搜索
首页php教程PHP源码php版 子网掩码计算器
php版 子网掩码计算器
PHP中文网
PHP中文网
May 25, 2016 pm 05:07 PM

php代码

<!--
PHP Subnet Calculator v1.3.
Copyright 06/25/2003 Raymond Ferguson ferguson_at_share-foo.com.
Released under GNU GPL.
Special thanks to krischan at jodies.cx for ipcalc.pl http://jodies.de/ipcalcThe presentation and concept was mostly taken from ipcalc.pl.
-->
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
		"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
  <title>PHP Subnet Calculator</title>
  <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
  <meta name="GENERATOR" content="Quanta Plus">
</head>
<body bgcolor="#D3D3D3">
<center>
<form method="post" action="<?php print $_SERVER[&#39;PHP_SELF&#39;] ?> ">
<BR><BR>
<table width="95%" align=center cellpadding=2 cellspacing=2 border=0>
  <tr><td align="center" bgcolor="#999999">
     <b><A HREF="http://sourceforge.net/projects/subntcalc/">PHP Subnet Calculator</A></b>
  </td></tr>
</table>
<BR>
<table>
  <tr>
        <td>IP &amp; Mask or CIDR:   </td>
        <td><input type="text" name="my_net_info" value="" size="31" maxlength="32"></td>
        <td>    <input type="submit" value="Calculate" name="subnetcalc">
                         
             </td>
  </tr>
</table></form><br>

<?php
//Start table
print "<table cellpadding=\"2\">\n<COL span=\"4\" align=\"left\">\n" ;

$end=&#39;</table><br><br><br><br><br><table width="95%" align=center cellpadding=2 cellspacing=2 border=0>
      <tr><td bgcolor="#999999"></td><tr><td align="center"><a href="http://validator.w3.org/check/referer">
      <img border="0" src="http://www.w3.org/Icons/valid-html401" alt="Valid HTML 4.01!" height="31" width="88"></a>
      </td></tr></table></center></body></html>&#39;;

if (empty($_POST[&#39;my_net_info&#39;])){
	tr(&#39;Use IP & CIDR Netmask: &#39;, &#39;10.0.0.1/22&#39;);
	tr(&#39;Or IP & Netmask:&#39;,&#39;10.0.0.1 255.255.252.0&#39;);
	tr(&#39;Or IP & Wildcard Mask:&#39;,&#39;10.0.0.1 0.0.3.255&#39;);
	print $end ;
	exit ;
}

$my_net_info=rtrim($_POST[&#39;my_net_info&#39;]);


//if (! ereg(&#39;^([0-9]{1,3}\.){3}[0-9]{1,3}(( ([0-9]{1,3}\.){3}[0-9]{1,3})|(/[0-9]{1,2}))$&#39;,$my_net_info)){
if (! preg_match("/^([0-9]{1,3}\.){3}[0-9]{1,3}(( ([0-9]{1,3}\.){3}[0-9]{1,3})|(\/[0-9]{1,2}))$/",$my_net_info)){
	tr("Invalid Input.");
	tr(&#39;Use IP & CIDR Netmask: &#39;, &#39;10.0.0.1/22&#39;);
	tr(&#39;Or IP & Netmask:&#39;,&#39;10.0.0.1 255.255.252.0&#39;);
	tr(&#39;Or IP & Wildcard Mask:&#39;,&#39;10.0.0.1 0.0.3.255&#39;);
	print $end ;
	exit ;
}

//if (ereg("/",$my_net_info)){  //if cidr type mask
if (preg_match("/\//",$my_net_info)){  //if cidr type mask
	$dq_host = strtok("$my_net_info", "/");
	$cdr_nmask = strtok("/");
	if (!($cdr_nmask >= 0 && $cdr_nmask <= 32)){
		tr("Invalid CIDR value. Try an integer 0 - 32.");
		print "$end";
		exit ;
	}
	$bin_nmask=cdrtobin($cdr_nmask);
	$bin_wmask=binnmtowm($bin_nmask);
} else { //Dotted quad mask?
    $dqs=explode(" ", $my_net_info);
	$dq_host=$dqs[0];
	$bin_nmask=dqtobin($dqs[1]);
	$bin_wmask=binnmtowm($bin_nmask);
	//if (ereg("0",rtrim($bin_nmask, "0"))) {  //Wildcard mask then? hmm?
	if (preg_match("/0/",rtrim($bin_nmask, "0"))) {  //Wildcard mask then? hmm?
		$bin_wmask=dqtobin($dqs[1]);
		$bin_nmask=binwmtonm($bin_wmask);
		if (ereg("0",rtrim($bin_nmask, "0"))){ //If it&#39;s not wcard, whussup?
			tr("Invalid Netmask.");
			print "$end";
			exit ;
		}
	}
	$cdr_nmask=bintocdr($bin_nmask);
}

