Composer

Updating Commands

Update packages to latest versions within constraints, check for outdated packages.

12 commands

Pro Tips

Commit composer.lock after updates for reproducible builds

Common Mistakes

composer update modifies composer.lock - review changes

Commands

Update all packages

$ composer update

Update all dependencies.

Update specific package

$ composer update vendor/package

Update single package.

Show outdated

$ composer outdated

List outdated packages.

Update with dry run

$ composer update --dry-run

Preview updates without applying.

Update with dependencies

$ composer update vendor/package --with-dependencies

Update package and its dependencies.

Update lock file only

$ composer update --lock

Re-resolve and update only composer.lock.

Check platform reqs

$ composer check-platform-reqs

Check PHP and extension requirements.

Show package info

$ composer show vendor/package

Show details for an installed package.

Show all installed

$ composer show --installed

List all installed packages.

Why is package installed

$ composer why vendor/package

Show why a package is depended upon.

Why not a version

$ composer why-not vendor/package 3.0

Show why a version cannot be installed.

Outdated direct only

$ composer outdated --direct

Show outdated direct dependencies only.