Online PHP editor | output for RBdKo

@ 2013-03-31T16:51:54Z

<?php

function msubstr($str, $start=0, $length, $charset="utf-8", $suffix=true)
{
if($suffix)
   $suffixStr = "…";
else
   $suffixStr = "";

    if(function_exists("mb_substr"))
        return mb_substr($str, $start, $length, $charset).$suffixStr;
    elseif(function_exists('iconv_substr')) {
        return iconv_substr($str,$start,$length,$charset).$suffixStr;
    }
    $re['utf-8']   = "/[\x01-\x7f]|[\xc2-\xdf][\x80-\xbf]|[\xe0-\xef][\x80-\xbf]{2}|[\xf0-\xff][\x80-\xbf]{3}/";
    $re['gb2312'] = "/[\x01-\x7f]|[\xb0-\xf7][\xa0-\xfe]/";
    $re['gbk']    = "/[\x01-\x7f]|[\x81-\xfe][\x40-\xfe]/";
    $re['big5']   = "/[\x01-\x7f]|[\x81-\xfe]([\x40-\x7e]|\xa1-\xfe])/";
    preg_match_all($re[$charset], $str, $match);
    $slice = join("",array_slice($match[0], $start, $length));
    return $slice.$suffixStr;
}

function csubstr($str, $start=0, $length, $charset="utf-8", $suffix=true) 
{ 
if(function_exists("mb_substr")) 
return mb_substr($str, $start, $length, $charset); 
$re['utf-8'] = "/[\x01-\x7f]|[\xc2-\xdf][\x80-\xbf]|[\xe0-\xef][\x80-\xbf]{2}|[\xf0-\xff][\x80-\xbf]{3}/"; 
$re['gb2312'] = "/[\x01-\x7f]|[\xb0-\xf7][\xa0-\xfe]/"; 
$re['gbk'] = "/[\x01-\x7f]|[\x81-\xfe][\x40-\xfe]/"; 
$re['big5'] = "/[\x01-\x7f]|[\x81-\xfe]([\x40-\x7e]|\xa1-\xfe])/"; 
preg_match_all($re[$charset], $str, $match); 
$slice = join("",array_slice($match[0], $start, $length)); 
if($suffix) return $slice."…"; 
return $slice; 
} 

$a = '测试这是一个测试';
//$a = 'xxxxbbbbbnnn';

$b = csubstr($a,0,5,10);
var_dump($b);

?>

Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: Deprecated: Optional parameter $start declared before required parameter $length is implicitly treated as a required parameter in /in/RBdKo on line 3 Deprecated: Optional parameter $start declared before required parameter $length is implicitly treated as a required parameter in /in/RBdKo on line 24 Fatal error: Uncaught ValueError: mb_substr(): Argument #4 ($encoding) must be a valid encoding, "10" given in /in/RBdKo:27 Stack trace: #0 /in/RBdKo(27): mb_substr('\xE6\xB5\x8B\xE8\xAF\x95\xE8\xBF\x99\xE6\x98\xAF\xE4\xB8\x80...', 0, 5, '10') #1 /in/RBdKo(41): csubstr('\xE6\xB5\x8B\xE8\xAF\x95\xE8\xBF\x99\xE6\x98\xAF\xE4\xB8\x80...', 0, 5, 10) #2 {main} thrown in /in/RBdKo on line 27
Process exited with code 255.
Output for 8.0.0 - 8.0.30: Deprecated: Required parameter $length follows optional parameter $start in /in/RBdKo on line 3 Deprecated: Required parameter $length follows optional parameter $start in /in/RBdKo on line 24 Fatal error: Uncaught ValueError: mb_substr(): Argument #4 ($encoding) must be a valid encoding, "10" given in /in/RBdKo:27 Stack trace: #0 /in/RBdKo(27): mb_substr('\xE6\xB5\x8B\xE8\xAF\x95\xE8\xBF\x99\xE6\x98\xAF\xE4\xB8\x80...', 0, 5, '10') #1 /in/RBdKo(41): csubstr('\xE6\xB5\x8B\xE8\xAF\x95\xE8\xBF\x99\xE6\x98\xAF\xE4\xB8\x80...', 0, 5, 10) #2 {main} thrown in /in/RBdKo on line 27
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33: Warning: mb_substr(): Unknown encoding "10" in /in/RBdKo on line 27 bool(false)
Output for 4.3.0 - 4.3.1: Warning: mb_substr() [http://www.php.net/function.mb-substr]: Unknown encoding "10" in /in/RBdKo on line 27 bool(false)

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