Install PHP 7.3 on Debian 10

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If there is one thing that distinguishes Debian from other distributions, it is stability. However, this stability has a “price” that is to sacrifice a little the most recent versions of the programs. And that I have noticed that this version of Debian incorporates quite current software, but there are always some that are left. An example is PHP that in the Debian repositories appears version 7.2 but 7.3 is already mature. In some cases, you may need it. That is why, in this post, I will help you install PHP 7.3 on Debian 10. This way you will have the latest version of this programming language.

PHP 7.3 features

PHP 7.3 is the third minor update to branch 7. It includes many security enhancements and bug fixes, making it a pretty good version for developing applications. However, some of its most important new features are the following:

  • Flexible Heredoc and Nowdoc Syntax.
  • PCRE2 Migration.
  • Multiple MBString Improvements.
  • LDAP Controls Support.
  • Improved FPM Logging.
  • Windows File Deletion Improvements.
  • Several Deprecations.

Of course, to consult the rest of the features, you can read it in the release notes.

Install PHP 7.3 on Debian 10

To install PHP 7.3 on Debian 10, we have to use an external repository. However, it is quite secure. First, open a terminal session or connect to your server.

Then, install some packages needed for the process.

:~$ sudo apt install apt-transport-https lsb-release ca-certificates
1.- installing some required packages to install PHP 7.3 on Debian 10
1.- installing some required packages to install PHP 7.3 on Debian 10

Since we are adding an external repository, we need to add its security key.

:~$ sudo wget -O /etc/apt/trusted.gpg.d/php.gpg https://packages.sury.org/php/apt.gpg
2.- Adding the GPG key for the repository
2.- Adding the GPG key for the repository

Next, add the repository to install PHP 7.3 on Debian 10.

:~$ sudo sh -c 'echo "deb https://packages.sury.org/php/ $(lsb_release -sc) main" > /etc/apt/sources.list.d/php.list'

Then, refresh the APT cache.

:~$ sudo apt update

So, PHP 7.3 is now available to be installed. But we will use APT to search for PHP 7.3 packages.

:~$ sudo apt search php7.3

php7.3/unknown 7.3.7-2+0~20190725.42+debian10~1.gbp848ca5 all
  server-side, HTML-embedded scripting language (metapackage)

php7.3-cgi/unknown 7.3.7-2+0~20190725.42+debian10~1.gbp848ca5 amd64
  server-side, HTML-embedded scripting language (CGI binary)

php7.3-cgi-dbgsym/unknown 7.3.7-2+0~20190725.42+debian10~1.gbp848ca5 amd64
  debug symbols for php7.3-cgi

php7.3-cli/unknown 7.3.7-2+0~20190725.42+debian10~1.gbp848ca5 amd64
  command-line interpreter for the PHP scripting language

Then, install PHP 7.3 by typing the following command:

:~$ sudo apt install php7.3 php7.3-cli

After that check the PHP version.

:~$ php -v
PHP 7.3.7-2+0~20190725.42+debian10~1.gbp848ca5 (cli) (built: Jul 25 2019 11:53:58) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.3.7, Copyright (c) 1998-2018 Zend Technologies
with Zend OPcache v7.3.7-2+0~20190725.42+debian10~1.gbp848ca5, Copyright (c) 1999-2018, by Zend Technologies

And that is it.

Conclusion

To have the last versions of the programs can take us many advantages especially in subjects of security. PHP being a critical component of web applications, then it is convenient in some cases to have its most recent stable version.

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