¶þ½øÖÆÈ¨ÏÞ¿ØÖÆPHPÀà
<?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
Ïà¹ØÎĵµ£º
php°²×°³ÌÐòÔÀí£º
ÆäʵPHP³ÌÐòµÄ°²×°ÔÀíÎ޷ǾÍÊǽ«Êý¾Ý¿â½á¹¹ºÍÄÚÈݵ¼Èëµ½ÏàÓ¦µÄÊý¾Ý¿âÖУ¬´ÓÕâ¸ö¹ý³ÌÖÐÖØÐÂÅäÖÃÁ¬½ÓÊý¾Ý¿âµÄ²ÎÊýºÍÎļþ£¬ÎªÁ˱£Ö¤²»±»±ðÈ˶ñÒâʹÓð²×°Îļþ£¬µ±°²×°Íê³ÉºóÐèÒªÐ޸ݲװÎļþ¡£
²½Ö裺
¼ì²éĿ¼»òÎļþµÄȨÏÞ
Ð޸ĻòÌî¼ÓÅäÖÃÎļþ
¼ì²éÅäÖÃÎļþÕýÈ·ÐÔ
µ¼ÈëÊý¾Ý¿â
Ëø¶¨»òÉ ......
PHP5.0ºó£¬phpÃæÏò¶ÔÏóÌá³É¸ü¶à·½·¨£¬Ê¹µÃphp¸ü¼ÓµÄÇ¿´ó£¡£¡
һЩÔÚPHP½ÐħÊõ·½·¨µÄº¯Êý£¬ÔÚÕâÀï½éÉÜһϣºÆäʵÔÚÒ»°ãµÄÓ¦ÓÃÖУ¬ÎÒÃǶ¼ÐèÒªÓõ½ËûÃÇ£¡£¡
1.__construct() µ±ÊµÀý»¯Ò»¸ö¶ÔÏóµÄʱºò£¬Õâ¸ö¶ÔÏóµÄÕâ¸ö·½·¨Ê×Ïȱ»µ÷Óá£
Java´úÂë
class Test { function __construct() { ec ......
$ip = "1.1.1.255".chr(0)."haha";
if(ereg("^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$",$ip)) {
echo $ip;
} else {
echo "unknown";
}
Õâ¸öeregÕýÔòÏÞÖÆÁË$ipµÄÊý¾ÝΪxxx.xxx.xxx.xxxÕâÑùµÄÐÎʽ£¬±íÃæÉÏ¿´ÉÏÃæµÄ´úÂëÓ¦¸ÃÊä³ö"unknown"£¬¶øÊµ¼ÊÈ´Êä³öÁË"1.1.1.255haha"£¬ÒòΪeregº¯Êý´æÔÚNULL½Ø¶Ï ......
Ò»¡¢µÇ½
1.½øÈëlinux
2.Óû§Ãû: root
3.¿ÚÁî:123456
4.mysql Óû§Ãû root ÃÜÂë 123456
¶þ¡¢Æô¶¯mysqlÓëapache·þÎñ
1.Æô¶¯mysqÊý¾Ý¿â:/usr/local/mysql/bin/./mysqld_safe --user=mysql &
2.Í£Ö¹mysqlÊý¾Ý¿â:/usr/local/mysql/bin/mysqladmin -u root -p shutdown
3.Æô¶¯apache: /usr/local/apache2/bin/./ap ......