modifier.truncate.php (2148B)
1 <?php 2 /** 3 * Smarty plugin 4 * 5 * @package Smarty 6 * @subpackage PluginsModifier 7 */ 8 9 /** 10 * Smarty truncate modifier plugin 11 * Type: modifier<br> 12 * Name: truncate<br> 13 * Purpose: Truncate a string to a certain length if necessary, 14 * optionally splitting in the middle of a word, and 15 * appending the $etc string or inserting $etc into the middle. 16 * 17 * @link http://smarty.php.net/manual/en/language.modifier.truncate.php truncate (Smarty online manual) 18 * @author Monte Ohrt <monte at ohrt dot com> 19 * 20 * @param string $string input string 21 * @param integer $length length of truncated text 22 * @param string $etc end string 23 * @param boolean $break_words truncate at word boundary 24 * @param boolean $middle truncate in the middle of text 25 * 26 * @return string truncated string 27 */ 28 function smarty_modifier_truncate($string, $length = 80, $etc = '...', $break_words = false, $middle = false) 29 { 30 if ($length == 0) { 31 return ''; 32 } 33 34 if (Smarty::$_MBSTRING) { 35 if (mb_strlen($string, Smarty::$_CHARSET) > $length) { 36 $length -= min($length, mb_strlen($etc, Smarty::$_CHARSET)); 37 if (!$break_words && !$middle) { 38 $string = preg_replace('/\s+?(\S+)?$/' . Smarty::$_UTF8_MODIFIER, '', mb_substr($string, 0, $length + 1, Smarty::$_CHARSET)); 39 } 40 if (!$middle) { 41 return mb_substr($string, 0, $length, Smarty::$_CHARSET) . $etc; 42 } 43 44 return mb_substr($string, 0, $length / 2, Smarty::$_CHARSET) . $etc . mb_substr($string, - $length / 2, $length, Smarty::$_CHARSET); 45 } 46 47 return $string; 48 } 49 50 // no MBString fallback 51 if (isset($string[$length])) { 52 $length -= min($length, strlen($etc)); 53 if (!$break_words && !$middle) { 54 $string = preg_replace('/\s+?(\S+)?$/', '', substr($string, 0, $length + 1)); 55 } 56 if (!$middle) { 57 return substr($string, 0, $length) . $etc; 58 } 59 60 return substr($string, 0, $length / 2) . $etc . substr($string, - $length / 2); 61 } 62 63 return $string; 64 }