3v4l.org

run code in 300+ PHP versions simultaneously

@ 2013-03-31T15:55:14Z

<?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;
}

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

$b = msubstr($a,0,5);
var_dump($b);

?>

Output for git.master, git.master_jit, rfc.property-hooks: Deprecated: Optional parameter $start declared before required parameter $length is implicitly treated as a required parameter in /in/F1MYl on line 3 string(18) "测试这是一…"

This tab shows result from various feature-branches currently under review by the php developers. Contact me to have additional branches featured.

Active branches

Archived branches

Once feature-branches are merged or declined, they are no longer available. Their functionality (when merged) can be viewed from the main output page

2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

preferences:dark modelive preview

39.99 ms | 401 KiB | 8 Q