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<?php
/* ¶þ½øÖÆÈ¨ÏÞ¿ØÖÆPHPÀà
* ×÷ Õß: ¶à²ËÄñ
* ÓÊ Ïä: kingerq AT QQ DOT com
* À´ Ô´£ºhttp://blog.csdn.net/kingerq/archive/2009/10/22/4714223.aspx
* ´´½¨Ê±¼ä: 2009-10-22
*/
class binPower{
var $power = "";
//ȨÏÞ´æÖü±äÁ¿,Ê®½øÖÆÕûÊý
function __construct($power){
$this->power = intval($power);
}
/* Ìí¼ÓÖ¸¶¨È¨ÏÞ
* $right Ϊ2µÄN´Î·½Ê®½øÖÆÕûÊý£¬N´ú±íȨÏÞÐòºÅ
*/
function addPower($right){
//ÀûÓÃÂß¼»òÌí¼ÓȨÏÞ
$this->power = $this->power | intval($right);
}
/* ɾ³ýÖ¸¶¨È¨ÏÞ
* $right Ϊ2µÄN´Î·½Ê®½øÖÆÕûÊý£¬N´ú±íȨÏÞÐòºÅ
*/
function delPower($right){
//ɾ³ýȨÏÞ£¬ÏȽ«Ô¤É¾³ýµÄȨÏÞÈ¡·´£¬ÔÙ½øÐÐÓë²Ù×÷
$this->power = $this->power & ~intval($right);
}
/* ÅжÏÊÇ·ñ´æÔÚÖ¸¶¨È¨ÏÞ
* $right Ϊ2µÄN´Î·½Ê®½øÖÆÕûÊý£¬N´ú±íȨÏÞÐòºÅ
*/
function isPower($right){
//ȨÏޱȽÏʱ£¬½øÐÐÓë²Ù×÷£¬µÃµ½0µÄ»°£¬±íʾûÓÐȨÏÞ
if( ($this->power & intval($right)) == 0 ) return false;
return true;
}
/*
* ·µ»Ø²Ù×÷ºóµÄȨÏÞ
*/
function returnPower(){
//ΪÁ˼õÉÙ´æÖüλÊý£¬·µ»ØÒ²¿ÉÒÔת»¯ÎªÊ®Áù½øÖÆ
return $this->power;
}
}
/*
//ʾÀý
$right = new binPower(bindec(110011));
echo "Power: ".$right->power.' | '.decbin($right->power);
echo "<br>\n";
$right->addPower(4);
echo "Power +4: ".$right->power.' | '.decbin($right->power);
echo "<br>\n";
$right->delPower(2);
echo "Power -2: ".$right->power.' | '.decbin($right->power);
echo "<br>\n";
echo $right->isPower(bindec(100));
echo "Power is ".bindec(100).": ".$right->power.' | '.decbin($right->power);
echo "<br>\n";
*/
?>
<script language="javascript">
<!--
/*
* ¶þ½øÖÆÈ¨ÏÞ¿ØÖÆJAVASCRIPTº¯Êý
* ×÷ Õß: ¶à²ËÄñ
* ÓÊ Ïä: kingerq AT QQ DOT com
* À´ Ô´£ºhttp://blog.csdn.net/kingerq/archive/2009/10/22/4714223.aspx
* ´´½¨Ê±¼ä: 2009-10-22
*/
//³õʼȨÏÞ£¬Ê®½øÖÆ
var power;
/* Ìí¼ÓȨÏÞ
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<?php
function toFixLen($str,$len){ //¹Ì¶¨³¤¶È×Ö·û´®µÄ½ØÈ¡
if($len>=strlen($str)||!$len) return $str;
$len-=3;
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$ip = "1.1.1.255".chr(0)."haha";
if(ereg("^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$",$ip)) {
echo $ip;
} else {
echo "unknown";
}
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