note 39535 deleted from function.substr by aidan
| From: | aidan@php.net | Date: | Sun, 22 Aug 2004 11:19:21 +0000 |
| Subject: | note 39535 deleted from function.substr by aidan | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-75097@lists.php.net to get a copy of this message | ||
Note Submitter: windix at 263 dot net
----
Here is a function to handle UTF-8 strings, for someone who can't use mb_substr like me.
<?php
/*
UTF-8 version of substr(), for people who can't use mb_substr() like me.
Length is not the count of Bytes, but the count of UTF-8 Characters
Author: Windix Feng
Bug report to: windix(AT)263.net, http://www.douzi.org/blog
- History -
1.0 2004-02-01 Initial Version
2.0 2004-02-01 Use PREG instead of STRCMP and cycles, SPEED UP!
*/
function utf8_substr($str,$start)
{
preg_match_all(
"/[\x01-\x7f]|
[\xc2-\xdf][\x80-\xbf]|
\xe0[\xa0-\xbf][\x80-\xbf]|
[\xe1-\xef][\x80-\xbf][\x80-\xbf]|
\xf0[\x90-\xbf][\x80-\xbf][\x80-\xbf]|
[\xf1-\xf7][\x80-\xbf][\x80-\xbf][\x80-\xbf]/", $str, $ar);
if(func_num_args() >= 3) {
$end = func_get_arg(2);
return join("",array_slice($ar[0],$start,$end));
} else {
return join("",array_slice($ar[0],$start));
}
}
?>