The topic of our discussion today is the applications of PHP. We will take a detailed look at them. But first, let’s briefly explain the purpose of PHP.
What is the purpose of PHP?
Personal Home Page (old name) or Hypertext Preprocessor (new name) is a short abbreviation for PHP. Yes, it is peculiar because it does not correspond to the name. Easily said, it’s an open-source server-side scripting language. Its principal application is the creation of web applications. It’s called a scripting language since it’s a program that uses lines of code to create a script. They are written with the intention of automating tasks.
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The process of updating the PHP Version of your WordPress Site is relatively easy and mostly depends on the hosting provider. Before you do it, perform a backup, check what is the current version, see to what date it is supported, and do you really need to update already. Then follow the instructions below.
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PHP is a very useful programming language, and you can use it, instead of the built-in commands like the Dig command, for querying DNS records. Do you want to know how to check DNS records using PHP? It is a simple process, and there are different PHP functions that you can use. Let’s see them.
PHP functions for checking DNS records
There are several functions that can be used for checking DNS records. For example, some can check just if the DNS records exist, others serve for only a specific type of DNS record, and others can show any type.
- checkdnsrr() – This query will see if DNS records exist for the host (hostname or IP address).
- dns_get_record() – Get the DNS record for the host (hostname or IP address). It could be any type of DNS record.
- getmxrr() – Get the MX DNS records only, for the host (hostname or IP address).
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This step-by-step guide will explain to you how to manually install PHP on Windows 10. After that, you can use it to install PHP on your computer and test websites and applications on your local host or set it up on a remote server. If you have already moved to Windows 11, the steps will be the same, so you could still use this guide.
Step 1: Download PHP from the official site.
You will need to visit the official site of PHP.
There, in the Download tab, you will see the different versions. Get the latest Stable PHP version. At the moment, this is PHP 8.1.1.
Click on the “Windows downloads”, and then you will see all of the versions for Windows. Find the right one based on the architecture of your processor – 64bit (x64) or 32bit (x86). If you are not sure, press the Start button, type ”System information”, and open the application. It will show you the answer.
Click on the Zip archive (Thread safe) and download it.
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Do you know how to get an IPv4 address with PHP from a host? No. Now It is your time to learn it and start using it in your code. It is very simple, don’t worry.
$_SERVER and REMOTE_ADDR
We can get the IP address of the user with $_SERVER in PHP. The information about the user and its activities could help us for security or marketing purposes.
The most basic way to collect this information in PHP is with REMOTE_ADDR. The answer will be the IP address of the user that is currently on the webpage.
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Sometimes you have a PHP application and multiple devices, and you need a fast and reliable way to get the hostname of a server. If that is your case, here you will learn the best way to get a hostname with PHP. You can find it if you know the IP address or the local machine is the host.
Gethostbyaddr() PHP function
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What is PHP?
PHP, short for Hypertext Preprocessor, is an open-source, server-side scripting and programming language. The primary usage of it is for web development. However, PHP is a very important language for everybody involved in some way with WordPress. The reason for that is because PHP is used for the majority of the core WordPress software. Many people think that PHP as a programming language is not in use anymore, but actually, that is not quite true.
Continue reading “PHP vs. Python: What is the difference?”
You can use PHP code thanks to the CLI SAPI (command-line interpreter/interface Server Application Programming Interface). It can serve you for developing of shell application with PHP, straight from the command line of your Linux computer.
You can use PHP code in the Linux command line in 3 different ways.
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Yes, you definitely should update to PHP 8, if you are using an older version. There will be many new features, regardless of the version you are coming from. What should you expect?
When was PHP 8 introduced?
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Updating is never 100% painless, but the team behind PHP has tried its best to lower the incompatibilities and provide a good experience during the process of updating from PHP 5 to 7.
Continue reading “How to update PHP 5 to 7?”