Web|web2 from a person, 200,000 yuan, a year quickly to Douban do more than 400,000 registered users, is recognized as the pioneer of the Chinese web2.0 era.
Next to Beijing's 798 Art district, there is a red business building. The front is noisy
/** * Using file locks to determine if a program is running * @return returns TRUE if it is running, or false/private static Boolean IsRunning () {Boolean rv=false;
try {//String Os_name=system.getproperty ("Os.name");
Specifies the
1, has been the main support of the Chinese Internet model is: wool out of the dog.Not many people are thinking about how to get the wool out of the sheep, but are thinking about how to pull the wool out of the dog more. Everyone is very painful,
This article mainly introduces PHP to use multiple processes to control file read and write examples, need friends can refer to the following The code is as follows: 0) { usleep (rand (1, 10000)); &N Bsp } $retries + 1; }while (!flock ($
Cache
Ccdot/2006-2-26 3:50:32/324/
/*Author: Old farmerLast modify:2006-2-26Author url:http://www.cjjer.comDes cription: This article about caching, out of the blue ideal his station declined to reprint, otherwise QXDD., passed under the
Pre-study Preparation:To learn PHP, of course, you have to install PHP, so if you are the first time to learn, please read the online college article:PHP4.03 installation under LinuxInstallation of PHP4.04 under Win98Installation of PHP4.04 under
#*********************************************************
#文件名称:
inc_class.upload.php
#Copyright (c)
2007-2009 Youth once all rights reserved.
#最后更新: 2009-08-05
#版本: v 2.0.a
#注: Please keep this declaration information when forwarding, this
Records lock record Locking
Function: When a process is reading or modifying a part of a file, it can prevent other processes from modifying the same file area.
BYTE range lock Byte-range locking
Second, history
Flock function, you can lock the
In any computer device, files are all necessary objects, and in Web programming, the operation of files has always been a headache for web programmers, and the operation of files in the CMS system this is necessary, very useful, we often encounter
Problem | optimization
In a function, it is more efficient to use return than to use global when passing an array, for example: function Userloginfo ($usertemp) {$detail =explode ("|", $usertemp);return $detail;}$login =userloginfo ($USERDB);
The page actually says it is a technology, maybe it can't be said to be a real technology. This is just the way I want to deal with the page, of course, with other people's ideas may be consistent. But I still want to give it a nice name. So what is
Logic (rationale), derived from classical Greek λόγος (logos), originally meant "words" or "words", but also extended meaning "thinking" or "reasoning". Logic is often considered to be a study of the evaluation criteria of argumentation, although
This article presents 5 tips for configuring Apache 1.3 or Apache 2.0 servers. We will describe the following configuration scenario: adjust Apache's
Accept ()serialization, Apache 2.0 threads, using
Mod_sslSSL session caching, optimizing keep-alive
A few days ago, Michael Al, a famous blogger, published an article on the 15 Web 2.0 sites that are essential to their lives, including Digg, Flickr and other well-known sites, but my usual del.icio.us and Google Reader are not in it, somehow. These
1, in a function, it is more efficient to use return than to use global when passing an array, for example:
function userloginfo($usertemp){ $detail=explode("|",$usertemp); return $detail; } $login=userloginfo($userdb);
Than
function userloginfo($
Problem | Optimization 1, in a function, when passing an array
using return is more efficient than using global
like
.
function Userloginfo ($usertemp) {
$detail =explode ("|", $usertemp);
return $detail;
}
$login =userloginfo ($USERDB)
This article mainly introduces a PHP cache class, file name using MD5 encryption, we refer to the use of the bar The code is as follows: write (' sys ', $data); } Print_r ($data);
Statistics | online | number online
This method does not need the MySQL database support, uses the ordinary text to realize the counting function
First, you have permission to read and write files.This procedure can be run directly, the first
Well, the basic things have been learned, let us carry out the actual combat it! Let's start with this example program. Then you can try it on your own platform first. Believe this will get a little perceptual knowledge.In this application a total
The following share a simple way to use PHP to calculate the current number of online Web site, but simply by calculating the visitor IP address to arrive at a rough result, can not accurately calculate the current number of online, the accuracy of
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