Elkarte Censor as a class

Censor.php

<?php

/**
 * $censor = new Censor($modSettings['censor_vulgar'], $modSettings['censor_proper'], $modSettings);
 * $censor->censor($message['body']);
 */

class Censor
{
	const WHOLE_WORD        = 'censorWholeWord';
	const IGNORE_CASE       = 'censorIgnoreCase';
	const SHOW_NO_CENSORED  = 'show_no_censored';
	const ALLOW_NO_CENSORED = 'allow_no_censored';
	
	protected $vulgar = array();
	protected $proper = array();
	protected $options = array(
		self::WHOLE_WORD        => false,
		self::IGNORE_CASE       => false,
		self::SHOW_NO_CENSORED  => false,
		self::ALLOW_NO_CENSORED => false,
	);
	
	public funciton __construct(array $vulgar, array $proper, array $options = array())
	{
		if (count($vulgar) !== count($proper))
		{
			throw new \InvalidArgumentException('Censored vulgar and proper arrays must be equal sizes');
		}
		
		$this->setOptions($options);
		$this->setVulgarProper($vulgar, $proper);
	}
	
	protected function setOptions(array $options)
	{
		$this->options = array_merge($this->options, $options);
	}
	
	protected function setVulgarProper(array $vulgar, array $proper)
	{
		// Quote them for use in regular expressions.
		if ($this->options[self::WHOLE_WORD])
		{
			for ($i = 0, $n = count($vulgar); $i < $n; $i++)
			{
				$vulgar[$i] = str_replace(array('\\\\\\*', '\\*', '&', '\''), array('[*]', '[^\s]*?', '&amp;', '&#039;'), preg_quote($vulgar[$i], '/'));
				$vulgar[$i] = '/(?<=^|\W)' . $vulgar[$i] . '(?=$|\W)/u' . (!$this->options[self::IGNORE_CASE] ? '' : 'i');

				// @todo I'm thinking the old way is some kind of bug and this is actually fixing it.
				//if (strpos($vulgar[$i], '\'') !== false)
					//$vulgar[$i] = str_replace('\'', '&#039;', $vulgar[$i]);
			}
		}
		
		$this->vulgar = $vulgar;
		$this->proper = $proper;
	}
	
	public function censor(&$text, $force = false)
	{
		if (!$this->options[self::WHOLE_WORD])
		{
			$text = !$this->options[self::IGNORE_CASE]] ? str_replace($this->vulgar, $this->proper, $text) : str_ireplace($this->vulgar, $this->proper, $text);
		}
		else
		{
			$text = preg_replace($this->vulgar, $this->proper, $text);
		}

		return $text;
	}
}