Why can't I upgrade to PHP 7.3?

June 4, 2019 1.6k views
PHP Apache Ubuntu

apt-get fails to install the php7.3 package:

# apt-get install php7.3
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package php7.3
E: Couldn't find any package by regex 'php7.3'

I have followed these instructions including overriding locale settings during add-apt-repository and apt-get update:

```# LC_ALL=C.UTF-8 add-apt-repository ppa:ondrej/php
Co-installable PHP versions: PHP 5.6, PHP 7.x and most requested extensions are included. Only Supported Versions of PHP (http://php.net/supported-versions.php) for Supported Ubuntu Releases (https://wiki.ubuntu.com/Releases) are provided. Don't ask for end-of-life PHP versions or Ubuntu release, they won't be provided.

Debian oldstable and stable packages are provided as well: https://deb.sury.org/#debian-dpa

You can get more information about the packages at https://deb.sury.org

BUGS&FEATURES: This PPA now has a issue tracker:


  1. If you are using php-gearman, you need to add ppa:ondrej/pkg-gearman
  2. If you are using apache2, you are advised to add ppa:ondrej/apache2
  3. If you are using nginx, you are advise to add ppa:ondrej/nginx-mainline or ppa:ondrej/nginx

PLEASE READ: If you like my work and want to give me a little motivation, please consider donating regularly: https://donate.sury.org/

WARNING: add-apt-repository is broken with non-UTF-8 locales, see
https://github.com/oerdnj/deb.sury.org/issues/56 for workaround:

LC_ALL=C.UTF-8 add-apt-repository ppa:ondrej/php

More info: https://launchpad.net/~ondrej/+archive/ubuntu/php
Press [ENTER] to continue or ctrl-c to cancel adding it

gpg: keyring /tmp/tmp5dog4r97/secring.gpg' created
gpg: keyring
/tmp/tmp5dog4r97/pubring.gpg' created
gpg: requesting key E5267A6C from hkp server keyserver.ubuntu.com
gpg: /tmp/tmp5dog4r97/trustdb.gpg: trustdb created
gpg: key E5267A6C: public key "Launchpad PPA for Ondřej Surý" imported
gpg: Total number processed: 1
gpg: imported: 1 (RSA: 1)

I am running Ubuntu 14.04.6 with Apache 2.4.7 and currently php 5.5.9 (which I am trying to upgrade).

What is going wrong?

2 Answers

Upgrade to php7.3

sudo apt-get install software-properties-common
sudo add-apt-repository ppa:ondrej/php
sudo apt-get update
sudo apt-get upgrade
sudo apt-get install -y php7.3

Check php version

php -v

I hope this helps


Currently, Ubuntu 14.04 is EOL (end of life), which limits updates to security patches until 2022. Many third-party repositories, including those maintained by Ondřej Surý, will discontinue updates for EOL'ed releases and instead focus on the latest--Ubuntu 18.04 is the latest LTS release.


You can verify what PHP packages are available by using apt-cache search. For example, if we wanted to verify what php7.3 packages are available, we could use the command below:

apt-cache search php7.3 | grep "php7.3" | awk '{print $1}'

If the output from the command above provides a list of PHP packages, those should be accessible and available for you to install. If the list is empty, the best option would be to migrate to Ubuntu 18.04 and install the PPA once again.

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