>'; |
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| 247 | } |
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| 248 | } |
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| 249 | |
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| 250 | // ------------------------------------------------------------------------ |
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| 251 | |
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| 252 | /** |
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| 253 | * Encoded Mailto Link |
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| 254 | * |
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| 255 | * Create a spam-protected mailto link written in Javascript |
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| 256 | * |
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| 257 | * @access public |
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| 258 | * @param string the email address |
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| 259 | * @param string the link title |
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| 260 | * @param mixed any attributes |
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| 261 | * @return string |
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| 262 | */ |
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| 263 | if ( ! function_exists('safe_mailto')) |
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| 264 | { |
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| 265 | function safe_mailto($email, $title = '', $attributes = '') |
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| 266 | { |
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| 267 | $title = (string) $title; |
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| 268 | |
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| 269 | if ($title == "") |
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| 270 | { |
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| 271 | $title = $email; |
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| 272 | } |
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| 273 | |
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| 274 | for ($i = 0; $i < 16; $i++) |
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| 275 | { |
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| 276 | $x[] = substr('<a href="mailto:', $i, 1); |
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| 277 | } |
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| 278 | |
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| 279 | for ($i = 0; $i < strlen($email); $i++) |
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| 280 | { |
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| 281 | $x[] = "|".ord(substr($email, $i, 1)); |
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| 282 | } |
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| 283 | |
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| 284 | $x[] = '"'; |
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| 285 | |
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| 286 | if ($attributes != '') |
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| 287 | { |
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| 288 | if (is_array($attributes)) |
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| 289 | { |
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| 290 | foreach ($attributes as $key => $val) |
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| 291 | { |
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| 292 | $x[] = ' '.$key.'="'; |
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| 293 | for ($i = 0; $i < strlen($val); $i++) |
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| 294 | { |
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| 295 | $x[] = "|".ord(substr($val, $i, 1)); |
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| 296 | } |
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| 297 | $x[] = '"'; |
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| 298 | } |
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| 299 | } |
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| 300 | else |
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| 301 | { |
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| 302 | for ($i = 0; $i < strlen($attributes); $i++) |
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| 303 | { |
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| 304 | $x[] = substr($attributes, $i, 1); |
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| 305 | } |
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| 306 | } |
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| 307 | } |
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| 308 | |
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| 309 | $x[] = '>'; |
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| 310 | |
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| 311 | $temp = array(); |
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| 312 | for ($i = 0; $i < strlen($title); $i++) |
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| 313 | { |
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| 314 | $ordinal = ord($title[$i]); |
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| 315 | |
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| 316 | if ($ordinal < 128) |
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| 317 | { |
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| 318 | $x[] = "|".$ordinal; |
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| 319 | } |
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| 320 | else |
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| 321 | { |
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| 322 | if (count($temp) == 0) |
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| 323 | { |
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| 324 | $count = ($ordinal < 224) ? 2 : 3; |
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| 325 | } |
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| 326 | |
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| 327 | $temp[] = $ordinal; |
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| 328 | if (count($temp) == $count) |
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| 329 | { |
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| 330 | $number = ($count == 3) ? (($temp['0'] % 16) * 4096) + (($temp['1'] % 64) * 64) + ($temp['2'] % 64) : (($temp['0'] % 32) * 64) + ($temp['1'] % 64); |
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| 331 | $x[] = "|".$number; |
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| 332 | $count = 1; |
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| 333 | $temp = array(); |
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| 334 | } |
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| 335 | } |
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| 336 | } |
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| 337 | |
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| 338 | $x[] = '<'; $x[] = '/'; $x[] = 'a'; $x[] = '>'; |
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| 339 | |
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| 340 | $x = array_reverse($x); |
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| 341 | ob_start(); |
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| 342 | |
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| 343 | ?><script type="text/javascript"> |
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| 344 | //<![CDATA[ |
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| 345 | var l=new Array(); |
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| 346 | <?php |
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| 347 | $i = 0; |
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| 348 | foreach ($x as $val){ ?>l[<?php echo $i++; ?>]='<?php echo $val; ?>';<?php } ?> |
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| 349 | |
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| 350 | for (var i = l.length-1; i >= 0; i=i-1){ |
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| 351 | if (l[i].substring(0, 1) == '|') document.write("&#"+unescape(l[i].substring(1))+";"); |
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| 352 | else document.write(unescape(l[i]));} |
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| 353 | //]]> |
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| 354 | </script><?php |
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| 355 | |
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| 356 | $buffer = ob_get_contents(); |
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| 357 | ob_end_clean(); |
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| 358 | return $buffer; |
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| 359 | } |
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| 360 | } |
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| 361 | |
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| 362 | // ------------------------------------------------------------------------ |
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| 363 | |
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| 364 | /** |
