OUGC Count Characters Function

gistfile1.php

<?php

/***************************************************************************
 *
 *	OUGC Count Characters Function
 *	Author: Omar Gonzalez
 *	Copyright: © 2013-2014 Omar Gonzalez
 *
 *	Website: http://omarg.me
 *
 *	Counts a message's characters removing special code.
 *
 ***************************************************************************

****************************************************************************
	This program is free software: you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program.  If not, see <http://www.gnu.org/licenses/>.
****************************************************************************/

/**
 * Counts a message's characters removing special code.
 * Based off Zinga Burga's "Thread Tooltip Preview" plugin threadtooltip_getpreview() function.
 *
 * @param string Message to count.
 * @return integer Characters count
**/
function ougc_countchars($message)
{
	// Attempt to remove any quotes
	$message = preg_replace(array(
		'#\[quote=([\"\']|&quot;|)(.*?)(?:\\1)(.*?)(?:[\"\']|&quot;)?\](.*?)\[/quote\](\r\n?|\n?)#esi',
		'#\[quote\](.*?)\[\/quote\](\r\n?|\n?)#si',
		'#\[quote\]#si',
		'#\[\/quote\]#si'
	), '', $message);

	// Attempt to remove any MyCode
	global $parser;
	if(!is_object($parser))
	{
		require_once MYBB_ROOT.'inc/class_parser.php';
		$parser = new postParser;
	}

	$message = $parser->parse_message($message, array(
		'allow_html'		=>	0,
		'allow_mycode'		=>	1,
		'allow_smilies'		=>	0,
		'allow_imgcode'		=>	1,
		'filter_badwords'	=>	1,
		'nl2br'				=>	0
	));

	// before stripping tags, try converting some into spaces
	$message = preg_replace(array(
		'~\<(?:img|hr).*?/\>~si',
		'~\<li\>(.*?)\</li\>~si'
	), array(' ', "\n* $1"), $message);

	$message = unhtmlentities(strip_tags($message));

	// Remove all spaces?
	$message = trim_blank_chrs($message);
	$message = preg_replace('/\s+/', '', $message);

	// convert \xA0 to spaces (reverse &nbsp;)
	$message = trim(preg_replace(array('~ {2,}~', "~\n{2,}~"), array(' ', "\n"), strtr($message, array("\xA0" => ' ', "\r" => '', "\t" => ' '))));

	// newline fix for browsers which don't support them
	$message = preg_replace("~ ?\n ?~", " \n", $message);

	return (int)my_strlen($message);
}