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This tutorial will show you how to upgrade PHP 5.4 to PHP 7.3 on CentOS 7.5 (1804).

I’m assuming that you are running a stock installation of CentOS, and already have PHP 5.4 installed.

 

1. Verify current version of PHP

Type in the following to see the current PHP version:

php -v

The output should match this:

PHP 5.4.16 (cli) (built: Apr 12 2018 19:02:01)
Copyright (c) 1997-2013 The PHP Group
Zend Engine v2.4.0, Copyright (c) 1998-2013 Zend Technologies

Cool, let’s move on!

 

2. Install the REMI and EPEL repositories

If you don’t already have them, install the Remi and EPEL repositories:

rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
rpm -Uvh https://rpms.remirepo.net/enterprise/remi-release-7.rpm

Enable the Remi repository globally:

nano /etc/yum.repos.d/remi.repo

Under the section that looks like [remi] make the following changes:

[remi]
name=Remi's RPM repository for Enterprise Linux 7 - $basearch
#baseurl=http://rpms.remirepo.net/enterprise/7/remi/$basearch/
#mirrorlist=https://rpms.remirepo.net/enterprise/7/remi/httpsmirror
mirrorlist=http://cdn.remirepo.net/enterprise/7/remi/mirror
enabled=0
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-remi

Type CTRL-O to save and CTRL-X to close the editor

Enable the Remi PHP7.3 Repository:

nano /etc/yum.repos.d/remi-php73.repo

Under the section that looks like [remi-php73] make the following changes:

[remi-php73]
name=Remi's PHP 7.3 RPM repository for Enterprise Linux 7 - $basearch
#baseurl=http://rpms.remirepo.net/enterprise/7/php73/$basearch/
mirrorlist=https://rpms.remirepo.net/enterprise/7/php73/httpsmirror
mirrorlist=http://cdn.remirepo.net/enterprise/7/php73/mirror
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-remi

Make sure you un-comment the HTTPS mirror-list as well. The HTTP mirror seems to run into issues every now and then.

Type CTRL-O to save and CTRL-X to close the editor

 

3. Upgrade PHP 5.4 to PHP 7.3

Now we can upgrade PHP. Just type in the following command:

yum -y upgrade php*

Once the upgrade has completed, verify that you have PHP 7.3 installed:

php -v

Output should look like:

PHP 7.3.0RC5 (cli) (built: Nov  6 2018 10:22:47) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.3.0-dev, Copyright (c) 1998-2018 Zend Technologies

You’re now running with PHP 7.3!

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This Post Has 8 Comments
  1. Thanks for the instructions. It worked on Centos 7. However, the output of phpinfo(); shows the older version 5.4.16

    1. It happens to me also, how did you resolve it? Does it need to disable the older version and enable the new one?

  2. Thanks for providing, wondering why default repo doesnt contatin highest version of PHP… Is 5.4 the most stable? Thanks!

  3. Hi,
    I tried this on my VPS for PHP 7.4, but the last step doesn’t work:

    user@web01.saadhost.com ~$ yum -y upgrade php*
    Loaded plugins: fastestmirror
    Loading mirror speeds from cached hostfile
    * base: mirror.atlanticmetro.net
    * epel: mirror.metrocast.net
    * extras: mirror.atlanticmetro.net
    * remi-php72: repo1.ash.innoscale.net
    * remi-php73: repo1.ash.innoscale.net
    * remi-php74: repo1.ash.innoscale.net
    * remi-safe: repo1.ash.innoscale.net
    * updates: mirror.atlanticmetro.net
    No packages marked for update

    user@web01.saadhost.com ~$ php -v
    PHP 7.3.12 (cli) (built: Nov 30 2019 19:45:04) ( NTS )
    Copyright (c) 1997-2018 The PHP Group
    Zend Engine v3.3.12, Copyright (c) 1998-2018 Zend Technologies
    with the ionCube PHP Loader + ionCube24 v10.3.8, Copyright (c) 2002-2019, by ionCube Ltd.

  4. Huh. I get:
    # yum -y upgrade php*
    Loaded plugins: product-id, search-disabled-repos, subscription-manager
    remi-safe | 3.0 kB 00:00:00
    remi-safe/primary_db | 1.7 MB 00:00:02
    No packages marked for update

    # rpm -qa | grep php
    php-cli-5.4.16-46.1.el7_7.x86_64
    php-common-5.4.16-46.1.el7_7.x86_64
    php-5.4.16-46.1.el7_7.x86_64
    php-pgsql-5.4.16-46.1.el7_7.x86_64
    php-pdo-5.4.16-46.1.el7_7.x86_64

    # php -v
    PHP 5.4.16 (cli) (built: Oct 29 2019 10:01:20)
    Copyright (c) 1997-2013 The PHP Group
    Zend Engine v2.4.0, Copyright (c) 1998-2013 Zend Technologies

    # cat /etc/redhat-release
    Red Hat Enterprise Linux Server release 7.7 (Maipo)

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