修改如下文件中自定义的match函数，因为php8自带了一个match函数，功能不一样

/app/function/common.function.php
/app/function/helper.function.php
/app/sdks/lessc.class.php
/app/controller/app.class.php

match批量替换为其他名字，如我替换为了matching
修改/app/function/common.function.php中msubstr函数参数，为$length添加默认参数，因为php8规定了不带默认值的参数不能放在带默认值的参数后面。修改示例：

function msubstr($str, $start = 0, $length = 0, $charset = "utf-8", $suffix = true){
	if (function_exists("mb_substr")) {
		$i_str_len = mb_strlen($str);
		$s_sub_str = mb_substr($str, $start, $length, $charset);
		if ($length >= $i_str_len) {
			return $s_sub_str;
		} 
		return $s_sub_str . '...';
	} elseif (function_exists('iconv_substr')) {
		return iconv_substr($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;
}

之后有遇到问题再在回帖里面记录:blush: