How to intercept Chinese strings in PHP

How to intercept Chinese strings in PHP?
It is well known that PHP native function substr does not support the interception of Chinese strings. The following code provides a variety of methods for intercepting PHP Chinese strings.

1. Intercept GB2312 Chinese string

 
  0xa0) {            $tmpstr. = substr ($str, $i, 2);            $i + +;        } else            $tmpstr. = substr ($str, $i, 1);    }    return $tmpstr;}? >

2. Interception of UTF8 encoded multibyte strings

3. Chinese character interception function supported by UTF-8 and GB2312

 $sublen) return join ("', Array_slice ($t _string[0], $start, $sublen))."        ...";    return join ("', Array_slice ($t _string[0], $start, $sublen));        } else {$start = $start * *;        $sublen = $sublen;        $strlen = strlen ($string);        $tmpstr = ";                for ($i =0; $i < $strlen; $i + +) {if ($i >= $start && $i < ($start + $sublen)) {                if (Ord (substr ($string, $i, 1)) >129) {$tmpstr. = substr ($string, $i, 2);                } else {$tmpstr. = substr ($string, $i, 1);        }} if (Ord (substr ($string, $i, 1)) >129) $i + +;        } if (strlen ($TMPSTR) < $strlen) $tmpstr. = "...";    return $tmpstr; }} $str = "ABCD string to intercept"; Echo cut_str ($str, 8, 0, ' gb2312 ');? >

4. Bugfree character intercept function

< php/** * @package Bugfree * @version $Id: functionsmain.inc.php,v 1.32 2005/09/24 11:38:37 wwccss EXP $ * *  * Return part of a string (Enhance the function substr ()) * * @author Chunsheng Wang
 
  
 * @param string $String the string to cut. * @param int $Length The Length of returned string. * @param booble $Append whether Append "...": False|true * @return string The cutted string.     */function syssubstr ($String, $Length, $Append = False) {if (strlen ($String) < = $Length) {return $String;        } else {$I = 0;            while ($I < $Length) {$StringTMP = substr ($String, $I, 1);                if (Ord ($StringTMP) >=224) {$StringTMP = substr ($String, $I, 3);            $I = $I + 3;                } elseif (Ord ($StringTMP) >=192) {$StringTMP = substr ($String, $I, 2);            $I = $I + 2;            } else {$I = $I + 1;        } $StringLast [] = $StringTMP;        } $StringLast = Implode ("", $StringLast);        if ($Append) {$StringLast. = "..."; } return $STRInglast; }} $String = "17test.info in the forefront of China's automated testing"; $Length = ""; $Append = False;echo syssubstr ($String, $Length, $Append);? >
 

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