//Check for valid $dq_host
//if(! ereg(&#39;^0.&#39;,$dq_host)){
if(! preg_match("/^0\./",$dq_host)){
	foreach( explode(".",$dq_host) as $octet ){
 		if($octet > 255){ 
			tr("Invalid IP Address");
			print $end ;
			exit;
		}
	
	}
}

$bin_host=dqtobin($dq_host);
$bin_bcast=(str_pad(substr($bin_host,0,$cdr_nmask),32,1));
$bin_net=(str_pad(substr($bin_host,0,$cdr_nmask),32,0));
$bin_first=(str_pad(substr($bin_net,0,31),32,1));
$bin_last=(str_pad(substr($bin_bcast,0,31),32,0));
$host_total=(bindec(str_pad("",(32-$cdr_nmask),1)) - 1);

if ($host_total <= 0){  //Takes care of 31 and 32 bit masks.
	$bin_first="N/A" ; $bin_last="N/A" ; $host_total="N/A";
	if ($bin_net === $bin_bcast) $bin_bcast="N/A";
}

//Determine Class
//if (ereg(&#39;^0&#39;,$bin_net)){
if (preg_match("/^0/",$bin_net)){
	$class="A";
	$dotbin_net= "<font color=\"Green\">0</font>" . substr(dotbin($bin_net,$cdr_nmask),1) ;
//}elseif (ereg(&#39;^10&#39;,$bin_net)){
}elseif (preg_match("/^10/",$bin_net)){
	$class="B";
	$dotbin_net= "<font color=\"Green\">10</font>" . substr(dotbin($bin_net,$cdr_nmask),2) ;
//}elseif (ereg(&#39;^110&#39;,$bin_net)){
}elseif (preg_match("/^110/",$bin_net)){
  	$class="C";
	$dotbin_net= "<font color=\"Green\">110</font>" . substr(dotbin($bin_net,$cdr_nmask),3) ;
//}elseif (ereg(&#39;^1110&#39;,$bin_net)){
}elseif (preg_match("/^1110/",$bin_net)){
  	$class="D";
	$dotbin_net= "<font color=\"Green\">1110</font>" . substr(dotbin($bin_net,$cdr_nmask),4) ;
	$special="<font color=\"Green\">Class D = Multicast Address Space.</font>";
}else{
  	$class="E";
	$dotbin_net= "<font color=\"Green\">1111</font>" . substr(dotbin($bin_net,$cdr_nmask),4) ;
	$special="<font color=\"Green\">Class E = Experimental Address Space.</font>";
}

//if (ereg(&#39;^(00001010)|(101011000001)|(1100000010101000)&#39;,$bin_net)){
if (preg_match("/^(00001010)|(101011000001)|(1100000010101000)/",$bin_net)){
  	 $special=&#39;<a href="http://www.ietf.org/rfc/rfc1918.txt">( RFC-1918 Private Internet Address. )</a>&#39;;
}

// Print Results
tr(&#39;Address:&#39;,"<font color=\"blue\">$dq_host</font>",
	&#39;<font color="brown">&#39;.dotbin($bin_host,$cdr_nmask).&#39;</font>&#39;);
tr(&#39;Netmask:&#39;,&#39;<font color="blue">&#39;.bintodq($bin_nmask)." = $cdr_nmask</font>",
	&#39;<font color="red">&#39;.dotbin($bin_nmask, $cdr_nmask).&#39;</font>&#39;);
tr(&#39;Wildcard:&#39;, &#39;<font color="blue">&#39;.bintodq($bin_wmask).&#39;</font>&#39;,
	&#39;<font color="brown">&#39;.dotbin($bin_wmask, $cdr_nmask).&#39;</font>&#39;);
tr(&#39;Network:&#39;, &#39;<font color="blue">&#39;.bintodq($bin_net).&#39;</font>&#39;,
	"<font color=\"brown\">$dotbin_net</font>","<font color=\"Green\">(Class $class)</font>");
tr(&#39;Broadcast:&#39;,&#39;<font color="blue">&#39;.bintodq($bin_bcast).&#39;</font>&#39;,
	&#39;<font color="brown">&#39;.dotbin($bin_bcast, $cdr_nmask).&#39;</font>&#39;);
tr(&#39;HostMin:&#39;, &#39;<font color="blue">&#39;.bintodq($bin_first).&#39;</font>&#39;,
	&#39;<font color="brown">&#39;.dotbin($bin_first, $cdr_nmask).&#39;</font>&#39;);
tr(&#39;HostMax:&#39;, &#39;<font color="blue">&#39;.bintodq($bin_last).&#39;</font>&#39;,
	&#39;<font color="brown">&#39;.dotbin($bin_last, $cdr_nmask).&#39;</font>&#39;);
@tr(&#39;Hosts/Net:&#39;, &#39;<font color="blue">&#39;.$host_total.&#39;</font>&#39;, "$special");
print "$end";

