php對表單內容進行處理

/**
	 * 過濾HTML內容後返回
	 *
	 * @param      $string
	 * @param bool $html
	 *
	 * @return array|string
	 */
	public static function safeOutput($string, $html = false) {
		if (!$html)
			$string = strip_tags($string);

		return @Tools::htmlentitiesUTF8($string, ENT_QUOTES);
	}

	public static function htmlentitiesUTF8($string, $type = ENT_QUOTES) {
		if (is_array($string))
			return array_map(array('Tools', 'htmlentitiesUTF8'), $string);

		return htmlentities((string)$string, $type, 'utf-8');
	}

	public static function htmlentitiesDecodeUTF8($string) {
		if (is_array($string))
			return array_map(array('Tools', 'htmlentitiesDecodeUTF8'), $string);

		return html_entity_decode((string)$string, ENT_QUOTES, 'utf-8');
	}

	/**
	 * 對POST內容進行處理
	 *
	 * @return array
	 */
	public static function safePostVars() {
		if (!is_array($_POST))
			return array();
		$_POST = array_map(array('Tools', 'htmlentitiesUTF8'), $_POST);
	}

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