用PHP和ACCESS写聊天室(十)

func.php3
代码如下：
function suiji($max)
{
        srand((double)microtime()*1000000);
        $x=rand();
        $y=getrandmax();
        $r=$x/$y*($max-1);
        $r=round($r++);
        return $r;
}

function StrOccurs($sStr, $sFind){
        $sTemp=$sStr;
        $iLen=strlen($sFind);
        $iCount=0;
        while (true){
                if (strstr($sTemp, $sFind))
                        break;
                else
                        $sTemp = instr($sTemp,strpos($sTemp,$sFind)+$iLen);
                        $iCount++;
                }
        }
        return $iCount;
}

function StrDupl($sStr, $iCnt){
        $ret="";
        for($i=1;$i                $ret.=$sStr;
        return $ret;
}

function DelQuot($sStr){
        $s=str_replace(chr(124),"¦",$sStr);
        $s=str_replace(chr(39),"´",$s);
        $s=str_replace(chr(34),""",$s);
        return s;
}

function DelTag($sStr){
        $bNeed="False";
        $sOther=strtoupper($sStr);
        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"")) $bNeed="True";
        if ($bNeed!="True" || !strstr($sOther,"<script></script>        if ($bNeed!="True" || !strstr($sOther,"")) $bNeed="True";
        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"")) $bNeed="True";
        if ($bNeed!="True" || !strstr($sOther,"