php count visitors currently online

This article mainly introduces how to call the WordPress function to count the access volume and implement the PHP native counter. The author also mentions the two plug-ins in WordPress. However, we do not recommend plug-ins for performance

The security of PHP applications and PHP applications. The security of PHP applications. the security of PHP applications, whether in development, interview, or technical discussion, requires a deep understanding and understanding. Objective in this

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

Security of PHP applications-you must have a deep understanding of security, whether in development, during interviews, or during technical discussions. TargetThis tutorial aims to show you how to protect your own Web applications. Explains how to

PHP development cannot violate security rules to filter user input. As the most basic precaution, you need to pay attention to your external submissions and make the first security mechanism to handle the firewall. Rule 1: never trust external data

PHP Beginners FAQ set correction version (21 Q & ). 1. how to connect two strings? A: You can use ". "Operation symbol, such as $ newStrZhang. san. in java, the "+" operator is used. 1. how do I connect two strings? A: You can use ". "Operation

As a PHP programmer, especially a newbie, I always know too little about the sinister nature of the Internet. it is often difficult to handle external intrusions, they do not know how hackers intrude, commit intrusions, upload vulnerabilities, SQL

The php faq set fixes some details of online communication errors ;. 1. how to connect two strings? A: You can use ". "Operation symbol, such as $ newStr =" Zhang ". "san", which uses the "+" operator symbol in java. do not confuse it. 2. how to

As a PHP programmer, especially a newbie, I always know too little about the sinister nature of the Internet. it is often difficult to handle external intrusions, they do not know how hackers intrude, commit intrusions, upload vulnerabilities, SQL

Rule 1: never trust external data or enter information about Web application security. The first thing that must be realized is that you should not trust external data. External data includes any data that is not directly input by programmers in php