This article introduces two functions: one is to verify the IP address, and the other is to obtain the real IP address of the user. it is also a common operation function of two IP addresses. if you need it, you can refer to it. The code for
Php function to obtain the online ip address and client ip address
/**
* Obtain the client ip address
* @ Return [string] [description]
*/
Function getclientip (){
$ Ip = null;
If
[Switch] Summary of super practical PHP functions and summary of Practical php functions. [Turn] Super Practical PHP Function Summary, Practical php Function Summary original link: www.codeceo.comarticlephp-function.html 1, PHP encryption and
This article provides a detailed analysis of the MySQL connection class in php. if you need a friend, you may accidentally find such a Mysql connection class on your computer, I don't know where to add it to my favorites. paste it.
Next several show_
: This article describes how to prevent multiple malicious submission attacks. For more information about PHP tutorials, see.
Background: the continuous sending or malicious submission of requests by machines puts a lot of pressure on servers.The
This article mainly introduces several practical functions of PHP, combined with examples to summarize and analyze the PHP network operation, string manipulation, time operation and the use of regular expressions and other skills, the need for
Simple defense against multiple malicious server submissions
Background: The continuous sending or malicious submission of requests by machines puts a lot of pressure on the server. The optimal strategy for this attack is to determine the number of
IP blacklist implementation method is to put the IP to be filtered in a TXT file or database, and then when we access to obtain our IP address and then to traverse the comparison can be achieved.
The school's news system requires some news to only
Typically, when a visitor visits a website, the page records the user's cookie information, and when the cookie expires, the user is deemed not to be online. In this article we use PHP to record the guest IP, and on the client record the cookie and
Get the visitor's IP address [PHP] Code
static public Function GetIP ()
{
if (getenv ("Http_client_ip") && strcasecmp (getenv ("Http_client_ip"), "Unknown")
{
$ip = getenv ("Http_client_ip");
}
CC attack is the other side using the program or some agents on your site uninterrupted access, resulting in your site can not handle and in the state of the machine, below we summarize some anti-CC attack PHP instance code, you can refer to friends.
One is the post request function of curl, which is mainly used for api development on various platforms to process request interfaces. if you have multiple platforms and want to transmit data between them, this function is absolutely useful.
One is
PHP several useful custom Function summary, PHP Custom Function Summary
This paper summarizes several useful custom functions of PHP. Share to everyone for your reference, as follows:
Recently looking at the code, found that the following are some
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