PHP Tutorials

Sometimes, we need to install a number of different versions of the PHP environment in the Windows Server, or a different php.ini configuration, such as the use of China's e-commerce network Ioncube system to encrypt the PHP program, To set the load

AuthName directive Syntax:authname Auth-domain Context:directory,. htaccess Override:authconfig Status:core This directive sets the name of the authorization realm for a directory. This realm was given to the client so, the user knows which username

To prevent remote submission of forms to prevent hackers from illegally submitting data remotely to create security for our site, let me introduce you to prevent remote illegal submission of form instances in PHP. Specific methods I. How PHP

PHP's four function Exec,shell_exec,system,passthru can execute system instructions, which poses a threat to system security and can be turned off if not used. The code is as follows Copy Code Vim/etc/php.ini

Introduce a function of generating random encryption in PHP, there is a need for friends to refer to, is a self-defined function is not the system comes with. The code is as follows Copy Code function Encrypt_str ($TXT,

Write your own SQL injection detection function, you can effectively detect the user Post,get over the reference to filter, the need for a friend reference. The code is as follows Copy Code Detection of/*sql

There are two types of anti-injection in PHP is SQL anti-injection, and another kind of process like many CMS all submitted variables, there is one can be directly configured php.ini, below I give you introduce. 1. Upload the safe.func.php to the

In PHP the simplest anti-theft chain method is the use of PHP $_server[\ ' http_referer\ ' function to operate, but this method is not reliable, we eventually need to use Apache,iis to operate, the following I share the introduction, the need for

Import OS Import Sys Import re Import time def listdir (dirs,liston= ' 0 '): Flog = open (OS.GETCWD () + "/check_php Tutorial _shell.log", "A +") If not Os.path.isdir (dirs): Print "Directory%s is not exist"% (dirs) Return Lists =

Note: The following code needs to open the PHP Tutorial's GD library, modify the configuration of the Php.in file, and then cancel the semicolon before the commented out line: Extension=php_gd2.dll. $width = 165; $height = 120; $image =

Traffic attack is a relatively primary site attack method, that is, constantly to brush the sample site, resulting in server processing or database load, resulting in a website can not be a normal method of attack means, the following I would like

This article collects a variety of PHP Tutorial Filter HTML tag methodmethod, there is the use of PHP's own function to filter the HTML tag also has the use of user-defined function home plus expression to filter the HTM tag, OK, let's look at the

When we do the message system often want to do not appear to filter out the sensitive words, the following is a simple implementation, in fact, we can use the database to save the information, and then find out to make judgments. The

Program code security is a programmer on the development of the various aspects of the quality of the embodiment, the following I will summarize their experience, there is a need to know a friend to refer to. Baidu a bit. Only PHP scripts under the

In the development of the project with PHP a lot of time our modular development, then there may be a lot of security hidden, the following is my summary of some PHP project code security Summary, there is need to understand the students can refer

In a lot of time we php a lot of functions are not used, and the site has a great security problem, below we use a disable_functions switch option in php.ini to close some of the functions that do not need to use. If prohibited, the following prompt

The article Simple analysis of the PHP file contained in the inlcude of a vulnerability analysis, the following hope for everyone a bit useful oh. Basic file contains a vulnerability: The code is as follows Copy Code

This article introduced two to the PHP program self-encrypting method, our common method Base64_encode (Gzdeflate ($contents)) Such to encrypt, the second method rare has the need friend also may refer to. Example 1 The code is as follows

We know that there are two ways to submit data on the Web, one is get, one is post, so many common SQL injections start with GET, and the injected statement must contain some SQL statements, because there is no SQL statement, then how to proceed,

Generally in the use of verification code when we have to achieve a partial refresh, this is inevitable, but also to improve the user experience, the following we look at a PHP verification code in the actual application of the use, there is a need