


How do I view information about a specific package using Composer? (composer show)
Jun 21, 2025 am 12:02 AMTo quickly get detailed information about a specific package in Composer, use the composer show vendor/package command. For example, composer show monolog/monolog, which will display version, description, dependencies and other information; if you are not sure of the name, you can use some names to combine --platform to view platform requirements; add --name-only to simplify output; use -v to display more detailed content; support wildcard search, such as monolog/*.
You can quickly get detailed information about a specific package in Composer by using the composer show
command followed by the package name. This is handy when you want to check version details, dependencies, or other metadata without leaving the terminal.
Check Info for a Specific Package
To view info about a specific package, just run:
composer show vendor/package
Replace vendor/package
with the actual name of the package you're interested in. For example:
composer show monolog/monolog
This will display things like the current version installed, description, homepage, and a list of required dependencies. It's especially useful if you're debugging or trying to confirm compatibility.
If you're not sure about the exact package name, you can use a partial name and add the --platform
flag if needed (more on that later).
Show All Installed Packages
If you want to see all packages currently installed in your project, simply run:
composer show
This lists every package along with its version and brief description. You can scroll through it to find what you're looking for, but if you're after a particular one, it's usually faster to specify the name directly as shown earlier.
Also, if you only want to list the names and versions, you can use the --name-only
option to make the output cleaner:
composer show --name-only
Include Platform (PHP & Extension) Info
Sometimes you need to check PHP version constraints or required extensions for a package. In that case, use:
composer show --platform
Or combine it with a package name:
composer show monolog/monolog --platform
This includes not just the package info but also any platform requirements such as PHP version, extensions like mbstring
, or even composer plugin requirements. This helps when moving between environments or setting up CI pipelines.
Bonus Tips
- Use
composer show -v
for more verbose output, which includes development dependencies if they're part of the package. - If you're unsure whether a package is installed, just run
composer show vendor/package
anyway — Composer will tell you if it's missing. - You can also use wildcards for searching:
composer show monolog/*
That's basically it. It's a simple command, but knowing how to use it effectively can save time when managing dependencies or troubleshooting issues.
The above is the detailed content of How do I view information about a specific package using Composer? (composer show). For more information, please follow other related articles on the PHP Chinese website!

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