In daily development, most people enable the debugging mode in the development environment and disable the debugging mode in the product environment. You can view various errors and exceptions during development, but disable the error display online
Www.2cto.com: This site has spent a lot of time studying the phpddos problem and published some research results. However, no perfect solution was found, including the conventional method provided in this article, which seriously affected website
After nginx reverse proxy, all the IP addresses obtained in the application are the IP addresses of the reverse proxy server, and the obtained domain name is also the Domain Name of the URL configured by the reverse proxy, you need to add some
Find the detailed explanation of smb. conf from the Internet, and it is still Chinese!In Linux terminal mode, enter # vi/etc/samba/smb. conf to open smb. conf.
====================================== Global settings ====================== ============
1. $ _ SERVER ['php _ SELF '] -- get the file name of the script being executed
2. $ _ SERVER ['server _ Protocol'] -- name and version of the communication PROTOCOL when requesting the page.
3. $ _ SERVER ['request _ time'] -- the timestamp at the
Cause: There are many users and a large amount of data. Multiple databases occupy one database server. Linked Server is used to process distributed queries: when the client application executes distributed queries through the linked Server, SQL
The variable name in PHP starts with the dollar sign $. It can contain numbers, letters, and underscores. It can only start with a letter or underline and cannot start with a number.
$ STR = "Hey, Mom told you to go back for dinner"; echo $
$ _ Server ['php _ Self '] # File Name of the script being executed, which is related to document root.$ _ Server ['argv'] # parameters passed to the script.$ _ Server ['argc '] # contains the number of command line parameters passed to the Program (
Server variable $ _ server details:
1. $ _ session ['php _ Self '] -- get the file name of the script being executed
2. $ _ server ['server _ Protocol'] -- name and version of the communication protocol when requesting the page. For example, "HTTP/1.
Shen Rui, software engineer, IBM CSDL
Shen Rui is currently working in ibm csdl activeinsight and is mainly engaged in the development of IBM WebSphere dashboard framework products. He has a strong interest in open-source software, welcome to
ArcSDE
Database Connection Method
I,ArccatalogSpatial Database Connection method:Oracle 10gOfArcSDEA brief description of the database is as follows:
1, Application server connection (also knownArcSDEConnections and Level 3 connections)
The
Today, I checked the ecshop source code and found that the $ _ server ['HTTP _ x_forwarded_host '] was used to determine the host address, for the moment, many people directly judge through $ _ server ['HTTP _ host'], but there is a problem through
Vulnerability 1
Upload a new file:
It is dangerous to directly upload files to the images folder of the website.
Solution: Delete the fck editor and use another editor.Alternatively, find the
1. directly obtain the websiteDomain NameYou do not need to change the http_server and other information of the configure. php file when copying the website.Define ('HTTP _ Server', 'HTTP: // '. $ _ server ['HTTP _ host']);Define ('https _ Server', '
Variable: $ _ server, used in PHP 4.1.0 and later versions. For earlier versions, use $ http_server_vars
Variable: $ _ ENV, used in PHP 4.1.0 and later versions. For earlier versions, use $ http_env_vars
Variable: $ _ cookie, used in PHP 4.1.0 and
CopyCode The Code is as follows: $ _ server ['HTTP _ accept_language '] // browser Language
$ _ Server ['remote _ ADDR '] // ip address of the current user.
$ _ Server ['remote _ host'] // host name of the current user
$ _ Server ['request _ URI '] /
Http://hi.baidu.com/sungoogle/blog/item/015d19305180869ba8018e68.html
Today, I carefully studied the manual about server variables and wrote a note to help beginners.
I think the red part is more common and important. The blue part is added after
This article will introduce you to a good php File Upload management system that requires logon. You can refer to the php File Upload management system for its simple functions.
The Code is as follows:
Copy code
$ Admin_pw = "
Today, one of my machines suddenly sent a large number of data packets to the outside, which can be 1 GB or more per second. Although I used a policy to disable UDP packet sending, it took a lot of CPU, so I finally thought of a solution.
First look
What is the effect of Static Page implementation with the idea of memcache ??, Static memcache
Recently, due to the needs of previous projects, it is necessary to optimize a PHP project. After optimization, I suddenly want to try to use memcache to
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