Optimization and Security
Here are some best practices to follow when running PHP apps in production:
Use a PHP accelerator
PHP accelerators like OPcache speed up PHP execution by caching bytecode. Caching avoids redundant compile times and improves performance.
Enable PHP caching
Caching of objects and query results with APCu or Redis avoids bootstrapping on each request. Configure caching layers based on your common query patterns.
Enable Gzip compression on both PHP output and static assets. Smaller responses lead to faster transmission over the network to end users.
Use a CDN
Distribute static assets using a content delivery network. CDNs improve performance by caching assets at edge locations closer to users.
In production turn off full error reporting. Log errors to file instead of displaying. Don’t expose sensitive information in error output.
Follow security best practices
Validate and sanitise user input, use prepared statements for SQL, enable SSL, use hashed passwords, conduct regular security audits etc. to harden your PHP application.
Monitor resource usage, application metrics, uptime, and server health. Get notified of any issues before they cause problems.
For frequently updating applications, use continuous deployment to automate deploying code changes.
Version control workflow
Follow a Git flow branching model and use pull requests for code reviews. Merge approved commits to the master branch which is the source of production deploys.
Services like DeployBot, Codeship or CircleCI can listen for Git commits and auto deploy changes from master branch to production.
Run unit, integration and other tests automatically on commits to catch any regressions before deploying to users.
Use a blue-green deployment strategy to shift traffic between old and new versions. This prevents any downtime or partial updates.
Quickly rollback any bad deploys automatically by reverting to the last known good version from before issues occurred.
Automating deployments through continuous integration improves developer productivity and reduces errors.
Deploying a PHP web application requires planning and attention to details at each stage from development to production hosting. Follow security best practices and optimize performance. Automate deployments through continuous integration to simplify maintenance and updates to your live site.
Carefully testing locally and migrating your database and assets ensures a smooth transition to the production environment. Keep optimizing and enhancing your application based on real user data.