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<?php
//µ¥ÀýģʽµÄÀàLock
class
Lock
{
//¾²Ì¬ÊôÐÔ$instance
static
private
$instance
= NULL;
//Ò»¸öÆÕͨµÄ³ÉÔ±ÊôÐÔ
private
$switch
= 0;
//getInstance¾²Ì¬³ÉÔ±·½·¨
static
function
getInstance()
{
//Èç¹û¶ÔÏóʵÀý»¹Ã»Óб»´´½¨£¬Ôò´´½¨Ò»¸öеÄʵÀý
if
(self::
$instance
== NULL)
{
self::$instance
=
new
Lock();
}
//·µ»Ø¶ÔÏóʵÀý
return
self::
$instance
;
}
//¿Õ¹¹Ô캯Êý
private
function
Lock()
{
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it is 21th of May. The Month of PHP Security
(http://www.php-security.org) is still running and we have reached a
vulnerability count of 40 vulnerabilities, which is nearly as much as we
disclosed during the whole Month of PHP Bugs in 2007. However there are
11 more days until the end of May and ......
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