本文介绍了一个PHP脚本的功能，该脚本用于更新用户的签名并检查签名长度是否符合要求。通过使用mb_strlen函数，确保签名长度在1到50个字符之间。如果签名过长，则返回错误；若签名长度合适，则更新数据库。
sql_connect();
//$args[0]="sh我我sfssssw";
$args[0]="我我我我我我我我我我你ddd";
updateSignature(1003,$args);
function updateSignature($uid,$args)
{
$ret = array();
$sign = array_shift($args);
[b]echo strlen($sign);
echo "____";
echo mb_strlen($sign,"utf-8");[/b]
if(mb_strlen($sign,"utf-8")>50){
$ret[]=-1;
return $ret;
}else if(mb_strlen($sign,"utf-8")>0 && mb_strlen($sign,"utf-8")<=50){
$ret[]=1;
$ret[] = sql_query("update sys_user_monarch set `signature`='$sign' where `uid`=$uid");
return $ret;
}
}
//$args[0]="sh我我sfssssw";
$args[0]="我我我我我我我我我我你ddd";
updateSignature(1003,$args);
function updateSignature($uid,$args)
{
$ret = array();
$sign = array_shift($args);
[b]echo strlen($sign);
echo "____";
echo mb_strlen($sign,"utf-8");[/b]
if(mb_strlen($sign,"utf-8")>50){
$ret[]=-1;
return $ret;
}else if(mb_strlen($sign,"utf-8")>0 && mb_strlen($sign,"utf-8")<=50){
$ret[]=1;
$ret[] = sql_query("update sys_user_monarch set `signature`='$sign' where `uid`=$uid");
return $ret;
}
}
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