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| 365 | * Auto-linker |
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| 366 | * |
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| 367 | * Automatically links URL and Email addresses. |
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| 368 | * Note: There's a bit of extra code here to deal with |
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| 369 | * URLs or emails that end in a period. We'll strip these |
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| 370 | * off and add them after the link. |
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| 371 | * |
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| 372 | * @access public |
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| 373 | * @param string the string |
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| 374 | * @param string the type: email, url, or both |
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| 375 | * @param bool whether to create pop-up links |
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| 376 | * @return string |
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| 377 | */ |
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| 378 | if ( ! function_exists('auto_link')) |
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| 379 | { |
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| 380 | function auto_link($str, $type = 'both', $popup = FALSE) |
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| 381 | { |
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| 382 | if ($type != 'email') |
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| 383 | { |
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| 384 | if (preg_match_all("#(^|\s|\()((http(s?)://)|(www\.))(\w+[^\s\)\<]+)#i", $str, $matches)) |
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| 385 | { |
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| 386 | $pop = ($popup == TRUE) ? " target=\"_blank\" " : ""; |
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| 387 | |
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| 388 | for ($i = 0; $i < count($matches['0']); $i++) |
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| 389 | { |
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| 390 | $period = ''; |
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| 391 | if (preg_match("|\.$|", $matches['6'][$i])) |
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| 392 | { |
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| 393 | $period = '.'; |
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| 394 | $matches['6'][$i] = substr($matches['6'][$i], 0, -1); |
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| 395 | } |
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| 396 | |
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| 397 | $str = str_replace($matches['0'][$i], |
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| 398 | $matches['1'][$i].'<a href="http'. |
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| 399 | $matches['4'][$i].'://'. |
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| 400 | $matches['5'][$i]. |
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| 401 | $matches['6'][$i].'"'.$pop.'>http'. |
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| 402 | $matches['4'][$i].'://'. |
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| 403 | $matches['5'][$i]. |
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| 404 | $matches['6'][$i].'</a>'. |
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| 405 | $period, $str); |
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| 406 | } |
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| 407 | } |
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| 408 | } |
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| 409 | |
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| 410 | if ($type != 'url') |
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| 411 | { |
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| 412 | if (preg_match_all("/([a-zA-Z0-9_\.\-\+]+)@([a-zA-Z0-9\-]+)\.([a-zA-Z0-9\-\.]*)/i", $str, $matches)) |
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| 413 | { |
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| 414 | for ($i = 0; $i < count($matches['0']); $i++) |
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| 415 | { |
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| 416 | $period = ''; |
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| 417 | if (preg_match("|\.$|", $matches['3'][$i])) |
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| 418 | { |
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| 419 | $period = '.'; |
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| 420 | $matches['3'][$i] = substr($matches['3'][$i], 0, -1); |
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| 421 | } |
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| 422 | |
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| 423 | $str = str_replace($matches['0'][$i], safe_mailto($matches['1'][$i].'@'.$matches['2'][$i].'.'.$matches['3'][$i]).$period, $str); |
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| 424 | } |
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| 425 | } |
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| 426 | } |
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| 427 | |
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| 428 | return $str; |
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| 429 | } |
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| 430 | } |
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| 431 | |
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| 432 | // ------------------------------------------------------------------------ |
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| 433 | |
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| 434 | /** |
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| 435 | * Prep URL |
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| 436 | * |
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| 437 | * Simply adds the http:// part if no scheme is included |
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| 438 | * |
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| 439 | * @access public |
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| 440 | * @param string the URL |
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| 441 | * @return string |
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| 442 | */ |
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| 443 | if ( ! function_exists('prep_url')) |
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| 444 | { |
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| 445 | function prep_url($str = '') |
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| 446 | { |
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| 447 | if ($str == 'http://' OR $str == '') |
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| 448 | { |
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| 449 | return ''; |
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| 450 | } |
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| 451 | |
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| 452 | $url = parse_url($str); |
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| 453 | |
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| 454 | if ( ! $url OR ! isset($url['scheme'])) |
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| 455 | { |
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| 456 | $str = 'http://'.$str; |
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| 457 | } |
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| 458 | |
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| 459 | return $str; |
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| 460 | } |
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| 461 | } |
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| 462 | |
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| 463 | // ------------------------------------------------------------------------ |
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| 464 | |
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| 465 | /** |
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| 466 | * Create URL Title |
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| 467 | * |
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| 468 | * Takes a "title" string as input and creates a |
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| 469 | * human-friendly URL string with a "separator" string |
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| 470 | * as the word separator. |
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| 471 | * |
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| 472 | * @access public |
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| 473 | * @param string the string |
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| 474 | * @param string the separator |
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| 475 | * @return string |
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| 476 | */ |
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| 477 | if ( ! function_exists('url_title')) |
