<?php if (!defined('BASEPATH')) exit('No direct script access allowed'); /** * Code Igniter * * An open source application development framework for PHP 4.3.2 or newer * * @package CodeIgniter * @author Rick Ellis * @copyright Copyright (c) 2006, pMachine, Inc. * @license http://www.codeignitor.com/user_guide/license.html * @link http://www.codeigniter.com * @since Version 1.0 * @filesource */ // ------------------------------------------------------------------------ /** * Code Igniter URL Helpers * * @package CodeIgniter * @subpackage Helpers * @category Helpers * @author Rick Ellis * @link http://www.codeigniter.com/user_guide/helpers/url_helper.html */ // ------------------------------------------------------------------------ /** * Site URL * * Create a local URL based on your basepath. Segments can be passed via the * first parameter either as a string or an array. * * @access public * @param string * @return string */ function site_url($uri = '') { $obj =& get_instance(); return $obj->config->site_url($uri); } // ------------------------------------------------------------------------ /** * Base URL * * Returns the "base_url" item from your config file * * @access public * @return string */ function base_url() { $obj =& get_instance(); return $obj->config->slash_item('base_url'); } // ------------------------------------------------------------------------ /** * Index page * * Returns the "index_page" from your config file * * @access public * @return string */ function index_page() { $obj =& get_instance(); return $obj->config->item('index_page'); } // ------------------------------------------------------------------------ /** * Anchor Link * * Creates an anchor based on the local URL. * * @access public * @param string the URL * @param string the link title * @param mixed any attributes * @return string */ function anchor($uri = '', $title = '', $attributes = '') { if ( ! is_array($uri)) { $site_url = ( ! preg_match('!^\w+://!i', $uri)) ? site_url($uri) : $uri; } else { $site_url = site_url($uri); } if ($title == '') { $title = $site_url; } if ($attributes == '') { $attributes = ' title="'.$title.'"'; } else { if (is_array($attributes)) { $attributes = parse_url_attributes($attributes); } } return '<a href="'.$site_url.'"'.$attributes.'>'.$title.'</a>'; } // ------------------------------------------------------------------------ /** * Anchor Link - Pop-up version * * Creates an anchor based on the local URL. The link * opens a new window based on the attributes specified. * * @access public * @param string the URL * @param string the link title * @param mixed any attributes * @return string */ function anchor_popup($uri = '', $title = '', $attributes = FALSE) { $site_url = ( ! preg_match('!^\w+://!i', $uri)) ? site_url($uri) : $uri; if ($title == '') { $title = $site_url; } if ($attributes === FALSE) { return "<a href='javascript:void(0);' onclick=\"window.open('".$site_url."', '_blank');\">".$title."</a>"; } if ( ! is_array($attributes)) { $attributes = array(); } foreach (array('width' => '800', 'height' => '600', 'scrollbars' => 'yes', 'status' => 'yes', 'resizable' => 'yes', 'screenx' => '0', 'screeny' => '0', ) as $key => $val) { $atts[$key] = ( ! isset($attributes[$key])) ? $val : $attributes[$key]; } return "<a href='javascript:void(0);' onclick=\"window.open('".$site_url."', '_blank', '".parse_url_attributes($atts, TRUE)."');\">".$title."</a>"; } // ------------------------------------------------------------------------ /** * Mailto Link * * @access public * @param string the email address * @param string the link title * @param mixed any attributes * @return string */ function mailto($email, $title = '', $attributes = '') { if ($title == "") { $title = $email; } if (is_array($attributes)) { $attributes = parse_url_attributes($attributes); } return '<a href="mailto:'.$email.'"'.$attributes.'>'.$title.'</a>'; } // ------------------------------------------------------------------------ /** * Encoded Mailto Link * * Create a spam-protected mailto link written in Javascript * * @access public * @param string the email address * @param string the link title * @param mixed any attributes * @return string */ function safe_mailto($email, $title = '', $attributes = '') { if ($title == "") { $title = $email; } for ($i = 0; $i < 16; $i++) { $x[] = substr('<a href="mailto:', $i, 1); } for ($i = 0; $i < strlen($email); $i++) { $x[] = "|".ord(substr($email, $i, 1)); } $x[] = '"'; if ($attributes != '') { if (is_array($attributes)) { foreach ($attributes as $key => $val) { $x[] = ' '.$key.'