composer install command brief description

Composer tool has many commands. The following is a brief introduction to the composer install command in thecomposer commandtutorial column.

# The install command is very commonly used. Generally, after I clone a project from Github or a domestic code cloud, the first thing I do is execute the composer install command. The install command reads the composer.json file from the current directory, handles dependencies, and installs it into the vendor directory.

If the composer.lock file exists in the current directory, it will read the dependency version from this file instead of obtaining the dependency from the composer.json file. This ensures that every consumer of the library gets the same dependency version.

If there is no composer.lock file, composer will create it after handling the dependencies.

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