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BBCode Helper

Korri edited this page Jan 30, 2013 · 11 revisions

Category:Helper::Community | Category:Helper::Text

Use this helper to parse strings and turn BBCode style tags into basic HTML with settings available to offer protection from reprobate types who post enormous images.


<?php  if (!defined('BASEPATH')) exit('No direct script access allowed');

/**
* CodeIgniter BBCode Helpers
*
* @package  CodeIgniter
* @subpackage Helpers
* @category Helpers
* @author  Philip Sturgeon
* @changes  MpaK http://mrak7.com
* @link  http://codeigniter.com/wiki/BBCode_Helper/
*/

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

/**
* parse_bbcode
*
* Converts BBCode style tags into basic HTML
*
* @access public
* @param string unparsed string
* @param int max image width
* @return string
*/

function parse_bbcode($str = '', $max_images = 0){
// Max image size eh? Better shrink that pic!
if($max_images > 0):
   $str_max = "style=\"max-width:".$max_images."px; width: [removed]this.width > ".$max_images." ? ".$max_images.": true);\"";
endif;

$find = array(
  "'\[b\](.*?)\[/b\]'is",
  "'\[i\](.*?)\[/i\]'is",
  "'\[u\](.*?)\[/u\]'is",
  "'\[s\](.*?)\[/s\]'is",
  "'\[img\](.*?)\[/img\]'i",
  "'\[url\](.*?)\[/url\]'i",
  "'\[url=(.*?)\](.*?)\[/url\]'i",
  "'\[link\](.*?)\[/link\]'i",
  "'\[link=(.*?)\](.*?)\[/link\]'i"
);

$replace = array(
  '<strong>\\1</strong>',
  '<em>\\1</em>',
  '<u>\\1</u>',
  '<s>\\1</s>',
  '<img src="\\1" alt="" />',
  '<a href="\\1">\\1</a>',
  '<a href="\\1">\\2</a>',
  '<a href="\\1">\\1</a>',
  '<a href="\\1">\\2</a>'
);

return preg_replace($find, $replace, $str);

}

?>
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