下面写了两个php 字符串截取函数,方法很简单,string要截取的字符串,sublen长度,$start开位置,代码如下:
- function my_sub_str($string, $sublen, $start)
- {
- $pa = "/fdddd";
- preg_match_all($pa, $string, $t_string);
- if(count($t_string[0]) - $start > $sublen) return join('', array_slice($t_string[0], $start, $sublen))."...";
- return join('', array_slice($t_string[0], $start, $sublen));
- }
-
-
-
- function my_sub_str_00($string, $sublen, $start)
- {
- $pa = "/sss/";
- preg_match_all($pa, $string, $t_string);
- return join('', array_slice($t_string[0], $start, $sublen));
- }
-
- $string ="www.phpfensi.com中国web第一站";
- echo my_sub_str($string, 10, 0);
|