Php intercepts a Chinese string function instance. _ PHP Tutorial

Source: Internet
Author: User
Php intercepts a Chinese string function instance ,. Php intercepts a Chinese string function. this example describes how php intercepts a Chinese string function. Share it with you for your reference. The specific implementation method is as follows: Copy the code as follows: php intercepts a Chinese string function instance,

This example describes how to use php to intercept Chinese strings. Share it with you for your reference. The specific implementation method is as follows:

The code is as follows:

<? Php
// Chinese string truncation
Function substr_zh ($ string, $ sublen, $ start = 0, $ code = 'utf-8 '){
If ($ code = 'utf-8 '){
$ Pa = "/[\ 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]/ ";
Preg_match_all ($ pa, $ string, $ t_string );
If (count ($ t_string [0])-$ start> $ sublen ){
Return join ('', array_slice ($ t_string [0], $ start, $ sublen ))."...";
// Array_slice () retrieves a value in the array based on the conditions. The parameter (array, start position, [length])
} Else {
Return join ('', array_slice ($ t_string [0], $ start, $ sublen ));
}
} Else {
$ Start = $ start * 2;
$ Sublen = $ sublen * 2;
$ Strlen = strlen ($ string );
$ Tmpstr = '';
For ($ I = 0; $ I <$ strlen; $ I ++ ){
If ($ I> $ start & $ I <($ start + $ sublen )){
If (ord (substr ($ string, $ I, 1) & gt; 129 ){
// Ord (): returns the ASCII value of the first character of the string.
// Substr (): returns part of the string.
$ Tmpstr. = substr ($ string, $ I, 2 );
} Else {
$ Tmpstr. = substr ($ string, $ I, 1 );
}
}
If (ord (substr ($ string, $ I, 1) & gt; 129 ){
$ I ++;
}
If (strlen ($ tmpstr) <$ strlen ){
$ Tmpstr. = "...";
}
}
Return $ tmpstr;
}
}
$ String = "standing on the roof of a car, getting stuck, staring at the rescue team, and trying to be sleepy, right foot, cute ";
Echo substr_zh ($ string, 10, 0, 'gb2312 ');
?>

I hope this article will help you with php programming.

The example in this article describes how php intercepts a Chinese string function. Share it with you for your reference. The specific implementation method is as follows: the code is as follows...

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.