php在字符断点处截断文字的代码一例

2. //所谓断字 (word break)，即一个单词可在转行时断开的地方。这一函数将在断字处截断字符串。
3. // Please acknowledge use of this code by including this header.
4. function myTruncate($string, $limit, $break=".", $pad="...") {
5. // return with no change if string is shorter than $limit
6. if(strlen($string) return $string;
7. // is $break present between $limit and the end of the string?
8. if(false !== ($breakpoint = strpos($string, $break, $limit))) {
9. if($breakpoint $string = substr($string, 0, $breakpoint) . $pad;
10. }
11. }
12. return $string;
13. }
14. /***** Example ****/
15. $short_string=myTruncate($long_string, 100, ' ');
16. ?>

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