="'; for ($i = 0; $i < strlen($val); $i++) { $x[] = "|".ord(substr($val, $i, 1)); } $x[] = '"'; } } else { for ($i = 0; $i < strlen($attributes); $i++) { $x[] = substr($attributes, $i, 1); } } } $x[] = '>'; $temp = array(); for ($i = 0; $i < strlen($title); $i++) { $ordinal = ord($title[$i]); if ($ordinal < 128) { $x[] = "|".$ordinal; } else { if (count($temp) == 0) { $count = ($ordinal < 224) ? 2 : 3; } $temp[] = $ordinal; if (count($temp) == $count) { $number = ($count == 3) ? (($temp['0'] % 16) * 4096) + (($temp['1'] % 64) * 64) + ($temp['2'] % 64) : (($temp['0'] % 32) * 64) + ($temp['1'] % 64); $x[] = "|".$number; $count = 1; $temp = array(); } } } $x[] = '<'; $x[] = '/'; $x[] = 'a'; $x[] = '>'; $x = array_reverse($x); ob_start(); ?><script type="text/javascript"> //<![CDATA[ var l=new Array(); <?php $i = 0; foreach ($x as $val){ ?>l[<?php echo $i++; ?>]='<?php echo $val; ?>';<?php } ?> for (var i = l.length-1; i >= 0; i=i-1){ if (l[i].substring(0, 1) == '|') document.write("&#"+unescape(l[i].substring(1))+";"); else document.write(unescape(l[i]));} //]]> </script><?php $buffer = ob_get_contents(); ob_end_clean(); return $buffer; } // ------------------------------------------------------------------------ /** * Auto-linker * * Automatically links URL and Email addresses. * Note: There's a bit of extra code here to deal with * URLs or emails that end in a period. We'll strip these * off and add them after the link. * * @access public * @param string the string * @param string the type: email, url, or both * @param bool whether to create pop-up links * @return string */ function auto_link($str, $type = 'both', $popup = FALSE) { if ($type != 'email') { if (preg_match_all("#(^|\s|\()((http(s?)://)|(www\.))(\w+[^\s\)\<]+)#i", $str, $matches)) { $pop = ($popup == TRUE) ? " target=\"_blank\" " : ""; for ($i = 0; $i < sizeof($matches['0']); $i++) { $period = ''; if (preg_match("|\.$|", $matches['6'][$i])) { $period = '.'; $matches['6'][$i] = substr($matches['6'][$i], 0, -1); } $str = str_replace($matches['0'][$i], $matches['1'][$i].'<a href="http'. $matches['4'][$i].'://'. $matches['5'][$i]. $matches['6'][$i].'"'.$pop.'>http'. $matches['4'][$i].'://'. $matches['5'][$i]. $matches['6'][$i].'</a>'. $period, $str); } } } if ($type != 'url') { if (preg_match_all("/([a-zA-Z0-9_\.\-]+)@([a-zA-Z0-9\-]+)\.([a-zA-Z0-9\-\.]*)/i", $str, $matches)) { for ($i = 0; $i < sizeof($matches['0']); $i++) { $period = ''; if (preg_match("|\.$|", $matches['3'][$i])) { $period = '.'; $matches['3'][$i] = substr($matches['3'][$i], 0, -1); } $str = str_replace($matches['0'][$i], safe_mailto($matches['1'][$i].'@'.$matches['2'][$i].'.'.$matches['3'][$i]).$period, $str); } } } return $str; } // ------------------------------------------------------------------------ /** * Prep URL * * Simply adds the http:// part if missing * * @access public * @param string the URL * @return string */ function prep_url($str = '') { if ($str == 'http://' OR $str == '') { return ''; } if (substr($str, 0, 7) != 'http://' && substr($str, 0, 8) != 'https://') { $str = 'http://'.$str; } return $str; } // ------------------------------------------------------------------------ /** * Create URL Title * * Takes a "title" string as input and creates a * human-friendly URL string with either a dash * or an underscore as the word separator. * * @access public * @param string the string * @param string the separator: dash, or underscore * @return string */ function url_title($str, $separator = 'dash') { if ($separator == 'dash') { $search = '_'; $replace = '-'; } else { $search = '-'; $replace = '_'; } $trans = array( $search => $replace, "\s+" => $replace, "[^a-z0-9".$replace."]" => '', $replace."+" => $replace, $replace."$" => '', "^".$replace => '' ); $str = strip_tags(strtolower($str)); foreach ($trans as $key => $val) { $str = preg_replace("#".$key."#", $val, $str); } return trim(stripslashes($str)); } // ------------------------------------------------------------------------ /** * Header Redirect * * Header redirect in two flavors * * @access public * @param string the URL * @param string the method: location or redirect * @return string */ function redirect($uri = '', $method = 'location') { switch($method) { case 'refresh' : header("Refresh:0;url=".site_url($uri)); break; default : header("location:".site_url($uri)); break; } exit; } // ------------------------------------------------------------------------ /** * Parse out the attributes * * Some of the functions use this * * @access private * @param array * @param bool * @return string */ function parse_url_attributes($attributes, $javascript = FALSE) { $att = ''; foreach ($attributes as $key => $val) { if ($javascript == TRUE) { $att .= $key . '=' . $val . ','; } else { $att .= ' ' . $key . '="' . $val . '"'; } } if ($javascript == TRUE) { $att = substr($att, 0, -1); } return $att; } ?>