function binnmtowm($binin){
	$binin=rtrim($binin, "0");
	//if (!ereg("0",$binin) ){
	if (!preg_match("/0/",$binin) ){
		return str_pad(str_replace("1","0",$binin), 32, "1");
	} else return "1010101010101010101010101010101010101010";
}

function bintocdr ($binin){
	return strlen(rtrim($binin,"0"));
}

function bintodq ($binin) {
	if ($binin=="N/A") return $binin;
	$binin=explode(".", chunk_split($binin,8,"."));
	for ($i=0; $i<4 ; $i++) {
		$dq[$i]=bindec($binin[$i]);
	}
        return implode(".",$dq) ;
}

function bintoint ($binin){
        return bindec($binin);
}

function binwmtonm($binin){
	$binin=rtrim($binin, "1");
	//if (!ereg("1",$binin)){
	if (!preg_match("/1/",$binin)){
		return str_pad(str_replace("0","1",$binin), 32, "0");
	} else return "1010101010101010101010101010101010101010";
}

function cdrtobin ($cdrin){
	return str_pad(str_pad("", $cdrin, "1"), 32, "0");
}

function dotbin($binin,$cdr_nmask){
	// splits 32 bit bin into dotted bin octets
	if ($binin=="N/A") return $binin;
	$oct=rtrim(chunk_split($binin,8,"."),".");
	if ($cdr_nmask > 0){
		$offset=sprintf("%u",$cdr_nmask/8) + $cdr_nmask ;
		return substr($oct,0,$offset ) . "   " . substr($oct,$offset) ;
	} else {
	return $oct;
	}
}

function dqtobin($dqin) {
        $dq = explode(".",$dqin);
        for ($i=0; $i<4 ; $i++) {
           $bin[$i]=str_pad(decbin($dq[$i]), 8, "0", STR_PAD_LEFT);
        }
        return implode("",$bin);
}

function inttobin ($intin) {
        return str_pad(decbin($intin), 32, "0", STR_PAD_LEFT);
}

function tr(){
	echo "\t<tr>";
	for($i=0; $i<func_num_args(); $i++) echo "<td>".func_get_arg($i)."</td>";
	echo "</tr>\n";
}
?>
声明
本文内容由网友自发贡献，版权归原作者所有，本站不承担相应法律责任。如您发现有涉嫌抄袭侵权的内容，请联系admin@php.cn

热AI工具

Undresser.AI Undress

Undresser.AI Undress

人工智能驱动的应用程序，用于创建逼真的裸体照片

AI Clothes Remover

AI Clothes Remover

用于从照片中去除衣服的在线人工智能工具。

Undress AI Tool

Undress AI Tool

免费脱衣服图片

Clothoff.io

Clothoff.io

AI脱衣机

AI Hentai Generator

AI Hentai Generator

免费生成ai无尽的。

显示更多

热门文章

R.E.P.O.能量晶体解释及其做什么（黄色晶体）
3 周前By尊渡假赌尊渡假赌尊渡假赌
R.E.P.O.最佳图形设置
3 周前By尊渡假赌尊渡假赌尊渡假赌
刺客信条阴影：贝壳谜语解决方案
1 周前ByDDD
R.E.P.O.如果您听不到任何人，如何修复音频
3 周前By尊渡假赌尊渡假赌尊渡假赌
在哪里可以找到原子中的起重机控制钥匙卡
1 周前ByDDD
显示更多

热工具

Dreamweaver CS6

Dreamweaver CS6

视觉化网页开发工具

记事本++7.3.1

记事本++7.3.1

好用且免费的代码编辑器

安全考试浏览器

安全考试浏览器

Safe Exam Browser是一个安全的浏览器环境，用于安全地进行在线考试。该软件将任何计算机变成一个安全的工作站。它控制对任何实用工具的访问，并防止学生使用未经授权的资源。

SublimeText3 英文版

SublimeText3 英文版

推荐：为Win版本，支持代码提示！

ZendStudio 13.5.1 Mac

ZendStudio 13.5.1 Mac

功能强大的PHP集成开发环境

显示更多

热门话题

gmail邮箱登陆入口在哪里
7428
15
CakePHP 教程
1359
52
steam的账户名称是什么格式
76
11
win11激活密钥永久
27
19
显示更多