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| 478 | { |
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| 479 | function url_title($str, $separator = '-', $lowercase = FALSE) |
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| 480 | { |
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| 481 | if ($separator == 'dash') |
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| 482 | { |
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| 483 | $separator = '-'; |
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| 484 | } |
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| 485 | else if ($separator == 'underscore') |
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| 486 | { |
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| 487 | $separator = '_'; |
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| 488 | } |
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| 489 | |
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| 490 | $q_separator = preg_quote($separator); |
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| 491 | |
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| 492 | $trans = array( |
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| 493 | '&.+?;' => '', |
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| 494 | '[^a-z0-9 _-]' => '', |
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| 495 | '\s+' => $separator, |
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| 496 | '('.$q_separator.')+' => $separator |
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| 497 | ); |
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| 498 | |
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| 499 | $str = strip_tags($str); |
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| 500 | |
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| 501 | foreach ($trans as $key => $val) |
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| 502 | { |
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| 503 | $str = preg_replace("#".$key."#i", $val, $str); |
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| 504 | } |
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| 505 | |
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| 506 | if ($lowercase === TRUE) |
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| 507 | { |
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| 508 | $str = strtolower($str); |
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| 509 | } |
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| 510 | |
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| 511 | return trim($str, $separator); |
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| 512 | } |
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| 513 | } |
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| 514 | |
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| 515 | // ------------------------------------------------------------------------ |
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| 516 | |
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| 517 | /** |
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| 518 | * Header Redirect |
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| 519 | * |
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| 520 | * Header redirect in two flavors |
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| 521 | * For very fine grained control over headers, you could use the Output |
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| 522 | * Library's set_header() function. |
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| 523 | * |
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| 524 | * @access public |
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| 525 | * @param string the URL |
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| 526 | * @param string the method: location or redirect |
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| 527 | * @return string |
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| 528 | */ |
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| 529 | if ( ! function_exists('redirect')) |
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| 530 | { |
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| 531 | function redirect($uri = '', $method = 'location', $http_response_code = 302) |
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| 532 | { |
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| 533 | if ( ! preg_match('#^https?://#i', $uri)) |
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| 534 | { |
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| 535 | $uri = site_url($uri); |
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| 536 | } |
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| 537 | |
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| 538 | switch($method) |
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| 539 | { |
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| 540 | case 'refresh' : header("Refresh:0;url=".$uri); |
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| 541 | break; |
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| 542 | default : header("Location: ".$uri, TRUE, $http_response_code); |
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| 543 | break; |
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| 544 | } |
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| 545 | exit; |
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| 546 | } |
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| 547 | } |
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| 548 | |
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| 549 | // ------------------------------------------------------------------------ |
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| 550 | |
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| 551 | /** |
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| 552 | * Parse out the attributes |
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| 553 | * |
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| 554 | * Some of the functions use this |
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| 555 | * |
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| 556 | * @access private |
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| 557 | * @param array |
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| 558 | * @param bool |
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| 559 | * @return string |
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| 560 | */ |
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| 561 | if ( ! function_exists('_parse_attributes')) |
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| 562 | { |
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| 563 | function _parse_attributes($attributes, $javascript = FALSE) |
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| 564 | { |
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| 565 | if (is_string($attributes)) |
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| 566 | { |
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| 567 | return ($attributes != '') ? ' '.$attributes : ''; |
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| 568 | } |
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| 569 | |
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| 570 | $att = ''; |
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| 571 | foreach ($attributes as $key => $val) |
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| 572 | { |
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| 573 | if ($javascript == TRUE) |
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| 574 | { |
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| 575 | $att .= $key . '=' . $val . ','; |
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| 576 | } |
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| 577 | else |
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| 578 | { |
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| 579 | $att .= ' ' . $key . '="' . $val . '"'; |
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| 580 | } |
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| 581 | } |
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| 582 | |
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| 583 | if ($javascript == TRUE AND $att != '') |
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| 584 | { |
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| 585 | $att = substr($att, 0, -1); |
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| 586 | } |
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| 587 | |
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| 588 | return $att; |
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| 589 | } |
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| 590 | } |
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| 591 | |
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| 592 | |
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| 593 | /* End of file url_helper.php */ |
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| 594 | /* Location: ./system/helpers/url_helper.php */ |
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