Submithandler PHP chinese processing Chinese string intercept mb_substr and get Chinese string words

First, Chinese interception: Mb_substr ()
Mb_substr ($str, $start, $length, $encoding)
$str, the string that needs to be truncated
$start, starting at 0 at the beginning of the truncation
$length, the number of words to intercept
$encoding, page encoding, such as UTF-8,GB2312,GBK
Instance:

Copy the Code code as follows:

$STR = ' This station: Http://www.jb51.net ';
Echo mb_substr ($str, 0,4, ' utf-8 ');//intercept the first 5 words, assuming that the code is located in the PHP file encoded as Utf-8
?>
Results show: this site

Second, get Chinese length: Mb_strlen ()
Mb_strlen ($str, $encoding)
$str, the string to calculate the length of
$encoding, page encoding, such as UTF-8,GB2312,GBK
Instance:

Copy the Code code as follows:

$STR = ' This station: Http://www.jb51.net ';
Echo Mb_strlen ($str, ' utf-8 ');//Assuming that the code is in the PHP file encoded as Utf-8
?>
Results showed: 24

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