minify html

html.php

<?php

class HTML {

  /**
	 * Remove comments and whitespace
	 */
	public static function minify($content)
	{
		$content = static::strip_comments($content);
		return static::strip_whitespace($content);
	}

	public static function strip_whitespace($content)
	{
		$search = array(
			'/\>[^\S ]+/s', // strip whitespaces after tags, except space
			'/[^\S ]+\</s', // strip whitespaces before tags, except space
			'/(\s)+/s'      // shorten multiple whitespace sequences
		);

		$replace = array(
			'>',
			'<',
			'\\1'
		);

		return preg_replace($search, $replace, $content);
	}

	public static function strip_comments($content)
	{
		return preg_replace("/<!--[^>]*-->/", '', $content);
	}

}