Php intercepts a Chinese string function instance. _ PHP Tutorial

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...