* * @param string $string input string * @param integer $length length of truncated text * @param string $etc end string * @param boolean $break_words truncate at word boundary * @param boolean $middle truncate in the middle of text * * @return string truncated string */ function smarty_modifier_truncate($string, $length = 80, $etc = '...', $break_words = false, $middle = false) { if ($length === 0) { return ''; } if (Smarty::$_MBSTRING) { if (mb_strlen($string, Smarty::$_CHARSET) > $length) { $length -= min($length, mb_strlen($etc, Smarty::$_CHARSET)); if (!$break_words && !$middle) { $string = preg_replace( '/\s+?(\S+)?$/' . Smarty::$_UTF8_MODIFIER, '', mb_substr($string, 0, $length + 1, Smarty::$_CHARSET) ); } if (!$middle) { return mb_substr($string, 0, $length, Smarty::$_CHARSET) . $etc; } return mb_substr($string, 0, intval($length / 2), Smarty::$_CHARSET) . $etc . mb_substr($string, -intval($length / 2), $length, Smarty::$_CHARSET); } return $string; } // no MBString fallback if (isset($string[ $length ])) { $length -= min($length, strlen($etc)); if (!$break_words && !$middle) { $string = preg_replace('/\s+?(\S+)?$/', '', substr($string, 0, $length + 1)); } if (!$middle) { return substr($string, 0, $length) . $etc; } return substr($string, 0, intval($length / 2)) . $etc . substr($string, -intval($length / 2)); } return $string; }