How to Use Config Cache in Laravel for Faster Performance

In Laravel, use the php artisan config:cache command to combine all configuration files into a single cached file, improving performance by loading configs faster. To clear the cache, run php artisan config:clear. Always run config cache after changing config files.

Syntax

The main commands to manage config cache in Laravel are:

• php artisan config:cache - Creates a cache file for faster config loading.
• php artisan config:clear - Removes the cached config file.

Use these commands in your terminal inside the Laravel project folder.

bash

php artisan config:cache
php artisan config:clear

Example

This example shows how to cache and clear config in Laravel. First, run the cache command to speed up config loading. Then, clear the cache if you update config files.

bash

cd /path/to/your/laravel/project
php artisan config:cache
# Output: Configuration cached successfully.

# After changing config files:
php artisan config:clear
# Output: Configuration cache cleared!

Output

Configuration cached successfully.
Configuration cache cleared!

Common Pitfalls

Common mistakes when using config cache include:

• Forgetting to clear and recache after changing config files, causing old settings to persist.
• Running config:cache in local development without need, which can slow debugging.
• Using environment variables in config files incorrectly, as cached config won't update env changes until recached.

Always clear and recache config after edits and avoid caching in development unless needed.

bash

## Wrong way (forgetting to recache after config change):
# Change config/app.php but do not run config:cache

## Right way:
php artisan config:cache

# This ensures new config is loaded.

Quick Reference

Summary tips for using Laravel config cache:

• Run php artisan config:cache after any config change.
• Clear cache with php artisan config:clear if needed.
• Use caching in production for best performance.
• Avoid caching during active development to see config changes immediately.

Key Takeaways

Use php artisan config:cache to speed up Laravel by caching config files.

Always clear and recache config after making changes to config files.

Avoid caching config in development to prevent stale settings.

Cached config does not update environment variables until recached.

Use config cache mainly in production for better performance.