Install php7.2 instead of php5.4 on Amazon Linux 2
Problem: When you start a new Amazon Linux 2 AMI server, and try to install php via command:
yum install php
After install successfully and check the version, you would see php -v
PHP 5.4.16 (cli) (built: Oct 31 2019 18:34:05)
However, the latest php version is 7.2 and you want to have a new version.
Solution: You can enable it via amazon linux extras with this command:
sudo amazon-linux-extras enable php7.2
Once it is enabled, follow the instructions to install:
yum clean metadata
yum install php-cli php-pdo php-fpm php-json php-mysqlnd
That’s it. Check the php -v again and it shows:
PHP 7.2.28 (cli) (built: Mar 2 2020 19:38:11) ( NTS )

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Experience in software development, application architecture, and deploying cloud solutions for enterprise customers. Strong hands-on skills with a Master's degree in Computer Science and business acumen with a master of business administration (MBA) in Finance. Certified in Amazon Web Services (AWS), Google Cloud Platform (GCP), Microsoft Azure, Kubernetes (CKA, CKAD, CKS, KCNA) and Scrum (PSM, PSPO) with experience in building banking products from scratch.