How to intercept Chinese strings in PHP

Source: Internet
Author: User
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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