Writing a chat room using PHP and ACCESS (10)_PHP tutorial

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;$i<=$iCnt;$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,"        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"        if ($bNeed!="True" || !strstr($sOther,"FONT-SIZE:")) $bNeed="True";
        if ($bNeed=="True")
                return str_replace(">",">",str_replace("<","<",$sStr));
        else
                return $sStr;
}

function AddLost($sStr){
        $ret=$sStr;
        $ret.=StrDupl(">", (StrOccurs(strtoupper($ret), "<") - StrOccurs(strtoupper($ret), ">")));
        $ret.=StrDupl("", (StrOccurs(strtoupper($ret), "")));
        $ret.=StrDupl("", (StrOccurs(strtoupper($ret), "")));
        $ret.=StrDupl("", (StrOccurs(strtoupper($ret), "")));
        $ret.=StrDupl("", (StrOccurs(strtoupper($ret), "")));
        $ret.=StrDupl("", (StrOccurs(strtoupper($ret), "")));
        $ret.=StrDupl("", (StrOccurs(strtoupper($ret), "")));
        $ret.=StrDupl("", (StrOccurs(strtoupper($ret), "")));
        $ret.=StrDupl("", (StrOccurs(strtoupper($ret), "")));
        $ret.=StrDupl("", (StrOccurs(strtoupper($ret), "")));
        $ret.=StrDupl("", (StrOccurs(strtoupper($ret), "")));
        $ret.=StrDupl("", (StrOccurs(strtoupper($ret), "")));
        $ret.=StrDupl("", (StrOccurs(strtoupper($ret), "")));
        $ret.=StrDupl("", (StrOccurs(strtoupper($ret), "")));
        $ret.=StrDupl("", (StrOccurs(strtoupper($ret), "")));
        $ret.=StrDupl("", (StrOccurs(strtoupper($ret), "")));
        $ret.=StrDupl("", (StrOccurs(strtoupper($ret), "")));
        $ret.=StrDupl("", (StrOccurs(strtoupper($ret), "")));
        $ret.=StrDupl("", (StrOccurs(strtoupper($ret), "")));
        $ret.=StrDupl("", (StrOccurs(strtoupper($ret), "")));
        $ret.=StrDupl("", (StrOccurs(strtoupper($ret), "")));
        $ret.=StrDupl("", (StrOccurs(strtoupper($ret), "")));
$ret.=StrDupl("", (StrOccurs(strtoupper($ret), "")));
        $ret.=StrDupl("", (StrOccurs(strtoupper($ret), ""))) ;
         $ret.=StrDupl("", (StrOccurs(strtoupper($ret), "") )); ")));
         return $ret;
}
?>


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http://www.bkjia.com/PHPjc/316531.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/316531.htmlTechArticlefunc.php3 The code is as follows: ?php function suiji($max) { srand((double)microtime()* 1000000); $x=rand(); $y=getrandmax(); $r=$x/$y*($max-1); $r=round($r++); return $r; } function StrOcc. ..