Downloading and Installing PHP on Linux

PHP Tutorials - Herong's Tutorial Examples

∟Downloading and Installing PHP on Linux

This section provides a tutorial example on how to download and install the PHP engine on Linux computers.

The PHP engine is pre-installed on most Linux computers. There is no need to run any command to download and install it.

For example, PHP 7.2 is available on my Ubuntu 18 computer by default:

herong$ php -v 

PHP 7.2.24-0ubuntu0.18.04.17 (cli) (built: Feb 23 2023 13:29:25) (NTS)
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.2.0, Copyright (c) 1998-2018 Zend Technologies
  with Zend OPcache v7.2.24-0ubuntu0.18.04.17, 
  Copyright (c) 1999-2018, by Zend Technologies

The same version of PHP engine is also available on my CentOS 8 computer:

herong$ php -v 

PHP 7.2.24 (cli) (built: Oct 22 2019 08:28:36) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.2.0, Copyright (c) 1998-2018 Zend Technologies

If the PHP engine is not available on your Linux computer, just download and install it with the software package manager as shown below:

# on Ubuntu or Debian computers
sudo apt install php

# on Fedora, RHEL or CentOS computers
sudo dnf install php

Table of Contents

About This Book

►Introduction and Installation of PHP

What Is PHP

Downloading and Installing PHP on Windows

►Downloading and Installing PHP on Linux

Downloading and Installing PHP on macOS

"php -help" - Command Line Options

"php -m" - Built-in Modules

"php -i" - PHP Engine Information

php.ini - PHP Runtime Configuration

Hello.php - My First PHP Script

"php -a" - PHP Interactive Shell

Downloading and Installing PHP Documentation

PHP Script File Syntax

PHP Data Types and Data Literals

Variables, References, and Constants

Expressions, Operations and Type Conversions

Conditional Statements - "if" and "switch"

Loop Statements - "while", "for", and "do ... while"

Function Declaration, Arguments, and Return Values

Arrays - Ordered Maps

Interface with Operating System

Introduction of Class and Object

Integrating PHP with Apache Web Server

Retrieving Information from HTTP Requests

Creating and Managing Sessions in PHP Scripts

Sending and Receiving Cookies in PHP Scripts

Controlling HTTP Response Header Lines in PHP Scripts

Managing File Upload

Functions to Manage Directories, Files and Images

Localization Overview of Web Applications

Using Non-ASCII Characters in HTML Documents

Using Non-ASCII Characters as PHP Script String Literals

Receiving Non-ASCII Characters from Input Forms

"mbstring" Extension and Non-ASCII Encoding Management

Managing Non-ASCII Character Strings with MySQL Servers

Configuring and Sending Out Emails

Managing PHP Engine and Modules on macOS

Managing PHP Engine and Modules on CentOS

Archived Tutorials

References

Full Version in PDF/EPUB