Yii Framework中截取字符串(UTF-8)的源码

来源：互联网发布：java如何调用存储过程编辑：程序博客网时间：2024/05/23 21:14

Helper.php

class Helper{public static function truncate_utf8_string($string, $length, $etc = '...'){    $result = '';    $string = html_entity_decode(trim(strip_tags($string)), ENT_QUOTES, 'UTF-8');    $strlen = strlen($string);    for ($i = 0; (($i < $strlen) && ($length > 0)); $i++){        if ($number = strpos(str_pad(decbin(ord(substr($string, $i, 1))), 8, '0', STR_PAD_LEFT), '0')){            if ($length < 1.0){                break;            }            $result .= substr($string, $i, $number);            $length -= 1.0;            $i += $number - 1;        }else{            $result .= substr($string, $i, 1);            $length -= 0.5;        }    }    $result = htmlspecialchars($result, ENT_QUOTES, 'UTF-8');    if ($i < $strlen){        $result .= $etc;    }    return $result;}}

将Helper.php放进protected\components文件夹下。

使用方法：

Helper::truncate_utf8_string($content,20,false); //不显示省略号Helper::truncate_utf8_string($content,20); //显示省略号

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