用PHP和ACCESS写聊天室(十)

  作者:bea

func.php3 代码如下: <?php 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
func.php3

代码如下:

<?php

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,"<TABLE")) $bNeed="True";

        if ($bNeed!="True" || !strstr($sOther,"</TABLE")) $bNeed="True";

        if ($bNeed!="True" || !strstr($sOther,"<SCRIPT")) $bNeed="True";

        if ($bNeed!="True" || !strstr($sOther,"</SCRIPT")) $bNeed="True";

        if ($bNeed!="True" || !strstr($sOther,"<BODY")) $bNeed="True";

        if ($bNeed!="True" || !strstr($sOther,"</BODY")) $bNeed="True";

        if ($bNeed!="True" || !strstr($sOther,"<HTML")) $bNeed="True";

        if ($bNeed!="True" || !strstr($sOther,"</HTML")) $bNeed="True";

        if ($bNeed!="True" || !strstr($sOther,"<HEAD")) $bNeed="True";

        if ($bNeed!="True" || !strstr($sOther,"</HEAD")) $bNeed="True";

        if ($bNeed!="True" || !strstr($sOther,"<FORM")) $bNeed="True";

        if ($bNeed!="True" || !strstr($sOther,"</FORM")) $bNeed="True";

        if ($bNeed!="True" || !strstr($sOther,"<INPUT")) $bNeed="True";

        if ($bNeed!="True" || !strstr($sOther,"</INPUT")) $bNeed="True";

        if ($bNeed!="True" || !strstr($sOther,"<OPTION")) $bNeed="True";

        if ($bNeed!="True" || !strstr($sOther,"</OPTION")) $bNeed="True";

        if ($bNeed!="True" || !strstr($sOther,"<SELECT")) $bNeed="True";

        if ($bNeed!="True" || !strstr($sOther,"</SELECT")) $bNeed="True";

        if ($bNeed!="True" || !strstr($sOther,"<APPLET")) $bNeed="True";

        if ($bNeed!="True" || !strstr($sOther,"</APPLET")) $bNeed="True";

        if ($bNeed!="True" || !strstr($sOther,"<OBJECT")) $bNeed="True";

        if ($bNeed!="True" || !strstr($sOther,"</OBJECT")) $bNeed="True";

        if ($bNeed!="True" || !strstr($sOther,"<MENU")) $bNeed="True";

        if ($bNeed!="True" || !strstr($sOther,"</MENU")) $bNeed="True";

        if ($bNeed!="True" || !strstr($sOther,"<FRAMESET")) $bNeed="True";

        if ($bNeed!="True" || !strstr($sOther,"</FRAMESET")) $bNeed="True";

        if ($bNeed!="True" || !strstr($sOther,"<FRAME")) $bNeed="True";

        if ($bNeed!="True" || !strstr($sOther,"</FRAME")) $bNeed="True";

        if ($bNeed!="True" || !strstr($sOther,"<IFRAME")) $bNeed="True";

        if ($bNeed!="True" || !strstr($sOther,"</IFRAME")) $bNeed="True";

        if ($bNeed!="True" || !strstr($sOther,"<STYLE")) $bNeed="True";

        if ($bNeed!="True" || !strstr($sOther,"</STYLE")) $bNeed="True";

        if ($bNeed!="True" || !strstr($sOther,"<BASE")) $bNeed="True";

        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), ">")));

        $ret.=StrDupl("</FONT>", (StrOccurs(strtoupper($ret), "<FONT") - StrOccurs(strtoupper($ret), "</FONT>")));

        $ret.=StrDupl("</B>", (StrOccurs(strtoupper($ret), "<B") - StrOccurs(strtoupper($ret), "</B>")));

        $ret.=StrDupl("</I>", (StrOccurs(strtoupper($ret), "<I") - StrOccurs(strtoupper($ret), "</I>")));

        $ret.=StrDupl("</U>", (StrOccurs(strtoupper($ret), "<U") - StrOccurs(strtoupper($ret), "</U>")));

        $ret.=StrDupl("</S>", (StrOccurs(strtoupper($ret), "<S") - StrOccurs(strtoupper($ret), "</S>")));

        $ret.=StrDupl("</STRIKE>", (StrOccurs(strtoupper($ret), "<STRIKE") - StrOccurs(strtoupper($ret), "</STRIKE>")));

        $ret.=StrDupl("</STRONG>", (StrOccurs(strtoupper($ret), "<STRONG") - StrOccurs(strtoupper($ret), "</STRONG>")));

        $ret.=StrDupl("</SMALL>", (StrOccurs(strtoupper($ret), "<SMALL") - StrOccurs(strtoupper($ret), "</SMALL>")));

        $ret.=StrDupl("</CITE>", (StrOccurs(strtoupper($ret), "<CITE") - StrOccurs(strtoupper($ret), "</CITE>")));

        $ret.=StrDupl("</EM>", (StrOccurs(strtoupper($ret), "<EM") - StrOccurs(strtoupper($ret), "</EM>")));

        $ret.=StrDupl("</CODE>", (StrOccurs(strtoupper($ret), "<CODE") - StrOccurs(strtoupper($ret), "</CODE>")));

        $ret.=StrDupl("</SAMP>", (StrOccurs(strtoupper($ret), "<SAMP") - StrOccurs(strtoupper($ret), "</SAMP>")));

        $ret.=StrDupl("</KBD>", (StrOccurs(strtoupper($ret), "<KBD") - StrOccurs(strtoupper($ret), "</KBD>")));

        $ret.=StrDupl("</VAR>", (StrOccurs(strtoupper($ret), "<VAR") - StrOccurs(strtoupper($ret), "</VAR>")));

        $ret.=StrDupl("</DFN>", (StrOccurs(strtoupper($ret), "<DFN") - StrOccurs(strtoupper($ret), "</DFN>")));

        $ret.=StrDupl("</BIG>", (StrOccurs(strtoupper($ret), "<BIG") - StrOccurs(strtoupper($ret), "</BIG>")));

        $ret.=StrDupl("</SUP>", (StrOccurs(strtoupper($ret), "<SUP") - StrOccurs(strtoupper($ret), "</SUP>")));

        $ret.=StrDupl("</SUB>", (StrOccurs(strtoupper($ret), "<SUB") - StrOccurs(strtoupper($ret), "</SUB>")));

        $ret.=StrDupl("</H1>", (StrOccurs(strtoupper($ret), "<H1") - StrOccurs(strtoupper($ret), "</H1>")));

        $ret.=StrDupl("</H2>", (StrOccurs(strtoupper($ret), "<H2") - StrOccurs(strtoupper($ret), "</H2>")));

        $ret.=StrDupl("</H3>", (StrOccurs(strtoupper($ret), "<H3") - StrOccurs(strtoupper($ret), "</H3>")));

        $ret.=StrDupl("</H4>", (StrOccurs(strtoupper($ret), "<H4") - StrOccurs(strtoupper($ret), "</H4>")));

        $ret.=StrDupl("</H5>", (StrOccurs(strtoupper($ret), "<H5") - StrOccurs(strtoupper($ret), "</H5>")));

        $ret.=StrDupl("</H6>", (StrOccurs(strtoupper($ret), "<H6") - StrOccurs(strtoupper($ret), "</H6>")));

        $ret.=StrDupl("</H7>", (StrOccurs(strtoupper($ret), "<H7") - StrOccurs(strtoupper($ret), "</H7>")));

        return $ret;

}

?>





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