safe_strftime

txplib_misc.php

// -------------------------------------------------------------
// Format a time, respecting the locale and local time zone,
// and make sure the output string is safe for UTF-8
	function safe_strftime($format, $time='', $gmt=0, $override_locale='')
	{
		global $locale;
		$old_locale = $locale;

		if (!$time)
			$time = time();

		# we could add some other formats here
		if ($format == 'iso8601' or $format == 'w3cdtf') {
			$format = '%Y-%m-%dT%H:%M:%SZ';
			$gmt = 1;
		}
		elseif ($format == 'rfc822') {
			$format = '%a, %d %b %Y %H:%M:%S GMT';
			$gmt = 1;
			$override_locale = 'en-gb';
		}

		if ($override_locale)
			getlocale($override_locale);

		if ($format == 'since')
			$str = since($time);
		elseif ($gmt)
			$str = gmstrftime($format, $time);
		else
			$str = strftime($format, $time + tz_offset($time));

		@list($lang, $charset) = explode('.', $locale);
		if (empty($charset))
			$charset = 'ISO-8859-1';
		//elseif (IS_WIN and is_numeric($charset))
		elseif ((IS_WIN and is_numeric($charset)) || in_array(intval($charset), array(1251 ,1252), true))
			// Score -1 for consistent naming conventions
			$charset = 'Windows-'.$charset;

		if ($charset != 'UTF-8' and $format != 'since') {
			$new = '';
			/*if (is_callable('iconv')) {
                $new = @iconv($charset, 'UTF-8', $str);
            }*/
            if(is_callable('mb_convert_encoding')) {
                ini_set('mbstring.substitute_character', "none");
                $new= mb_convert_encoding($str, 'UTF-8', $charset);
            }

			if ($new)
				$str = $new;
			elseif (is_callable('utf8_encode'))
				$str = utf8_encode($str);
		}

		# revert to the old locale
		if ($override_locale)
			$locale = setlocale(LC_ALL, $old_locale);

		return $str;
	}