本文实例讲述了smarty中改进truncate使其支持中文的方法。分享给大家供大家参考,具体如下:
smarty的truncate不支持中文的截取。将smarty目录下plugins中的modifier.truncate.php改成下面这个样子就可以了
<?php /* * Smarty plugin * ------------------------------------------------------------- * Type: modifier * Name: truncate * Purpose: Truncate a string to a certain length if necessary, * optionally splitting in the middle of a word, and * appending the $etc string. * Update: change substr to msubstr and add fun msubstr.so it * can bu used in chinese charset. * ------------------------------------------------------------- */ function smarty_modifier_truncate($string, $length = 80, $etc = '...', $break_words = false) { if ($length == 0) return ''; if (strlen($string) > $length) { $length -= strlen($etc); if (!$break_words) $string = preg_replace('//s+?(/S+)?$/', '', SubstrGB($string, 0, $length+1)); return SubstrGB($string, 0, $length).$etc; } else return $string; } function SubstrGB($str,$start,$len){ for($i=0;$i<$start+$len;$i++){ $tmpstr=(ord($str[$i])>=161 && ord($str[$i])<=254&& ord($str[$i+1])>=161 && ord($str[$i+1])<=254)?$str[$i].$str[++$i]:$tmpstr=$str[$i]; if ($i>=$start&&$i<($start+$len))$tmp .=$tmpstr; } return $tmp; } /* vim: set expandtab: */ ?>
希望本文所述对大家基于smarty模板的PHP程序设计有所帮助。