filemtime

Method 1. CometHttp://www.xiumu.org/technology/the-php-notes-comet-long-connection-instance.shtml This article is very good, Ajax keeps a long connection with the server, The server blocks until there is a new message, that is, the server needs to

Ec (2); this script is the last revision and output of the page as twenty minutes ago, or date XX days ago... or even if you do not update too much-shown 20 weeks ago! FileName $ last_modifiedfilemtime (& quot; FILE. php & quot;); & nbsp; {$

PHP File ProcessingIn the application of PHP files on the server, the related scope is not only the various connection and access operations between the user and the server database, but also the file processing functions built in PHP, to process

Copy codeThe Code is as follows:Define ('cache _ root', dirname (_ FILE _). '/cache'); // CACHE storage directoryDefine ('cache _ time', 1800); // The cache time unit is seconds.Define('cache_fix', '.html ');$ CacheName = md5 ($ _ SERVER ['request _

Here we provide four high-concurrency file read/write solutions, each with its own advantages. You can solve php concurrent file read/write conflicts based on your own situation. Here we provide four high-concurrency file read/write solutions, each

 # Exploit Title: nodesforum 1.059 Remote File compression sion Vulnerability # Google Dork: inurl: powered by Nodesforum # Date: 6/23/2011 # Author: bd0rk (bd0rk [at] hackermail.com) # Software-Download: http://home.nodesforum.com/download?

The template is called a TPL and mimics the Smarty template engine.The template we're talking about is a Web template, a page written primarily by a language composed of HTML markup, but there's also a way to represent a dynamic generation of

I. Introduction PHP, a web design scripting language that has emerged in recent years. Due to its powerful and scalability, PHP has developed considerably in recent years. Compared with traditional ASP websites, it has an absolute advantage in speed.

From: http://hqlong.com/2009/01/530.html For applications with low daily IP addresses or low concurrency, do not consider this !! There is no problem with the normal file operation method. However, if the concurrency is high, when we perform read

This function mainly uses the file modification time function filemtime and the current time-frame subtraction method to determine whether to update the content. The code is as follows: // This function uses the file modification time function

The PHP version of the website cache to speed up the opening of the way to share, the need for friends can refer to the following instructions: 1. the compressed files are cached on the server, and the re-access reduces the re-compression time to

Header()is used to send raw HTTPHeaders. See the http/1.1 specification for more information on HTTPHeaders. Example One: Copy CodeThe code is as follows: Header ("location:http://www.jb51.net";); exit;//must add "exit" after each redirect to

Details the php file directory base operation, We know that the temporary declaration of the variable is stored in memory, even if it is a static variable, the script will be released after the run, so, want to persist the contents of a variable,

PHP header () output picture cache In many developments, we tried to use the header ("Content-type:image/jpeg") to output images and try to use some PHP image processing techniques to make the output image more intelligent and dynamic. But we often

Today's web site generally need to deal with the database, access to a large amount of the database will be a great pressure. Caching the results of some dynamic page execution, and accessing the cache directly during the next visit can reduce the

For the day IP is not high or the number of concurrency is not a very large application, generally do not consider these! There is no problem with the general file operation method. However, if the concurrency is high, when we read and write to the

Describes in detail the application of the cache technology in PHP and the php Cache technology. Describes the application of the cache technology in PHP in detail, explains the php Cache technology, a web design scripting language that has emerged

Small series of PHP for beginners today to introduce PHP file operations commonly used methods summary, including: file read and write, create, view file properties, file deletion and so on the operation of the file. Before accessing a file, we

The php template engine technology uses smarty for simple implementation. After tp, you also want to know how the template technology is implemented. therefore, to write a simple template class, you can simply read the template file-& gt; replace

Go Implementation of PHP cache SQL query cache is suitable for readers this tutorial is suitable for PHP programmers who are interested in caching SQL queries to reduce the load on database connections and execution, and improve script